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Thread: Pppoe mtu

  1. #1
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    Default Pppoe mtu

    Hello everyone,

    is there a way to edit or know the MTU value set for a PPPoE connection?

  2. #2
    Untangle Ninja Jim.Alles's Avatar
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    well, lets see a quick search on the Wicki
    https://wiki.untangle.com/index.php/...t_load._Why.3F
    If you think I got Grumpy

  3. #3
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    Thank you, i came across this one while reading the docs.......and some more when i SSHed inside.

    ppp0: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST> mtu 1464

    From ifconfig command. I tried to dig inside /etc/ppp but couldn't find any solid answer to where to set the MTU for my PPPoE connection, do i have to do it on the hardware level on my Ethernet settings under advanced in network? is this really the only solution??

  4. #4
    Untangle Ninja Jim.Alles's Avatar
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    My network is extremely slow and some pages won't load. Why?
    Some internet connections have a sub-1500 MTU but don't support automatic MTU path discovery. It is worth a try to manually change MTU on the to something lower, 1492 or even 1450, to see if it has any effect. This is more common with PPPoE connections. It is suggested that if this does not solve the issue you return MTU to the default setting.
    mtu.png
    If you think I got Grumpy

  5. #5
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    Thanks, but i already went through that. Hope to see more control on PPPoE in future updates, atm will give 15.1 and see how it goes. Might be a good idea to move UT to bridge mood with OPSSense infront, will share my experience.

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