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How to disable router firewall

Something happened when I lost my DSL connection and it came back up. I could not use my Apple/Mac mail app. on my computer, iPad or iPhone. When I took them to any other WIFI they connected but at home they didn’t. I called Verizon to help and they told me that for Apple/Mac mail to work the firewall in their mode/router had to be turned off. I thought I was sure that it had been on before and I never had a problem. Does this make any sense? Does it leave my system open to hackers or others?

Posted on Jul 10, 2014 7:02 PM

As long as the NAT server is still running in the Verizon router, then nothing is getting in, unless you let it. If you check your Mac’s IP address as assigned by the Verizion router, and it is of the form 192.168.x.x, then the NAT server is still running. System Preferences -> Network -> Advanced -> TCP/IP will tell you what IP address you are using within your home, and when I had a Verizon modem, they used 192.168.x.x IP addresses for devices in the home.

For all intents and purposes a NAT router is an in-bound firewall. This is because a NAT server shares a single Internet addressable IP address with all the devices in your home. The 192.168.x.x IP address are cannot be routed across the internet. Any system out on the internet can only address your router’s IP address, but since this IP address is shared with multiple devices, there is no way the router knowns which of the devices it should send an unsolicited connection request to, so it drops any such request.

So when a NAT server is running in the home router (and just about every home router has a NAT server), the only way for an outside system to make a connection to your Mac, is for your Mac to start the connection, or to tell the router that it is expecting a connection on port nnnnn. And by default Mac OS X does NOT start any services that would tell the router to listen for a connection.

And when Mac OS X does ask the router to listen, Mac OS X tends to require the connection have the correct connection credentials. For example Back-to-My-Mac iCloud service.

With respect to Mail, Mail makes the connection request to the server. The Mail server does not connect to the Mac.

So, feel free to disable the firewall in the Verizon router, and then check to make sure you have a non-routing IP address and you are good.

Non-routine IP addresses are :

172.16.x.x, 172.17.x.x, 172.18.x.x . 172.31.x.x

If your Mac has any of these, then a NAT server is between you and the internet.

In this guide I describe how to disable the Windows 10 Firewall. If you want to learn more about firewalls you can read my Windows Firewall guide. This guide explains what a firewall is and why you need one. It also describes the difference between a software firewall (like Windows 10 Firewall) and a hardware firewall.

There are times you may need to disable the Windows 10 Firewall. For instance if you have bought a software firewall you may want to use it instead of the Windows 10 Firewall. It is not a good idea to have two software firewalls running at the same time. Normally one of them will disable the other.

It is also important to remember that it is a good idea to run both a software firewall and a hardware firewall. Most current routers have a hardware firewall included.

Disable Windows 10 Firewall

The first step in disabling your Windows 10 Firewall is to find the firewall. Click the button on your keyboard that looks like a window. This is called the Windows Key.

This brings up the start menu. Type the word firewall in the the search. The choose the option that reads Windows Firewall.

firewall search result

A new window appears that is titled Help protect your PC with Windows Firewall. On this page you can see the status of your firewall. To disable the Windows 10 Firewall click the option of Turn Windows Firewall on or off in the left sidebar.

windows firewall status

You should now see a page where you can turn on or off your Windows Firewall. Simply click the option labeled Turn off Windows Firewall (not recommended).

Then press OK at the bottom of the screen to apply your change.

disable windows firewall

Warning: DO NOT disable the Windows 10 Firewall unless you have another software firewall to replace it immediately. Your computer has a very high risk of becoming infected with a nasty Internet bug if you do not have a software firewall in place at all times.

Interested in more topics like this one? Check out these guides:

  • Learn more about the Windows 10 Firewall in this guide.
  • Check out our large database of ports here.

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My Nintendo Wii has had the same error for three months when trying to update and apparently the solution is to temporarily disable your router firewall and then switch it back on once the update is complete.

The router we have is one from talk talk, theres no buttons on other than a power one, so how do you disable it at all as I have no idea!

Any help would be much appreciated!

Replies

Thank you, I’ve managed that part now!

Now it’s asking for a username and password. The password I take it is just the router password, but how do I find out the username?

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How to disable router firewall

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Sometimes, when you first notice the presence of the alljoyn router service on Windows 10, you may be confused and eager to know what it is used for and why it keeps running on your PC without any information.

Contents:

Or for some users, on your computer, you can only find this alljoyn router eating up high CPU in task manager.

Now if you are worried about this alljoyn router service on Windows 10, there is much need for you to dive into it for more details, for instance, is this service safe on Windows 10 or what to do if you would like to stop this alljoyn router service.

What is Alljoyn Router Service?

In light of the description of Microsoft, the alljoyn router service dedicated to enabling Windows 10 to communicate with other services via IoT (Internet of Things). And the Alljoyn is an open source software, which can let Alljoyn devices communicate with others.

With this alljoyn router Windows 10, different services can better understand the data or information even on different Windows systems, such as Windows 10.

Do I Need Alljoyn Router?

Normally, for the sake of convenience and better usage of Windows systems, you would better just leave the alljoyn router service on your PC. It can make various services on Windows 10 exchange information by IoT.

That is to say you are supposed to use the alljoyn service on some programs, but in most cases, there is no need for you to remove alljoyn router service from Windows 10 unless it causes errors like high CPU usage.

Is the Alljoyn Router Service a Virus on Windows 10?

By default, this service is formally released by Microsoft. It is not a virus. You can rely on it and take advantage of it as you like.

There is not alljoyn router virus on Windows 10 at the very beginning. But as time pass by, it is possible that your alljoyn router is infected and becomes corrupted by some third-party software or external threats.

Perhaps once your alljoyn router is corrupted, or you just simply hope to disable this service on Windows 10, you are able to do that. It makes no difference even if you ended this alljoyn router service.

How to Disable Alljoyn Router Service Windows 10?

If you have no intention to run this alljoyn service on Windows 10, it is up to you to stop it from performing on your computer.

The procedure is rather foolproof, you can finish disabling the alljoynrouter with simple steps.

1. Press Windows + R to activate the Run box and then input services.msc in the box. Then hit OK to move on.

2. In Services window, scroll down to locate the Alljoyn Router service and right click to go into its Properties.

How to disable router firewall

3. In Properties window, under the General tab, find out Startup type and then choose to set it as Disabled.

How to disable router firewall

The moment you hit Apply and OK, Windows 10 appjoyn router service will have been disabled.

In this way, you can check whether or not the alljoyn service error persists on Windows 10.

Or here you can also decide to set the alljoyn router service as Manual. If it is the case, this alljoyn service won’t run in background without your permission.

How to Manage Alljoyn Router Service Automatically for Windows 10?

According to some users, disabling Alljoyn router within Windows 10 is of no use. Some malware will still activate it for its use, so here you are advised to make use of Advanced SystemCare Startup Manager to control Alljoyn router service automatically. It affords you to disable, enable, delay and delete services at startup on Windows 10, 8, 7.

1. Download, install and run Advanced SystemCare.

2. Locate Toolbox and then hit the Startup Manager to get it within Advanced SystemCare.

How to disable router firewall

3. In IObit Startup Manager, under Services tab, find out Alljoyn Router and then set it Disabled.

How to disable router firewall

Here as you can see, it is up to you to Enable or to Delay services in Startup Manager. Hence, if you stumble upon Alljoyn router error in some special programs, you can choose to Delay it for some time.

Or if you noticed that the Alljoyn Router runs at startup, you can find it out under Startup Items and then make it Disabled as well.

How to disable router firewall

In summary, the alljoyn router service makes it possible on Windows 10 to get communication between services or even on different system. And you can also gain the methods to disable this alljoyn service simply in Service settings.

Firewall is a software that acts as a shield between user’s system and external network allowing some packets to pass while discarding other’s. Firewall commonly operates on network layer i.e. on IP packets both Ipv4 and Ipv6.

