Windows 10: Broken script for blocking IP addresses in firewall rule.

Hi there, I am trying to run a powershell script that I got using chat gpt. The script is supposed to block a range of ip addresses from a text document and create a block rule in windows defender firewall.The script runs it and creates the rule, but the rule has no details on it. The rule does not have the IP addresses in it and it does not have the specified program I want to block.# Specify the path to the program executable$ProgramPath = "C:\Program Files x86\Call of Duty\_retail_\cod.exe"# Specify the path to the merged text document containing IP address ranges for multiple countries$M

:)

 

firewall rule to block addresses NOT on an IP list?


I am just starting to learn the Windows Firewall (working on both Windows 7 and 10) and I'm not impressed with the inflexibility of its rules. I would like to know if


1. Is there is a way to do what I want with Windows Firewall?
2. Is there is a third-party firewall that would do it?


What I want to do is create a rule that blocks outgoing connections, for program X, that are to a destination **NOT** in an IP list.


Windows Firewall is not very flexible in how you specify IP list rules. When you give an IP list, your rule will match that list... you can't say "trigger the rule for non-matching IP addresses." Therefore to allow outgoing connections to a list, you have to


1. Change the entire firewall policy to block outgoing connections by default so that you can create an "allow rule" matching your list. This will mess up the rest of your programs.


2. Somehow combine a block rule and allow rule. Create a block rule for most traffic, with the "allow" rule overriding it when appropriate. However, this doesn't appear to be possible in general. It **may** be possible for connections that use IPSec, I'm not sure. And I'm not sure if I can use IPSec in my application.

And is there a third-party firewall that can do it? Most 3rd-party firewalls are LESS sophisticated than Windows Firewall, because the use case they are addressing is providing an interface that doesn't require much comprehension. I need one that's actually MORE sophisticated than Windows Firewall.

 

how do i add multiple ip addresses to be blocked into windows 11 firewall all at once

Hi: In your script is there a limit to how many ip addresses that can be specified in that command line?

Also, what changes to the script is necessary to read the ip addresses to be blocked from a file?

 

how do i add multiple ip addresses to be blocked into windows 11 firewall all at once

Hi SpinnerFamily,

I am Bill, an Independent Advisor. I am here to help.

You can use PowerShell to add multiple IP addresses to firewall. Use this script:

$name = Get-NetFirewallRule -DisplayName "Your Firewall Rule Name"

$ips = @("192.168.1.150", "192.168.1.151") # Add your IP addresses here

foreach ($r in $name) {

Set-NetFirewallRule -DisplayName $r.DisplayName -RemoteAddress $ips

}

Note:

Replace "Your Firewall Rule Name" with the name of your firewall rule.

Replace the IP addresses in the $ips array with the IP addresses you want to block.

This script gets the firewall rule using its display name, then sets the remote addresses for that rule to the list of IP addresses you specified.

IP blocking can affect network communication.Always double-check the IP addresses you’re blocking to avoid unintended consequences.

I hope this helps!