[324] in linux-net channel archive
Re: UDP: bad checksum messages in syslog ?
daemon@ATHENA.MIT.EDU (Arnt Gulbrandsen)
Tue May 16 07:02:48 1995
Date: Tue, 16 May 1995 11:06:38 +0200 (MET DST)
From: Arnt Gulbrandsen <agulbra@troll.no>
To: Gary Anderson <ganderson@clark.net>
Cc: linux-net@vger.rutgers.edu
In-Reply-To: <Pine.LNX.3.91.950515094752.1717B-100000@ganderson-ppp.clark.net>
> May 14 03:07:41 garc kernel: UDP: bad checksum. From 80B75CF1:138 to \
> 80B7FFFF:138 ulen 216
From 128.183.92.241 Port 312 to 128.183.255.255 port 312. What's running
on that port, and what broken operating system is 128.183.92.241 running?
> May 15 06:59:23 garc kernel: UDP: bad checksum. From 00000000:67 to \
> FFFFFFFF:67 ulen 308
This one's more weird. It's right of linux to log it, though, it's
unlikely that a packet claiming to come from 0.0.0.0 can actually be
valid, but the error linux logs isn't likely to be the actual error,
there's some more fundamental error, probably, which you'll probably need
a wizard and his sword (tcpdump) to find.
--Arnt