Whether a packet will pass or will be bocked, depends on the rules against such type of packets in the firewall. These rules can be built-in or user-defined ones. Each packet which enters the network has to pass through this shield which verifies it against rules defined in it for such type of packets.

Each rule has a target action which is to be applied in case the packet fails to satisfy it. On Linux systems, firewall as a service is provided by many softwares, most common which are: firewalld and iptables.

In Linux there are many different types of firewalls used, but most standard ones are Iptables and Firewalld, which is going to discuss in this article.

What is FirewallD

FirewallD is the Dynamic Firewall Manager of Linux systems. This service is used to configure the network connections, thus deciding which external network or internal packets to allow traversing the network and which to block.

It allows two types of configurations, permanent and runtime. Runtime configurations will get lost ones the service is restarted while the permanent ones get retained across the system boot so that they are followed every time the service gets active.

Corresponding to these configurations, firewallD has two directories, default/fallback one (/usr/lib/firewall) which is lost ones system is updated and the system configuration (/etc/firewall) which remains permanent and overrides the default one if given. This is found as a default service in RHEL/CentOS 7 and Fedora 18.

What is Iptables

Iptables is another service which decides to allow, drop or return IP packets. Iptables service manages Ipv4 packets while Ip6tables manages Ipv6 packets. This service manages a list of tables where each table is maintained for different purpose like: ‘filter‘ table is for firewall rules, ‘nat‘ table is consulted in case of new connection, ‘mangle‘ in case of packet alterations and so on.

Each table further has chains which can be built-in or user-defined where a chain signifies a set of rules which are applies to a packet, thus deciding what the target action for that packet should be i.e. it must be ALLOWED, BLOCKED or RETURNED. This service is a default service on systems like: RHEL/CentOS 6/5 and Fedora, ArchLinux, Ubuntu etc.

To learn more about firewalls, follow the following links:

In this article we will explain how to start, stop or restart Iptables and FirewallD services in Linux.

How to Start/Stop and Enable/Disable FirewallD Service

If you’re using CentOS/RHEL 7 or Fedora 18+ versions, you should follow below instructions to manage FirewallD service.

Start FirewallD Service
Stop FirewallD Service
Check the Status of FirewallD
Check the State of FirewallD

As an alternative, you can disable the firewalld service so that it doesn’t apply rules to packets and enable ones needed again.

Disable FirewallD Service
Enable FirewallD Service
Mask FirewallD Service

Also, you can mask the firewall service which creates a symbolic link of the firewall.service to /dev/null , thus disabling the service.

Unmask FirewallD Service

This is reverse of masking the service. This removes the symlink of the service created during masking, thus re-enabling the service.

How to Start/Stop and Enable/Disable IPtables Service

On RHEL/CentOS 6/5/4 and Fedora 12-18 iptables firewall comes as pre and later, the iptables service can be installed via:

Then, the service can be started, stopped or restarted via following commands:

Start Iptables Service
Stop Iptables Service
Disable Iptables Service
Enable Iptables Service
Check Status of Iptables Service

On Ubuntu and some other Linux distributions however, ufw is the command which is used to manage the iptables firewall service. Ufw provides an easy interface for the user to handle the iptables firewall service.

Enable Ufw Iptables Firewall
Disable Ufw Iptables Firewall
Check Status of Ufw Iptables Firewall

However, if you want to list chains in iptables which contains all the rules following command can help you achieve the same:

Conclusion

These are the techniques which can help you start, stop, disable and enable the packet management services in Linux Based Systems. Different Linux distros can have different services as default, like: Ubuntu can have iptables as the default and pre-installed service, while CentOS can have firewalld as the default configured service for managing incoming and outgoing of IP packets.

Presented in this article are the most common tricks to manage these services on almost all Linux Distros, however, if you find something and would like to add on to this article, your comments are always welcome.

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Windows Firewall allows you to restrict outgoing/incoming network traffic for a specific application or TCP/IP port. It is a popular means of restricting network access to/from user workstations or servers. Windows Firewall rules can be configured individually on each computer. Or, if your computer is in a Windows domain, the administrator can manage the settings and rules of Windows Firewall using group policies. In large organizations, port filtering rules are usually brought to the level of a router, L3 switches, or dedicated firewalls. However, nothing prevents you from spreading your Windows Firewall network access restriction rules to Windows workstations or servers.

How to Configure Windows Firewall Settings

You can configure Windows Firewall settings (block or open port in Windows 10/8/7) according to your needs and restore the default settings if required. To do this, simply navigate to the Advanced Settings of the firewall. Start by opening up the control panel and typing ‘Firewall’ into the search box type. Then, open Firewall and click on the ‘Advanced Settings’ link.

Read on for detailed instructions on how to block or open a port in Windows 10/8/7 Firewall.

How to Block or Open a Port in Windows 10/8/7 Firewall

1. Open Windows Firewall and find the Advanced Settings. To open Windows Firewall, type ‘firewall.cpl’ into the search bar and press the Enter key.

When ‘Advanced Settings’ opens, click the Advanced Settings link in the left-hand pane of the main firewall dialog box. This will bring up the ‘Windows Firewall with Advanced Security’ window.

How to disable router firewall

2. Open the List of Inbound Rules.

On the left-hand pane of the window, click on ‘Inbound Rules‘ to bring up the list of rules.

How to disable router firewall

3. Set up a New Rule.

From the Actions pane on the right-hand side, select ‘New Rule…’

How to disable router firewall

4. Open the New Inbound Rule Wizard.

Select ‘Port‘ and then click ‘Next.’ This will open the ‘New Inbound Rule Wizard’ window.

From there, select ‘Port’ as the new Rule Type and click ‘Next.’

Click on ‘Specific local ports.’ Then choose a port number (e.g., 80).

Click ‘Next‘ to continue.

How to disable router firewall

5. Block the Connection.

In the Action window, select ‘Block the connection’ and click ‘Next.’

6. Apply Your New Rule to Each Profile Type.

In the Profile window, tick the boxes to apply your rule to each of the three profile types: Domain, Private, and Public. Click ‘Next‘ to continue.

7. Name Your Rule and Configure the Settings.

Choose a name for your new rule, e.g., ‘block suspicious ports.’

If you want, you can also add an optional description to your rule.

When you’re done, click ‘Finish‘ to configure the settings.

How to disable router firewall

How to Open a Port in Windows Firewall

You may want to open a port in the Windows Firewall in order to let a specific IP address communicate with your computer (e.g., when you’re playing games). The procedure to open a port remains more or less the same. All you need to do is follow the instructions in the New Inbound Rule wizard, specify the Port, and select ‘Allow the connection.’

How to Turn off TCP/IP Port in Windows Firewall with Action1

Follow the steps below to turn off the TCP/IP Port in Windows Firewall:

1. Log in to the Action1 dashboard.

2. In the menu on the left-hand side, select ‘Managed Endpoints.’

How to disable router firewall

3. Mark the endpoint for the port you want to block.

4. Click the ‘More Actions‘ button and then select the Run Command option.

How to disable router firewall

5. In the window that opens, enter the command netsh advfirewall firewall add rule name=”BlockAIM” protocol=TCP dir=out remoteport=4099 action=block . (In this case, we’re blocking port 4099).

How to disable router firewall

6. Click ‘Next Step.’

7. Click ‘Add Endpoints‘ and then select the endpoints to which you will apply this blocking rule.

How to disable router firewall

8. Click ‘Next Step‘ and schedule the execution time of your command.

How to disable router firewall

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How do I enable or disable the Firewall on my HUAWEI router

Your router has a firewall feature. A firewall is a security barrier between the Internet and your home network. When a firewall is enabled, all communication data between the Internet and your home network is scanned to protect your network security.

Method 1: Using HUAWEI AI Life App

  1. Connect your phone to the router’s Wi-Fi network.
  2. Open the HUAWEI AI Life App on your phone and go to the Router screen, then go to Firewall (or Show more > Firewall ).

