tcpdump mailing list archives

Re: capturing packets with identical MAC for sourceand destination


From: "David Laight" <David.Laight () ACULAB COM>
Date: Tue, 3 Sep 2013 15:05:29 +0100

currently we are expierencing bad network performance. And in the log of a linux-server i have a lot
of these messages:

Sep  2 10:16:08 pc60181 kernel: [4286760.823563] br0: received packet on eth0 with own address as
source address

Since you know your own MAC address, you can just filter for it directly.

However I think you'll find that it is a broadcast packet and that you
have a loop in the network somewhere.

A simple trace of 'everything' will probably show bursts of repeated packets.

        David



_______________________________________________
tcpdump-workers mailing list
tcpdump-workers () lists tcpdump org
https://lists.sandelman.ca/mailman/listinfo/tcpdump-workers


Current thread: