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SubjectRe: UDP bugs
   Date: 	Sun, 13 Dec 1998 13:50:25 +1100
From: Richard Gooch <>

>From this it appears Linux 2.1.x has an output limit of 65507
>bytes and an input limit of 65476 bytes. Further, Linux 2.0.36 has an
output limit of 65507 bytes (same as 2.1.x) and an input limit of
51792 bytes.

Are you considering the size of IP and UDP headers? Those must be
factored in.

Packets which exceed the maximum size go to the big bit bucket in
the sky. RIP. This is a problem for programmes which "know" that
they can send 65535 byte packets over UDP.

Programs pushing such large UDP frames over ethernet don't "know" very
much IMHO....

David S. Miller

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