[TUHS] [SPAM] Re: SCCS

[Tony Finch]

Dave Horsfall <dave at horsfall.org> wrote:
>
> I was thinking of an intermediate router (probably one that you never knew
> about) corrupting the checksum-less UDP packet, recalculating the Ethernet
> checksum, and your kernel happily accepting it; you now have an application
> that fails for some unknown reason.
>
> Never seen it in practice, but I've heard of it happening.

This paper has some examples:

http://conferences.sigcomm.org/sigcomm/2000/conf/paper/sigcomm2000-9-1.pdf

Tony.
-- 
f.anthony.n.finch  <dot at dotat.at>  http://dotat.at/
Forth, Tyne, West Dogger: Westerly 3 to 5 veering northwesterly 4 to 6. Slight
or moderate, becoming moderate or rough except in west Forth. Mainly fair.
Good.