How to disable router firewall How to disable router firewallHow to disable router firewall

If you want to disable the Brute force attack prevention function, click Brute force attack prevention > DEACTIVATE .

How to disable router firewall

If you want to disable the LAN firewall function, click LAN firewall, touch the button in the upper right corner of the screen, click Disable protection > OK .

Recently, my husband had trouble installing a wireless router and enlisted
the help of D-Link, the manufacturer. The staff instructed him to disable the
Microsoft firewall. Now the warning about the computer being at risk is
constantly showing. My husband told me not to worry because the router is
acting as the firewall now. Is he correct to assume that? If not, what should
we do?

Your husband is half right. The router

But not to worry. I run with only half a firewall myself.

And I get no warnings.

Let’s look at how.

A router acts as a firewall to the extent that it prevents certain types of
external access attempts from reaching your machines. Many consider that to be
“half” a firewall, because many software firewalls also block internal attempts
to access things on the internet. For example, with a router acting as your
firewall a virus

The trick, of course, to remaining safe in this situation is to be smart
about the other ways that you can get infected – don’t open attachments you
don’t trust, don’t visit websites you don’t trust, don’t allow untrusted
activex controls, and of course run regular anti- spyware

It’s what I do. I don’t run a software firewall – I rely solely on my
router, and on my own “good behavior”.

Now, about that annoying warning.

The Windows firewall is on by default. In fact, after Windows XP service
pack 2, the firewall became downright annoying in an attempt to encourage
people to do something to stay safe. If you do, or know, nothing else,
Windows wants you to turn on the firewall just to stop the annoying
message.

The other approach is to tell Windows “I know what I’m doing.”

In Control Panel, double click on Security
Center
. You should see a dialog box

How to disable router firewall

Click on the Recommendations… button for this dialog:

How to disable router firewall

Don’t turn the firewall on, but instead check the box labeled “I
have a firewall solution I’ll monitor myself.

Once you hit “OK” the firewall

How to disable router firewall

That’s the setting that, essentially, tells Windows “Stop bugging me, I know
what I’m doing.”

Do this

Subscribe to Confident Computing! Less frustration and more confidence, solutions, answers, and tips in your inbox every week.

I’ll see you there!

Leo Who?

19 comments on “How do I turn off the Windows firewall warning?”

Why don’t you mention ZoneAlarm? I’ve been using it for years and am very satisfied.

Hi Leo!
You have been very helpful to me as far as my job is concerned.I am into technical support department for DELL laptops,the kind of information that I get from u makes my job very easy.The only think I need to do is just to check my email and I find the answers for my queries from you.
Thaks LEO U been a wonderful buddy.
May U live long.
Thanks,
yawer

Hello Leo
I`m having problem loging in to my msn hotmail web page! can you please help me
Thnk u

Leo,
You are “God Sent”, thank you sooo much for all of your help !!

my firewall is on “not monitored” and cannot get it to to “on” status. it’s either on “off” or “not monitored”, what can I do

Hi, Leo
I am trying to publish my website but after publishing I get errors:”’ Some of the images could not be send to the server
I contacted 1&1 and Netobjects Fusion and they told me that the problem may be in my firewall.
Can I turn it off?
I do not have such a thing ”Security Center”” in the ”Control Panel”
I do not know what to do?
Please help
thank you

leo the windows firewall is not turning off.What do i do?

Your description of disabling Windows firewall warning was exceptionally well written-not only was it precisely correct, but you did it with zero technobabel, and the additional information you provided was both concise and useful.

hey leo i need to know how to turn my firewall off not on. if you can help me i will appericate it.
thanks, cody

My firewall is on, but windows thinks it is off. Can you suggest why.

hello Mr.leo,
i have done the firewall to not monitored status for a connection what is its mean firewall is turned off for that connection or still on. please tell.

Very nice explanation, did help me with Virus Warning, but my Firewall option doesnt have “Recommendations” button. What shall i do to disable windows firewall completely?

Hi I need to turn off my firewall on a Windows ME older computer. I cannot find security center anywhere? I need to install a Buffalo wireless adapter but it remains disabled and I do not know what to do?? Please help?
Best regards
Susie

I have done everything what it says, with the recomendations. But i still cannot get onto Windows Messenger 2009. It keeps saying “We were unable to sign you into .NET Messenger Service, possibly because of a problem with this service or with your Internet Connection. Please make sure you are connected to the internet.” But my internet connection is fine. Is it the firewall that is blocking it? I have been trying different things all day, and i cannot seem to be able to sign in please help!

I do not have a security center in my control panel what do i do now?

i get into control panel dob.click on sec.cntr.but i get a box that has nothing to do with firewall so unable to click on to recommendations. the box has areas in alphabetical order but nothing close to Firewall now what else can i do there should be some standards set up that need to give the consumer the option as to except or decline a product

http://computers-technology.helium.com/how-to/9190-how-to-enable-or-disable-the-
The link above will show you step by step how to turn off or on your Windows Firewall.

How do I turn on the Windows Firewall/ICS if I when I attempt to turn in on, I get this message:

“Windows cannot start the Firewall/ICS”.

I was attempting this from Network Connections, properties, advanced tabs.

Her husband is not “half right” as you put it – how patronising. He is 99.9% right because the half the of firewall you refer to is to stop outgoing traffic. Stopping outgoing traffic does not increase security because if you have a malicous program sending outgoing traffic, it is already too late – you are infected. It is also not a useful method of detection either as that is what your anti-virus/spyware program is for.

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How to disable router firewall

Firewall is a tricky thing in Windows. It restricts your downloads at times, stops you from remotely connecting to a PC and blocks applications from running, which is quite irritating. But so far this is a top-notch security feature provided by Windows if you know how to use it right. You can configure your firewall to block particular applications from using the Internet and securing your local data.

Block applications from accessing the Internet with GUI is easy. simply go to the Start menu and search for Firewall & Network protection. From the dialogue box, click on Domain Network and turn the Firewall Off. Likewise, you have to turn off the firewall for Private Network and Public Network. In case you need to turn off the firewall only for the Internet, turn off the Firewall only for Public Network.

Disable Windows Firewall With Command Line

However, if you are like me who prefer to disable Windows firewall with the command line, here’s a quick way to do it on Windows 10 and 7.

Open up the command prompt. Go to the Start menu, type Command Prompt. Right click on it and select Run as Administrator. This command to disable Firewall needs elevated permissions, so it needs to be run as an administrator.

How to disable router firewall

On the command prompt, Type

This will turn off the firewall for all 3 networks. To turn it back on, replace off with on.

Much like the terminal in macOS and Linux, Windows cmd also lets you move through your last used commands using the up and down arrows on your keyboard. So, if you wanted to previous last command you ran, just hit the up arrow once, edit the command (change off to on) and hit Enter.

Block Any App in the firewall (Command Line)

To block any app in the firewall, we first need to understand what is the inbound and the outbound rule. Inbound rules are defined to either block/allow the app from receiving data on your computer. Outbound rules are defined to either block/allow the application to send data from your computer.

To block any in Firewall using GUI is easy. All you have to do is go to the Firewall & Network Protection.

Click Advanced Settings and go to the Outbound rules tab. Click on New Rule on the right-hand side of the window. Select Rule Type as Program from the pop-up. Click on Next and further steps like specifying program path are self-explanatory.

However, doing the same with the command prompt is not that intuitive. First, you need to decide whether you need to block the app from receiving or sending data from the Internet. Say, you want to block Chrome app from accessing the Internet.

Next, we need to find the location of the .exe file in our system. Usually, it should be in C:\\Program Files, unless you have defined it manually.

Go to the .exe file and copy the path name. In my case for google chrome, the path would be :

Once you have the file location, all you have to do is open Command Prompt with administrator privilege and type the following command :

Now when I open chrome, internet access is disabled.

