Martin Brinkmann
Apr 19, 2006
Updated • May 4, 2013
File Sharing, Internet

Protowalls sole purpose is to run as a system friendly background task (aka using little resources) that blocks IP addresses. You might be saying that a firewall can do this as well and you are right, of course. But, many firewalls tend to have problems and use lots of system resources if you add many IP addresses to them.

In Protowall, all the work is done by the driver that filters each packet, extracts the IP header and then compares the address with the ones in the table, then either discards or permits the packet to pass.

Update: Protowall has been discontinued. Peer Guardian used to be a solid alternative for the IP blocking software, but it has been discontinued as well. A program that is still available, even though development has slowed down considerably in recent years, is the Peer Guardian alternative Peer Block.

It makes use of a similar concept, blocking a list of IP addresses outright from connecting to your computer system or network. Users can subscribe to various lists, for instance a P2P blacklist, to block IP addresses by application or type, or program used. A click on List Manager displays the available lists in the program interface, which you can then subscribe to to block those IP addresses from establishing a connection to your system. This is a very comfortable way of adding IP blacklists to your system. Note that it makes it quite difficult on the other hand to avoid false positives.

Some programs, like the popular uTorrent Bittorrent client for instance, ship with capabilities to load IP blocklists right into the program. Unlike Peerblock or Peer Guardian, those are then only blocked from connecting as peers in the client, and not system wide. It is an excellent alternative if you do not want to run an IP filtering software globally on your system, but only for specific applications.


Tutorials & Tips

Previous Post: «
Next Post: «


  1. Decent60 said on November 11, 2013 at 7:33 pm

    K-Lite pack MEGA. All you need to know lol If it won’t play with that, then it needed a whole new program to use anyways.

  2. Anonymous said on November 11, 2013 at 10:48 pm

    VLC Player has played just about every file for me. If VLC can’t play it, then the file was probably malicious anyways

    1. Martin Brinkmann said on November 11, 2013 at 10:53 pm

      As I said, VLC should have you covered. But if you use Media Player or something similar, you may like this.

  3. Ron said on November 11, 2013 at 11:39 pm

    Media Player Classic – Home Cinema (MPC-HC) or Media Player Classic – BE (MPC-BE) should be able to play (almost) anything also. MPC-BE is my player of choice. (It also has a small footprint on your hard drive, which is something I always take into consideration when choosing between different programs.)

  4. brian Tran said on November 12, 2013 at 3:28 pm

    love utorrent..

Leave a Reply

Check the box to consent to your data being stored in line with the guidelines set out in our privacy policy

We love comments and welcome thoughtful and civilized discussion. Rudeness and personal attacks will not be tolerated. Please stay on-topic.
Please note that your comment may not appear immediately after you post it.