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Simple tool to configure Windows Filtering Platform (WFP) which can configure network activity on your computer.

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simplewall

Definitely for advanced users.


Description:

Simple tool to configureWindows Filtering Platform (WFP)which can configure network activity on your computer.

The lightweight application is less than a megabyte, and it is compatible with Windows 7 SP1 and higher operating systems. You can download either the installer or portable version. For correct working you are require administrator rights.

Features:

  • Simple interface without annoying pop ups
  • Rules editor(create your own rules)
  • Internal blocklist(block Windows spy / telemetry)
  • Dropped packets information with notification and logging to a file feature (win7+)
  • Allowed packets information with logging to a file feature (win8+)
  • Windows Subsystem for Linux (WSL) support
  • Windows services support
  • Windows Store support
  • Free and open source
  • Localization support
  • IPv6 support
To activate portable mode, create "simplewall.ini" in application folder, or move it from "%APPDATA%\Henry++\simplewall".

Nota bene:

Keep in mind, simplewall is not a control UI over Windows Firewall, and does not interact in any level with Windows Firewall. It works over Windows Filtering Platform (WFP) which is a set of internal API and system services that provide a platform for creating network filtering applications. Windows Filtering Platform is a development technology and not a firewall itself, but simplewall is the tool that uses this technology.

System requirements:

  • Windows 7, 8, 8.1, 10, 11 32-bit/64-bit/ARM64
  • An SSE2-capable CPU
  • KB2533623KB3063858 update for Windows 7 was required [x64/x32]

Donate:

GPG Signature:

Binaries have GPG signaturesimplewall.exe.sigin application folder.

  • Public key:pubkey.asc(pgpkeys.eu)
  • Key ID: 0x5635B5FD
  • Fingerprint: D985 2361 1524 AB29 BE73 30AC 2881 20A7 5635 B5FD

Reviews of idiots:

Look at them, he does not know about.gitmodulesand how to use, lol.

PS: Without idiots we are not to be fun, yeah!

Installation:

When install rules, you can choose two modes:

  • Permanent rules - rules are working until youdisable it manually.
  • Temporary rules - rules are reset after the next reboot.

Uninstall:

When you uninstall simplewall, all previously configured filters stay alive in system. To remove all filters created by simplewall, start simplewall and press "Disable filters" button.

Command line:

-install - enable filtering.
-install -temp - enable filtering until next reboot.
-install -silent - enable filtering without prompt.
-uninstall - remove all installed filters.

Rules editor:

simplewall have two types of custom user rules rules:

  • Global rules:rule applied for all applications.
  • Special rules:rule applied only for specified applications.

Rule syntax format:

To set rule applications, open rule and then navigate to "Apps" tab.

Rule syntax format:
  • IP addresses192.168.0.1; 192.168.0.1; [fc00::]
  • IP addresses with port192.168.0.1:80; 192.168.0.1:443; [fc00::]:443;
  • IP ranges192.168.0.1-192.168.0.255; 192.168.0.1-192.168.0.255;
  • IP ranges (with port)192.168.0.1-192.168.0.255:80; 192.168.0.1-192.168.0.255:443;(v2.0.20+)
  • IP with prefix lengths (CIDR)192.168.0.0/16; 192.168.0.0/24; fe80::/10
  • Ports21; 80; 443;
  • Ports ranges20-21; 49152-65534;

To specify more than one ip, port and/or host, use semicolon.