How to disable router firewall

Block Any App in the Firewall with its Port Number

In case you want to block the app by port number. First, you have to identify the port number. To do that, go to Start menu and type Resource Monitor. Right click on it and select Run as Administrator.

How to disable router firewall

Once the dialogue box opens, go to the Network tab and expand the Listening Ports section by clicking on it.

How to disable router firewall

Once you have the port number use the following command to block that particular port.

If you are not sure about the exact port number you can also choose to block a range of ports by specifying port=1000-2000.

To delete this outbound rule, type the below give command with the name of the rule you have specified earlier.

How to disable router firewall

This should fix things and Chrome should be able to access the Internet.

Wrapping Up

These methods enable you to block any particular application from accessing the Internet. This can be used against fishy apps to protect your data from being sent over to private networks or the Internet. If you have any problems with the step, you can comment the error and I can help you out with the solution.

You may have experienced VPN block issues by Windows firewall, usually it’s a default setting, but there’s always a way to get around it and get connected again. You may refer to the solutions below to proceed with.

  • Open Windows Defender Security Center
  • Go to Virus & Threat protection settings

How to disable router firewall

  • Select Exclusions
  • Select Add or remove exclusions
  • Select Add an exclusion and add your VPN client software
  • Open Control Panel

How to disable router firewall

  • Select System & Security

How to disable router firewall

  • Click Windows Defender Firewall

How to disable router firewall

  • On the left pane, click Allow an app or a feature through Windows Firewall. A window in which you can allow or prevent any app will display

How to disable router firewall

  • Click Change Settings

How to disable router firewall

  • Check for your VPN from the list of programs and apps you want to allow through your firewall
  • Check Public or Private to select the network type on which you want the VPN to run
  • If you cannot find your VPN, click Allow another app
  • Select your VPN and then click Add, then click OK
  • Open Control Panel and select Network & Internet

How to disable router firewall

  • Select Network and Sharing Center

How to disable router firewall

  • On the left pane, click Change adapter settings

How to disable router firewall

  • Click File
  • Select New incoming connection
  • Select all users you want to access your VPN connection
  • Check Through the Internet
  • Click Next
  • From the list of protocols, mark the Internet protocols you want your VPN to connect to
  • Double click Internet Protocol Version 4 (TCP/IPv4)
  • Go to Control Panel again and select Windows Firewall

How to disable router firewall

  • Click Advanced Settings

How to disable router firewall

  • Click Inbound Rules>Actions

How to disable router firewall

  • Click New Rule

How to disable router firewall

  • In the Wizard, choose Port and click Next. Most VPN clients use ports 500 and 4500 UDP, and port 1723 for TCP. You can use TCP and insert 1723 in Specific remote ports field

How to disable router firewall

  • Click Next
  • Select Allow the connection and click Next

How to disable router firewall

  • When asked ‘When does this rule apply?’ select all options (Domain, Private, Public) and apply the rule to all
  • Choose a name and description to fill the Name and Description
  • Click Finish
  • Open Windows firewall with advanced security
  • Click inbound rules on the left
  • Click New rule on the right
  • Click Custom rule
  • Specify programs or leave as all programs
  • Specify ports or leave as all ports
  • Click These IP addresses under remote IP
  • Click This IP address range
  • Type From 10.8.0.1 To 10.8.0.254
  • Close and click Next, then leave as Allow the connection
  • Apply to all profiles
  • Name your profile and click Finish

You should then be able to connect to your home devices through VPN

  • Open Control Panel
  • Select Windows Firewall
  • Select Advanced Settings

How to disable router firewall

  • Search for the ‘Routing and Remote Access‘ under Inbound Rules and Outbound Rules. For Inbound Rules: right-click Routing and Remote Access (PPTP-In), select Enable Rule. For Outbound Rules: right-click Routing and Remote Access (PPTP-Out), select Enable Rule.

In order to allow your VPN traffic to pass through the firewall, open the following ports:

  • IP Protocol=TCP, TCP Port number=1723 – used by PPTP control path
  • IP Protocol=GRE (value 47) – used by PPTP data path
  • Make sure that these ports are allowed on Windows Firewall with corresponding network profile.
  • DO NOT configure RRAS static filters if you are running on the same server RRAS based NAT router functionality. This is because RRAS static filters are stateless and NAT translation requires a stateful edge firewall like ISA firewall.
  • In general, VPN error 807 indicates that the network connection between your computer and the VPN server was interrupted. This also can be caused by a problem in the VPN transmission and is commonly the result of internet latency or simply that your VPN server has reached capacity. Try to reconnect to the VPN server.

Depending on your firewall or security software, there are steps to take to fix VPN blocked by Windows firewall. Here’s what to do if you’re using NOD32 or Kaspersky:

  • Select Setup
  • Select Advanced Setup
  • Select Antivirus and antispyware
  • Select Web access protection
  • Select HTTP, HTTPS > HTTP scanner setup, and set HTTPS filtering mode to Do not use HTTPS protocol checking.
  • Select Settings
  • Select Traffic Monitoring panel
  • Select Port Settings or settings
  • Select Network
  • Select Port Settings and uncheck the box for port 443/SSL

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How to disable the firewall

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How to disable the firewall

Post by mkc2lr » Tue Apr 05, 2011 1:45 pm

I successfully configured a client bridge with Gargoyle and since 1.3.13 the bridge runs stable.
The only issue I still have is that not all services are forwarded. I can’t access the DMR function of the connected Mediaplayer for example.
The web GUI doesn’t allow to disable the firewall. Is there any other possibility to disable it? I’m not sure this is the root cause, but I wanted to give this a try.
Thanks !

Re: How to disable the firewall

Post by behappy » Wed Apr 06, 2011 10:28 am

Re: How to disable the firewall

Post by danielle » Thu Jun 02, 2011 1:42 am

How to disable router firewall

Re: How to disable the firewall

Post by DoesItMatter » Thu Jun 02, 2011 2:47 pm

Depends what you are trying to do?

I’ve used the built in Windows XP firewall for a long time.

Have never had issues with it, but its one failure point is that it
does not block a lot of out-bound traffic.
In-bound blocking – its very good, out-bound – not so much.

You can try Tiny Personal Firewall 2.0.15A for Windows XP
Will NOT work on Vista/Win 7 though. Free and highly configurable.

By Tina | Follow | Last Updated December 10, 2020

Summary :

How to disable router firewall

The Windows Firewall will block the trusted programs to access the Internet. But now, it is easy for you to allow a program or feature through Windows Firewall not clickable. This post will show you how to allow a program through Firewall Windows 10. Besides, you can also use MiniTool software to keep computer safe.

What Is Windows Firewall?

Windows Firewall is a Windows built-in application that filters information coming to your system from the Internet and blocking potentially harmful programs. It was first introduced in Windows XP and Windows Server 2003.

It was called Internet Connection Firewall in the past. With the release of Windows 10 version 1709, it was renamed as Windows Defender Firewall.

And what does roll the Windows Defender play in? As a matter of fact, the Windows Firewall can prevent some programs on your computer from access the Internet. If a program is suspicious, the Windows Firewall will not allow it to access the Internet.

In addition, you may get a notification during the installation process, which asks whether the application should be added as an exception to Windows Firewall or not.

There is no doubt that it can provide some protection for your data and computer, especially when you don’t know whether the program is safe or not. However, to some extent, it also will bring some inconvenience, especially when the program is trustworthy.

Then how can you solve this problem? In fact, you can allow it to access the Internet very easily. And in the following section, we will walk you through how to allow a program through Firewall Windows 10 and how to block a program through Firewall Windows 10.

If you have the same demands, try the following ways.

How to disable router firewall

If you want to turn Windows Firewall for Windows 10 on or off, this post will tell you all the steps and show you a great alternative to Windows Firewall.

How to Allow a Program Through Firewall Windows 10?

As to how to allow an App through a Firewall Windows 10, it is very easy. We will show you the tutorial.

