Traffic Shaping in pfSense: Part Five

Traffic shaping in pfSense

Configuring peer-to-peer networking settings in the pfSense traffic shaping wizard.

The next screen, “Peer-to-Peer Networking”, will let you set controls over many peer-to-peer (P2P) networking protocols. By design, P2P protocols will utilize all available bandwidth unless limits are put in place. If you expect P2P traffic on your network, it is a good practice to ensure that other traffic will not be degraded due to its use. To penalize P2P traffic in pfSense, first check the first check box at the top of the page.

Many P2P technologies will deliberately try to avoid detection. Bittorrent is especially guilty of this. It will often use non-standard or random ports, or even ports associated with other protocols. You can check the p2pCatchAll check box (the second check box on the page) which will cause any unrecognized traffic to be assumed as P2p traffic and its priority lowered accordingly. You can set hard bandwidth limits for this traffic in the edit box underneath the catch-all rule. The upload and download bandwidth limits can be set in percentages, or bits/kilobits/megabits/gigabits per second.

The remaining options consist of various known P2P protocols/applications. There are more than 20 in all. Check each one that you would like to be recognized. When you are done, press the Next button.

The next page covers network games settings. Many games rely on low latency to deliver a good online gaming experience. If someone tries to download large files or game patches while playing, then that traffic can easily swallow up the packets associated with the game itself and cause lags or disconnection. By checking the check box for prioritizing network gaming traffic (the first check box on the page), you can raise the priority of game traffic so that it will be transferred first and given a guaranteed chunk of bandwidth. There are many games listed here. Check all those which should be prioritized. Even if your game is not listed, you may still want to check a similar game (if there is one on the list) so that you will have a reference rule that you can alter later. When you are done configuring network gaming settings, press the Next button.

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