IPv4 CIDR blocks:
Address format Mask
a.b.c.d/32 255.255.255.255
a.b.c.d/31 255.255.255.254
a.b.c.d/30 255.255.255.252
a.b.c.d/29 255.255.255.248
a.b.c.d/28 255.255.255.240
a.b.c.d/27 255.255.255.224
a.b.c.d/26 255.255.255.192
a.b.c.d/25 255.255.255.128
a.b.c.0/24 255.255.255.0
a.b.c.0/23 255.255.254.0
a.b.c.0/22 255.255.252.0
a.b.c.0/21 255.255.248.0
a.b.c.0/20 255.255.240.0
a.b.c.0/19 255.255.224.0
a.b.c.0/18 255.255.192.0
a.b.c.0/17 255.255.128.0
a.b.0.0/16 255.255.0.0
a.b.0.0/15 255.254.0.0
a.b.0.0/14 255.252.0.0
a.b.0.0/13 255.248.0.0
a.b.0.0/12 255.240.0.0
a.b.0.0/11 255.224.0.0
a.b.0.0/10 255.192.0.0
a.b.0.0/9 255.128.0.0
a.0.0.0/8 255.0.0.0
a.0.0.0/7 254.0.0.0
a.0.0.0/6 252.0.0.0
a.0.0.0/5 248.0.0.0
a.0.0.0/4 240.0.0.0
a.0.0.0/3 224.0.0.0
a.0.0.0/2 192.0.0.0
a.0.0.0/1 128.0.0.0
0.0.0.0/0 0.0.0.0

IPv6 CIDR blocks:

FAQ:

Q: Are internet connections blocked when simplewall is not running?

A: Yes. Installed filters are working even if simplewall is terminated.

Q: What apps are blocked in default configuration?

A: By default, simplewall blocksallapplications. You do not need to create custom rules to block specific applications.

Q: Is it safe to use simplewall with Windows Firewall?

A: Yes. You do not need to disable Windows Firewall. These two firewalls work independently.

Q: How can i disable blocklist entirely?

A: OpenSettings->Blocklistand then click the radio buttons labeledDisable.

Q: Where is blacklist mode?

A: Blacklist was removed many days ago for uselessness. But if you need it, you can still configure it.

Solution: Configure blacklist mode in simplewall:
  1. OpenSettings->Rules
  2. UncheckBlock outbound for allandBlock inbound for alloptions.
  3. Create user rule (green cross on toolbar) with block action, any direction,Block connectionname and empty remote and local rule.
  4. You can assign this rule for apps whatever you want to block network access.

Q: Why does my network icon have an exclamation mark?

A: When you are connected to a network, Windows checks for internet connectivity using Active Probing. This feature is named as NCSI (Network Connectivity Status Indicator). You can resolve this problem in one of the following ways:

Solution 1: Enable NCSI through internal system rule:
  1. OpenSystem rulestab.
  2. AllowNCSIrule (enabled by default).

Solution 2: Disable NCSI through system registry:

CreateDisable NCSI.regand import it into registry.

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\NetworkConnectivityStatusIndicator]
"NoActiveProbe" =dword:00000001
"DisablePassivePolling" =dword:00000001

Solution 3: Disable NCSI through group policy:
  1. Launch the group policy editor (gpedit.msc).
  2. Go toComputer Configuration -> Administrative Templates -> System -> Internet Communication Management -> Internet Communication Settings.
  3. Double-clickTurn off Windows Network Connectivity Status Indicator active testsand then select Enabled. Click Ok.
  4. Open the Command Prompt (Admin) and entergpupdate /forceto enforce the changes made to the Group Policies.

Q: How can I disable Windows Firewall?

Start the command lineas an administrator,and enter the commands below.

Disable Windows Firewall profiles:
netshadvfirewallsetallprofiles state off

Enable Windows Firewall profiles:
netshadvfirewallsetallprofiles state on

Q: How can I view all filters information?

Start the command lineas an administrator,and enter the commands below.

Dump filters information saved into a `filters.xml` file:
cd/d%USERPROFILE%\Desktop

netshwfp show filters

Dump providers, callouts and layers information into a `wfpstate.xml` file:
cd/d%USERPROFILE%\Desktop

netshwfp show state

Open it in any text editor and study.

Q: How to fix Windows Update internet access?

Windows 10 and above:

Open main window menuSettings->Rules->Allow Windows Update.
This is working by method describedhere.


Windows 8.1:

Open main window, Navigate intoSystem rulestab and then enableWindows Update servicerule.


Q: Other questions:


(c) 2016-2024 Henry++