Step 1: Type Control Panel in the search box of Windows 10 and choose the best-matched one.

Step 2: In the popup window, choose Windows Defender Firewall to continue.

Step 3: In the popup window, choose Allow an app or feature through Windows Defender Firewall.

How to disable router firewall

Step 4: Then click Change settings. Check the app or feature you want to allow through the Firewall.

How to disable router firewall

Here are two points you need to pay attention to.

  • The Private allows the program to the network at home or work.
  • The Public allows the program to access the network at a public place.

Step 5: Then click OK to execute the changes.

When all steps are finished, you have successfully allowed the program or feature through Firewall Windows 10.

As a matter of fact, to block a program through Firewall Windows 10, you just need to uncheck the button of program or feature. Then click OK to continue. After that, the program or feature will be blocked through Firewall Windows 10.

How to disable router firewall

The error code 0x800704ec may occur when you are turning on Windows Defender. This post list 5 solutions to fix the Windows Defender error.

Final Words

To sum up, this post has introduced what the Windows Defender Firewall is and how to unblock a program in Firewall Windows 10. If you want to unblock or block a program in Firewall Windows 10, this post may help you a lot.

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ABOUT THE AUTHOR

How to disable router firewall

Position: Columnist

Tina is a technology enthusiast and joined MiniTool in 2018. As an editor of MiniTool, she is keeping on sharing computer tips and providing reliable solutions, especially specializing in Windows and files backup and restore. Besides, she is expanding her knowledge and skills in data recovery, disk space optimizations, etc.

On her spare time, Tina likes to watch movies, go shopping or chat with friends and enjoy her life.

Turning on a firewall may prevent you from searching or sharing files with other computers on a home network.

Applies to: В Windows 10 – all editions, Windows Server 2012 R2
Original KB number: В 298804

Symptoms

After you enable an Internet firewall, you may not be able to search, or browse, for other computers on your home or office network. And you may not be able to share files with other computers on your home or office network. For example, when you enable the Internet Connection Firewall (ICF) feature in Windows XP, you find that you can’t browse your network by using My Network Places. Also, if you use the net view \\computername command to view shares on a computer on your home or office network, you may receive the following error message:

System error 6118 has occurred. The list of servers for this workgroup is not currently available.

Cause

This behavior may occur if you enable a firewall on the network connection that you use for your home or office network. By default, a firewall closes the ports that are used for file and print sharing. The purpose is to prevent Internet computers from connecting to file and print shares on your computer.

Resolution

To resolve this behavior, use a firewall only for network connections that you use to connect directly to the Internet. For example, use a firewall on a single computer that is connected to the Internet directly through a cable modem, a DSL modem, or a dial-up modem. If you use the same network connection to connect to both the Internet and a home or office network, use a router or firewall that prevents Internet computers from connecting to the shared resources on the home or office computers.

Don’t use a firewall on network connections that you use to connect to your home or office network, unless the firewall can be configured to open ports only for your home or office network. If you connect to the Internet by using your home or office network, a firewall can be used only on the computer or the other device, such as a router, that provides the connection to the Internet. For example, if you connect to the Internet through a network that you manage, and that network uses connection sharing to provide Internet access to multiple computers, you can install or enable a firewall only on the shared Internet connection. If you connect to the Internet through a network that you do not manage, verify that your network administrator is using a firewall.

Status

This behavior is by design.

More information

A firewall is software or hardware that creates a protective barrier between your computer and potentially damaging content on the Internet. It helps guard your computer against malicious users and against many computer viruses and worms.

If you set up a firewall to help protect computer ports that are connected to the Internet, we do not recommend that you open these ports because they can be exposed to other computers on the Internet. Additionally, specific computers cannot be granted access to the open ports.

The following ports are associated with file sharing and server message block (SMB) communications:

  • Microsoft file sharing SMB: User Datagram Protocol (UDP) ports from 135 through 139 and Transmission Control Protocol (TCP) ports from 135 through 139.
  • Direct-hosted SMB traffic without a network basic input/output system (NetBIOS): port 445 (TCP and UPD).

Technical support for Windows x64 editions

Your hardware manufacturer provides technical support and assistance for Microsoft Windows x64 editions. Your hardware manufacturer provides support because a Windows x64 edition was included with your hardware. Your hardware manufacturer might have customized the Windows x64 edition installation with unique components. Unique components might include specific device drivers or might include optional settings to maximize the performance of the hardware. Microsoft will provide reasonable-effort assistance if you need technical help with your Windows x64 edition. However, you might have to contact your manufacturer directly. Your manufacturer is best qualified to support the software that your manufacturer installed on the hardware.

Tech columnist Kim Komando explains that you don’t need to be a pro to know and use these insider computer tricks.

Corrections & Clarifications: An earlier version of this story misstated when WPA3 began.

Most of us don’t give a second thought to the router that manages our home internet. We assume it’s working fine, just like the day we installed it – which is why hackers can break into your network and wreak havoc without you even realizing it.

Remember, every device in your network as at stake.

The problem with the internet of things is that there is no security standard. So, we purchase cameras, speakers, thermostats, and more thinking these gadgets are locked down at the get-go. Tap or click here for a recent FBI warning and steps to protect your so-called smart devices.

Now that you know why you need to pay attention to your router, let’s get started.

1. Regular or automatic updates

When a router gets an update, you probably won’t know about it. Newer routers can download them automatically and nearly every router has options to update the firmware manually; so if it’s not an automatic process, you’ll need to check for them every three months.

To get to your router admin page, you’ll need the IP address used by your router and the admin password. These may be written on the user guide for your brand of router, but if you don’t have this information, there are sites that can help you find them. Tap or click here for a list of default passwords for 548 router brands.

Once you’ve opened your router’s admin page, find a section called “Advanced” or “Management” to look for firmware updates. Download any updates. If there is an option in your router’s settings that enables automatic updates, turn it on.

2. Stronger encryption

Most routers include encryption by default. If you’re required to enter a password to connect, you already have it set up. But don’t move on just yet – there are different types of Wi-Fi encryptions, and some are much weaker than others. . Don’t forget, many routers ship with options for outdated encryption settings.

The most popular Wi-Fi security right now is Wi-Fi Protected Access 3 (WPA3) encryption. The original WPA is over a decade old, but if you’re shopping for a new router, be sure it supports WPA3. This is the latest version of the wireless standard available. Tap or click here to learn more about the benefits of WPA3.

To check your encryption settings, go to the router’s admin menu. You should be able to find encryption under the “Wireless” or “Security” menu. If you still have an older router, select one that starts with “WPA2.”

If your router is not WPA3 compatible, “WPA2-PSK AES” is the next most secure option. If you have older gadgets on your Wi-Fi network, you might have to select “WPA2-PSK AES + WPA-PSK TKIP” to get them working.

This hybrid setting keeps the benefits of WPA2 while leaving compatibility for older, less secure devices. If your main network is securely encrypted, they’ll be safe to use.

Most importantly, never choose “Open,” which means no security at all. The same goes for WEP, which is a highly outdated standard that’s easily hacked.

3. A built-in firewall

One of the best security tools built into your router is the firewall. Nearly every router from the last decade includes one in some form or another.

Not every router labels its firewall the same. You usually find this feature under your router’s advanced settings like “NAT filtering,” “port forwarding,” “port filtering” or “services blocking.”

These settings let you tweak your network’s incoming and outgoing data ports and protect them from outsiders. But be extremely careful with these settings; your default firewall is usually enough, and misconfiguring your ports can knock you off the web or make it easier for hackers to break in.

If you do make a mistake in this area, call your internet provider. A trained technician will know the optimal port settings for your service.

4. Optimized Quad9 DNS settings

Check out the Quad9 Domain Name System service, maintained by cybersecurity advocates at IBM and The Global Cyber Alliance. Once set as your DNS service, every time you click on a web link, Quad9 will check the site against IBM X-Force’s threat intelligence database of over 40 billion analyzed webpages and images.

