Posts tagged trafficshaping

pfsense: traffic shaping

posted on 2016-03-20 18:12:20

why?

Over a small broadband connection, to a backend which is split physically into two networks, guarantee that one network can not eat up all the bandwidth. This shall be achieved by per-interface settings.

setup

On the PFSense, there are 3 port:

  • WAN
  • LAN
  • OPT1

LAN is the important network here, so the OPT1 interface shall be cut back.

how?

In the 2.x series, you have to do it like this:

  • Firewall >> Traffic Shaper
  • Click on OPT1 interface in the tree on the left
  • Checkbox 'enable', enter your available bandwidth (likely 1Gbit)
  • Button 'save'
  • Button 'apply new changes'
  • Button 'add new queue'
  • Enter a queue name (this is important to do before saving! Else you have to ssh into your PFS and fix the config via viconfig. Search for queue in there and remove the old setting. If you have trouble finding it, add another queue with a unique name and search for it then.)
  • Checkbox 'enable'
  • Checkbox 'default queue'
  • Bandwidth here is again '1 Gbit' then
  • Service Curve, checkbox 'upper limit' and enter your limit in the m2 field, i.e. '10Kb'
  • Button 'save'
  • Button 'apply new changes'

Then you should be done.

testing

On the main page of the PFS webgui, add the 'traffic graphs' to the front page dashboard. There you see your throughput easily.

Load a large HD video on youtube from a host on the limited subnet, to have a completely used connection. This will not work with mobile devices, since you cannot set the desired quality there. (!)

Changing the m2 value in a separate window (and applying the changes) should show its limiting capability rather nicely.

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