bad udp cksum 26ff!

Ruslan Ermilov ru at freebsd.org
Mon Nov 28 20:11:49 GMT 2005


On Mon, Nov 28, 2005 at 10:46:38AM -0800, John Palmer wrote:
> I am running FreeBSD 5.4 p8.  I did a tcpdump -vv -i em0.  The output 
> produced
> a "bad udp cksum" with my DNS server.  Does anyone know what it means?  Or, 
> how I can
> correct the problem?
> 
Turn off hardware checksums on em0, to make tcpdump(1) happy.
Harmless otherwise.


Cheers,
-- 
Ruslan Ermilov
ru at FreeBSD.org
FreeBSD committer
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