I have a whole write-up about it on my site, including the step-by-step instructions for your Windows PC or Mac. Tap or click here to start using this free powerful security tool.

5. No remote access

Have you ever had a technician take over your computer while you were on the phone? If so, you’re already familiar with “remote administration,” which is commonly used in tech support.

Scammers and hackers find remote access an easy path to a home network. Remote desktop management is one of the pillars of several security flaws found in Windows. Tap or click here to learn more about a frightening remote access bug that affected Windows users .

When it comes to your router, you’re better off disabling these settings altogether. You can usually find this in your router settings under the “Remote Administration” heading.

Even if you do all this, you still need to take steps to lock down your internet of things devices. I have several tips on my site. Tap or click here to change one setting and stop hackers from taking over your smart home devices.

There are plenty of reasons your Wi-Fi keeps slowing down (and at the worst times, too, it seems). It could be signal congestion, physical location, firmware issues, hardware limitations, or maybe your space is just too big for your router coverage.

If you want to boost your home Wi-Fi to stop constant video buffering or slow webpage loading, tap or click here for my do-it-yourself guide that should help you speed things up.

We are trying to disable a port 443 but no luck yet. Blocked from the firewall, nothing happened

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24 Replies

Port 443 will only be open if an application is actively listening on it.

If you stop that application, the port will be shown as closed.

Why would you want to disable port 443 on a computer.

I guess, we are talking about an outgoing port. This port is needed for many important tasks like software updates, etc.

If you want to limit what the computer may or may not reach over https, than the easiest way would be to block it at the perimeter firewall.

Usually you would first add a rule that allows traffic to windows and AV update sites and than you would add another rule, that denies all the other sites.

Yes, We did block under all profiles( shouldn’t it make no difference?)
We need to disable/block a port 443 to run some kinda of application. Application doesn’t work if port is open. Unfortunately, we can’t access the router.

Why would you want to disable port 443 on a computer.

I guess, we are talking about an outgoing port. This port is needed for many important tasks like software updates, etc.

If you want to limit what the computer may or may not reach over https, than the easiest way would be to block it at the perimeter firewall.

Usually you would first add a rule that allows traffic to windows and AV update sites and than you would add another rule, that denies all the other sites.

No, that’s not how it works.

outgoing ports are ephemeral and will not use well known port ID’s (below 1024).

I don’t understand why an application would specifically require a port to be blocked.

Yes, We did block under all profiles( shouldn’t it make no difference?)
We need to disable/block a port 443 to run some kinda of application. Application doesn’t work if port is open. Unfortunately, we can’t access the router.

“some kinda of application”? Which application? What error do you get?

Why does the router matter here?

Can you post the output of a netstat -anob |find “443”

Router– because I thought i would try to disable a port forwarding on it.

It’s virtual merchant. We called the support line, they says they can’t do anything until port is closed

I “assume” he is installing an application that runs on Port 443, but the port is already in use and he is getting an error trying to run the new application?

Error msg- SSL Server anonymous Authentication Vulnerability

This doesn’t make any sense.

I “assume” he is installing an application that runs on Port 443, but the port is already in use and he is getting an error trying to run the new application?

This could but still, the vendor saying to close 443 is nonsense.

Why would you want to disable port 443 on a computer.

I guess, we are talking about an outgoing port. This port is needed for many important tasks like software updates, etc.

If you want to limit what the computer may or may not reach over https, than the easiest way would be to block it at the perimeter firewall.

Usually you would first add a rule that allows traffic to windows and AV update sites and than you would add another rule, that denies all the other sites.

No, that’s not how it works.

outgoing ports are ephemeral and will not use well known port ID’s (below 1024).

But I also agree with the scenario others mentioned, that the OP possibly wanted to install some software that complained, that port 443 is already in use.

Would be nice if the OP would better explain the problem he actually has.

If you have a Netgear router and you want that it works perfectly. For that you have to know all the issues that may occur in any time so that you can sort out it easily, as it has be resolved immediately so that it perform its functionality in normal way regardless making trouble. There are so many issues but we are describing two issues here so that you sort out it by yourself.
These issues are:
How to Configure a Laptop to a Wireless Netgear Router?
How to disable Netgear router firewall?
Just read the article you may found something interesting and full of information. Have a look!

How to Configure a Laptop to a Wireless Netgear Router?

A wireless router is a device that acts as a gateway between your computer and your high-speed modem, such as a wireless access point that allows your wireless devices such as a laptop, connect the network devices. Netgear produces many types of routers and each offers different ranges and options for both business and household users. Before you can use a Netgear router, you must connect the devices using Ethernet cables and configure the router. But most of the customers don’t know how to configure it. This is the reason it has established several Netgear Router Technical Support centers so that the customers can get quick and reliable support from there.

Here, we are suggesting you quick steps to configure a laptop to a wireless Netgear Router. Follow the below given steps:

  • Connect your high-speed modem to Netgear router via an Ethernet cable.
  • Connect your computer and the Netgear router with an Ethernet cable.
  • Turn on the devices in order. First turn on your modem, then wait at least 2 minutes. This allows you to connect to your ISP server. Make sure the modem status indicator shows that it is properly connected to the server. Then plug in the AC adapter to Netgear router and an electrical outlet.
  • Open your web browser and connect to the URL address of the router. In the address bar of your browser, type the address of the router.
    Netgear Wireless can be:
    http://www.routerlogin.net,
    http://www.routerlogin.com or
    http://192.168.1.1.
    You can use any of them. Press “Enter” once you’ve written the address.
  • Enter the user name and the default password. By default, the username is “admin” and the password is “password”.
  • Follow the instructions in the “Setup Wizard” (“Setup Wizard”). Once logged on to the router, the wizard will load and ask you if you want to detect the type of Internet connection.
  • Sets the wireless settings and follow the instructions in wizard

After following the above given steps you can successfully configure Netgear router on your system. If you are still facing any technical issues then contact to Netgear Router Customer Service center to get instant help.

How to disable Netgear router firewall?

In order to disable Netgear router firewall, users will need to add a rule. Users can follow the below mentioned steps to disable Netgear router firewall.

Step 1: Open the web browser and type in “192.168.1.1” in the address bar to open the admin panel.

Step 2: Users can then enter the account username and password in order to login to the router panel.

Step 3: Users can then move on to the main menu and then choose “Security” followed by “Rules”.

Step 4: Users can then add a new rule in the inbound services with the name of the service as “Any” and then check on “Allow Always”.

Step 5: Users can then move on to a new rule and then make sure that the rule is enabled. This will disable the firewall router.

In case unable to follow the above mentioned steps then feel free to seek certified technicians advice by dialing the 24/7 Netgear router helpline number or Netgear Router Tech Support Number.

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How to Turn Off a Router’s Firewall_

If you are experimenting with the various features of your wireless network, you may wonder how to turn off a router’s firewall. The best routers, after all, allow for all manner of settings adjustments. Why would you turn off the firewall and how to do it? Keep reading to find out exactly that.

KEY TAKEAWAYS:

  • A router’s built-in firewall or default firewall is an important measure of wireless network connection security, so exercise caution when turning off software firewalls of any kind.
  • Some may want to temporarily disable the firewall feature for a speed and efficiency boost within their network connection.
  • You can disable a router’s firewall via a web browser admin page or by accessing the router’s firmware software.

Why Turn Off a Router’s Firewall?

Though a network firewall is extremely important for security, some users turn it off for advanced Internet speed and more efficient connections. It is highly risky, however, as you open yourself up to hackers, viruses, and all kinds of other Internet-based nasties. Perform this procedure at your own risk, such as when learning how to disable access to a router from the Internet.

Be sure to always turn the firewall back on as soon as you are done using whatever feature that required it to be disabled in the first place.

How to Turn Off a Router’s Firewall

This is a relatively difficult process, especially when compared to learning how a WiFi range extender works. Follow along, however, and you’ll be fine.

Make sure your Internet connection is running smoothly, with the cable modem plugged into the router via Ethernet cable and the router emitting a clean signal. Also, jot down your router’s IP address, network name, and password.

Access the admin panel by entering the IP address into a standard web browser on a computer. This can also be done by opening up the firmware software, so it depends on your router. Enter the network name and password if needed.

Click on the advanced settings option, though this may just be called “settings” depending on your router.

Find the firewall settings page. Click on “disable firewall” or “enable firewall” if the latter is activated. This option should be clearly demarcated and easy to find.

Once you have clicked to disable the firewall, be sure to click “OK” to accept the settings change. After that, you may need to reset the router to fully integrate the change. Also, you can always perform this procedure to turn the firewall back on again when needed. After all, a router’s firewall is an integral part of wireless network security.

F.A.Q.S

Is port forwarding needed to network a printer through a router?

Not necessary, as many wireless printers can access your network natively, though you may need to mess with advanced settings and be sure to download any automatic updates for the printer.

How to make my router more secure?

To make your router more secure, enable the firewall and take a look at security settings. These security settings differ depending on different broadband routers.

Have you checked the manuals?

A router’s manual, after all, will include information on firewall settings, automatic updates, advanced settings, router settings, security settings, and much information regarding Internet access.

STAT: A firewall is a barrier that controls what kind of data comes into and out of your network. A firewall can prevent spam sites from installing unwanted programs on your computer, protect your personal information from theft, and much more. (source)

How to disable router firewall

Should You Disable SIP ALG?

You might be wondering if you should turn your SIP Application Layer Gateway (ALG) on or off. The short answer is that you should keep it off. This is not the default factory setting for your router, so you need to get in touch with your IT service provider or to follow the instructions that come with your specific router model to turn it off.

Leaving the SIP ALG on can create a host of problems at inopportune moments, such as cutting off your business conversations, blocking incoming calls or failing to set up two-way audio transmissions.

How to Disable SIP ALG

The Juxto support team can help you configure your router so the SIP ALG won’t interfere with your phone calls. This support is not under our standard support services and requires scheduling a technical support call and will be charged at your standard professional services rate. Otherwise, we recommend asking your IT provider for help before configuring your device.

Most routers have their own set of rules for configuring SIP ALG. If you want to disable SIP ALG for your router, locate its brand and model in the alphabetical table below and follow the listed instructions.

Disclaimer: You should consult with an IT or network professional before changing your router’s configuration to avoid any problems.

WARNING! The author of the tutorial recommends that you run the software firewall even if you have a hardware-based firewall. Do not disable firewalld/ufw as it protects the individual server/VM.

Linux disable firewall command

Let us see how to stop and disable Firewalld on a CentOS or RHEL 7.x based system.

Is firewalld running on my system?

Run:
sudo firewall-cmd –state

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Stop the the firewalld

Again, type:
sudo systemctl stop firewalld

Disable the FirewallD service at boot time

sudo systemctl disable firewalld
sudo systemctl mask –now firewalld

Verify that the FirewallD is gone

Simply type:
sudo systemctl status firewalld
Sample outputs:

For more info see:

How do enable the firewalld again?

Simply run the following commands:
sudo systemctl unmask –now firewalld
sudo systemctl enable firewalld
sudo systemctl start firewalld
## verify that the firewalld started ##
sudo firewall-cmd –state

Linux disable ufw based firewall

ufw is easy to use app for managing a Linux firewall and aims to provide an easy to use interface for the user. It is the default on Ubuntu and can be installed on Debian, CentOS, and other Linux distros.

Is the ufw running?

The syntax is:
sudo ufw status

Stop the ufw on Linux

sudo ufw disable

Disable the ufw on Linux at boot time

sudo systemctl disable ufw

Verify that the ufw is gone

sudo ufw status
sudo systemctl status ufw

For more info see:

How do enable the ufw again?

Just issue the following two commands to enable the firewall and protect your box again:
sudo systemctl enable ufw
sudo ufw enable
## verify that ufw started ##
sudo ufw status

A note about older Linux distro

You need to use the service command and you must be a root user to run the following commands:

Stop the iptables service on Linux

service iptables stop

Disable the iptables service at boot time on Linux

Conclusion

In this page, you learned how to stop and permanently disable the firewall on a Linux based operating system using various command line options.

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  • How to disable router firewall
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  • Ok, I’m kinda computer literate on many fronts, but I am clueless about networking. Here’s the scenario:

    For a while, I’ve been using Windows Live Messenger to video chat with my family while on the road for work. It’s been great for the kids AND me; keeps us all sane. Until recently, my home desktop was connected to the internet via an ethernet cable connection to a DSL modem. No firewall in the modem, though I’ve always used ZoneAlarm Pro on the computer.

    I’ve recently set up a new modem/wireless router to eliminate the DSL wire running across the room. Now, my desktop connects wirelessly to a 2Wire router. I’m NOT really running a home network. My desktop and laptop both use the wireless internet, but they aren’t networked to each other.

    You can see where this is going. Since changing to the router, Live Messenger video chat no longer works well. Video is freezing, audio hardly exists. It’s so bad it’s pointless to try and use. The regular internet works great however, with faster speeds than before.

    So. I assume this has something to do with the firewall built into the 2Wire router. I’ve tried turning off firewall protection for the desktop (DMZplus mode, whatever that means) and when I use hotel wifi on the laptop, video chat works well again.

    So. how necessary is this router firewall? If I just leave it in DMZ mode but continue to run ZoneAlarm Pro on my desktop, are there any massive security risks with this? More to the point, is this setup any different or more dangerous than my old configuration of using the wired modem (with no firewall) and ZoneAlarm Pro?

    Table of Contents

    In this tutorial we will learn how to disable ICMP and ICMPv6 redirects on the Linux server. ICMP redirects are used on routers so if your Linux server is not acting as a router then as a general security practice it is recommended to disable the redirects. Even if your Linux server is acting as a router with forwarding turned ON, you can disable ICMP redirects on selective interface using kernel parameters (sysctl).

    1. What are ICMP redirects

    • An ICMP redirect packet is generated by a router to inform a host of a better route to some specific destination.
    • The recipient of an ICMP redirect overrides its route table with the information given in the redirect packet.
    • Redirects are only required when a non-default router is preferred for some particular peer addresses, and this knowledge is not hard-configured on the system.
    • The default router will then be initially attempted for sends to those peers and, if it supports redirects, it will respond with one naming the alternate router.
    • It may or may not also forward the original packet.
    • If this system accepts redirects it uses the information given to create a temporary routing entry for the alternate router.
    • The advantage of such a configuration is that the knowledge of the network architecture and the required routers need be maintained on only a relatively few systems – the routers that are default-router for each subnet, rather than all client systems on all subnets.
    • The disadvantage is that malicious systems could send redirects to manipulate other systems.

    2. How to disable ICMP redirects for IPv4

    There are two methods to ignore ICMP requests. The below section covers only IPv4 network.

    2.1 Using firewall rule

    We can add a rule with firewalld to block all the TCMP redirects. First of all get the list of active zones

    So in my case I am only using the default public zone which has both my interface so I will apply my firewalld rules to this zone.

    Next reload the rules

    List and verify the rule

    How to disable router firewallDisable ICMP redirect with firewalld

    2.2 Using kernel parameters (sysctl)

    If your Linux server is acting as a router with forwarding enabled, you can choose to disable ICMP redirect on all or selected interface.

    To disable ICMP redirect on all the interface

    To disable ICMP redirects on eth0 only

    If your Linux server is not acting as a router then you can disable ICMP redirects on all the interfaces

    You can add these configuration values in a new file 96-disable-icmpv4.conf under /etc/sysctl.d .

    To apply these changes runtime:

    and verify the output:

    Disable ICMP redirects with sysctl

    3. How to disable ICMP redirects for IPv6

    We can use similar methods to ignore ICMPv6 requests on the Linux server

    3.1 Using firewall rule

    To block ICMPv6 redirects across all the interfaces use:

    To disable ICMPv6 request for single eth0 interface use:

    To apply in runtime any of the above rules, reload of firewalld is required.

    3.2 Using kernel parameters (sysctl)

    Logic behind ignoring ICMPv6 redirects is different from one used with IPv4. To make host ignore ICMPv6 redirects we must either:

    run host as a IPv6 gateway (enable IPv6 forwarding)

    OR

    disable ICMPv6 redirects per interface

    You can add these configuration parameters inside a new file 95-disable-icmpv6.conf under /etc/sysctl.d

    To apply the changes runtime:

    Next verify the output:

    How to disable router firewallDisable ICMPv6 using sysctl kernel parameters

    What’s Next

    You should also disable ICMP timestamp response on the Linux server
    How to disable ICMP timestamp responses in Linux

    Conclusion

    In this tutorial you learned different methods to disable ICMPv4 and ICMPv6 redirect messages. In production environment these are some of the basic requirement to enhance the security of individual Linux servers. For IPv6 environment you could also completely disable IPv6 if you are not using it in your environment.

    References

    Related Posts

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    Windows firewall can be enabled/disabled from command line using netsh command.

    Windows 10 / Windows 8/ Windows 7 / Server 2008 /Vista:

    Let’s see the syntax of netsh advfirewall to configure firewall on these Windows versions. Firewall settings are different for each of the 3 networks(Domain, private, public). So based on which network firewall you want to enable/disable, the command would vary.

    You can turn on firewall for the current network profile(does not matter if it’s domain/private/public network) using the below command.

    Turn off firewall for the current profile:

    These commands should be run from an elevated administrator command prompt. Otherwise you would get the below error.

    To enable/disable firewall for a specific network profile, you can use the below commands.

    Domain network

    Turn on Domain network firewall:

    Turn off domain network firewall:

    Private network

    Turn on private network firewall:

    Turn off private network firewall:

    Public network

    Turn on public network firewall:

    Turn off public network firewall:

    Configure for all networks

    Turn on firewall for all networks

    Turn off firewall for all networks

    Older Windows versions – XP / Server 2003:

    Below is the command to turn on firewall.

    The command to turn off firewall is:

    Administrator privileges are required to configure firewall so above command can be run only from admin accounts.

    netsh firewall is deprecated in new versions.

    In Windows 10/ 8 / 7 / Vista/ Server 2008, ‘netsh firewall‘ command prints message like below.

    running it from normal cmd give this error.

    Open cmd as with ‘run as adminitrator’ option.

    Awesome article, Thank you very much

    Thank you very much

    Thanks A lot for sharing knowledge
    Wanna add note :
    the old command netsh.exe firewall set opmode disable or enable this command was Used only with Public profile for windows to set it on Or off . But The new Command Specially this : Netsh.exe advfirewall set allprofiles state on (Perfect Command)
    Really …… Thanks too much for sharing this I spent a long time in searching for such this this command because it’s Comprehensive for security issue .

    Typo:
    Turn on public network firewall:
    netsh advfirewall set publicprofile state on
    Turn on public network firewall:
    __
    netsh advfirewall set publicprofile state off
    Just trying to help

    Thank you very much

    First article that solves all my issues with clear exampls

    Normally, when we working on Cisco Routers & Switches either on Cisco Packet Tracer & GNS3 or in a real environment automatic DNS lookup creates a problem. Whenever we accidentally execute a wrong command on the console of the router or switch then we have to wait for some time to get it working again. This is because of DNS lookup. Cisco devices are preconfigured with an automatic DNS lookup. In this article, we will discuss how we can disable this automatic DNS lookup.

    How to disable router firewallDisable DNS Lookup on Cisco Device

    Table of Contents

    What is the automatic DNS Lookup?

    DNS (Domain Name System), is a system that is used to translate a domain name to an IP address. In Cisco devices, this lookup feature is by default enabled. So, whenever someone executes a wrong command in the Cisco devices console, then the Router or Switch by default starting looking for an IP address of that name. However, no such domain name present in the global DNS server. That’s why it takes some time to resolve the unknown DNS query. This DNS lookup process looks like the below image.

    How to disable DNS lookup?

    Now, we will discuss how we can stop unnecessary domain lookup. In order to disable DNS lookup, you have to type the below command in the global configuration of the Cisco device.

    This command helps you to prevent automatic DNS lookup in Cisco devices.

    How to disable router firewall

    Other DNS related useful command for Cisco IOS

    Cisco provides you a facility to store small numbers of DNS queries in the device storage itself. It helps administrators to execute ping or traceroute-related queries just using a domain name, which is easy to remember. Below, the global configuration mode command can be used to make a DNS entry in the Cisco router for a particular host. where host-name is the domain name of the host and ip_address is the address of the machine. For example, this command looks like :

    Now, if you want to ping 192.168.1.1 address, you just have to type ping gns3network.com, and your router itself converts this domain name into IP address as per stored into DNS record.

    Summary

    In this article, we discussed DNS lookup. We also discussed some methods that can be used to disable DNS lookup in Cisco devices. However, whenever there is a need to enable DNS lookup for a particular host, we can!

    Did you find this article helpful! Please leave a comment in comment box.

    The router that my ISP has delivered contains an IPv6 firewall. The only configuration option is whether it is on or off. Apparently, this firewall simply denies all incoming connections.

    I understand this is to prevent exposing all hosts and all their open ports to the entire internet.

    If I want to receive incoming IPv6 connection then I will need to disable this firewall.

    Is it dangerous to disable it? I wonder if devices such as PCs and mobile devices are secure enough to be exposed to the internet. They certainly are supposed to be secure but are they secure in a practical sense?

    2 Answers 2

    Yes, it is dangerous to disable a firewall with out any compensating controls or replacement filtering. It is true that an internet IP address indexer for IPv6 has much more to cover, but it does happen. Sans has articles on this.

    One of the issues here is that IPv6 allows for a direct attack on an internal device. NAT is not used (at least that is the intention of ipv6) so an attacker doesn’t discover the router first, it is trying to send messages directly to the device internally.

    Although there is less attention placed on attacking ipv6, it definitely is happening. In my day job we look for ipv6 on internal networks that are ipv4 based as signs of a breech.

    A suggestion for an answer to the question of “if I turn off full blocking of ipv6 because I want to use it, what then?” would be to run through a pfsense box. Here is an article. https://blog.joelj.org/setting-up-pfsense-with-ipv6/ This would allow only devices and services that you want exposed to the internet open, instead of all devices on your network, some that may have vulnerabilities or mis-configurations.

    My opinion is that it is not dangerous to disable the firewall. But still, it is a bit unwise.

    I have had since year 2014 (if I recall right) directly connected IPv6 without any firewall at all, but there have never been any attempts using IPv6, even if the primary devices sit in the addresses ::1 and ::10. With IPv4 it happens all the time, trying SSH, trying HTTP vulnerabilities, trying common usernames and passwords etc. I use fail2ban, and additionally I route a bunch of large /12 . /16 IPv4 blocks to /dev/null because they are useless for me. Without those the number of log rows from IPv4 attempts would be well above 100.000 per day. But as said, never anything with IPv6.

    I am not saying that IPv6 attempts will not come. But I consider IPv6 much harder for hacking because of the trillion-size address space.

    If I would need myself to break into a /64 IPv6 subnet, I do not know where to start from. Perhaps I should first use some other means (fake phone call about support?) to find what equipment is in that destination, to be able to guess ranges of MAC addresses and the calculated IPv6 addresses, instead of shooting randomly the 2^64 block. Or concentrate on such vendor MAC addresses where the vendor is known to have certain vulnerabilities.