better MTU support...

From: John-Mark Gurney (gurney_j_at_resnet.uoregon.edu)
Date: 09/06/04

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    Date: Sun, 5 Sep 2004 22:04:35 -0700
To: freebsd-net@FreeBSD.org, freebsd-arch@FreeBSD.org

    In a recent experiment w/ Jumbo frames, I found out that sending ip
    frames completely ignores the MTU set on host routes. This makes it
    difficult (or next to impossible) to support a network that has both
    regular and jumbo frames on it as you can't restrict some hosts to the
    smaller frames.

    I now have a patch to ip_output that makes it obay the MTU set on the
    route instead of that of the interface.

    Please review: http://people.FreeBSD.org/~jmg/ip_mtu.diff

    Thanks. 

    -- 
  John-Mark Gurney				Voice: +1 415 225 5579
     "All that I will do, has been done, All that I have, has not."
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  • Next message: Luigi Rizzo: "Re: bridge callbacks in if_ed.c?"