Re: [tcpdump-workers] capturing packets with identical MAC for source and destination

2013-09-03 Thread Gisle Vanem
Lentes, Bernd bernd.len...@helmholtz-muenchen.de wrote: I'd like to capture all packets which have the same MAC-address for sender and destination. But i don't know the MAC which is causing these messages. So i have to use an universal filter. I tried to use tcpdump 'ether[8:6] =

Re: [tcpdump-workers] capturing packets with identical MAC for sourceand destination

2013-09-03 Thread David Laight
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

Re: [tcpdump-workers] capturing packets with identical MAC for source and destination

2013-09-03 Thread Lentes, Bernd
Gisle wrote: Lentes, Bernd bernd.len...@helmholtz-muenchen.de wrote: I'd like to capture all packets which have the same MAC-address for sender and destination. But i don't know the MAC which is causing these messages. So i have to use an universal filter. I tried to use tcpdump