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Limiting Bandwidth from a Jail using Dummynet/IPFW?

Western Digital Drives - The Preferred Drives of FreeNAS and TrueNAS CORE
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Supa

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Jan 10, 2014
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My current steps: (still troubleshooting)
  • Enable dummynet and ipfw the FreeBSD traffic shaping module:
    • edit /boot/loader.conf and add
    • ipfw_load="YES"
    • dummynet_load="YES"
      run kldload dummynet to load the modules or just restart the server.
  • Set up a pipe that restricts traffic
    • ipfw add 1 allow tcp from any to me 22 keep-state
    • ipfw pipe 1 config bw 20Mbit/s
    • ipfw add 1000 pipe 1 ip from 192.168.1.226 to any
  • Limit upload through the pipe (through the PMS jail)
  • systat -ifstat 1 is used to monitor bandwidth
  • You can see your pipes with ipfw pipe show (just as you see the regular rules with ipfw show.
  • ipfw pipe flush will destroy all the pipes generated.
Sources:
http://info.iet.unipi.it/~luigi/dummynet/
http://info.iet.unipi.it/~luigi/ip_dummynet/original.html
http://cs.baylor.edu/~donahoo/tools/dummy/tutorial.htm
 
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SweetAndLow

Sweet'NASty
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Nov 6, 2013
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Did you try logging in with your plex account on the server? I haven't seen this problem before and you should ask in the plex forums.
 

Supa

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So whenever I run the command:
  • ipfw add 1000 pipe 1 ip from 192.168.1.226 to any
Plex Plugin crashes.. and restarting the jail does nothing. I have to reboot the server. Any ideas why?

I grabbed a log from the Plex Jail: http://nopaste.linux-dev.org/?967950 (Error sending out discover packet: send_to: Can't assign requested address)
 
D

dlavigne

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Is this now a question or a how-to? If a question, what is it?
 

hungarianhc

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Mar 11, 2014
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No trying to hijack the thread, but I'm interested in this as well, and i'm actually interested in one step further. I'd like to be able to time the throttling... I.E. Throttle my uploads from 7AM til midnight. After midnight, let it go max speed.
 

pirateghost

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Feb 29, 2012
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No trying to hijack the thread, but I'm interested in this as well, and i'm actually interested in one step further. I'd like to be able to time the throttling... I.E. Throttle my uploads from 7AM til midnight. After midnight, let it go max speed.
Use your router for that. If your router doesn't support QOS, then get one (or build one) that does.
 
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