Re: Where is the packet coming from

Ross Jordan <[email protected]>
Newsgroups gmane.user-groups.linux.ottawa.general
Message-ID <[email protected]>
netstat -p option will show you the process that owns a particular
socket.

-Ross

It would seem Mike, on Sun, Jan 24, 2010 at 04:20:33PM -0500, wrote:
> I am trying to locate the source of some ICMP packets being sent to the 
> gateway
> 
> tcpdump   shows this info 
> 
>    xxxx.local > 192.168.1.1: ICMP echo request, id 56179, seq 5, length 64
> 16:02:41.235291 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP 
> (1), length 84)
>     xxxx.local > 192.168.1.1: ICMP echo request, id 56179, seq 6, length 64
> 16:02:42.243203 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP 
> (1), length 84)
>     xxxx.local > 192.168.1.1: ICMP echo request, id 56179, seq 7, length 64
> 16:02:43.251204 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP 
> (1), length 84)
>     xxxx.local > 192.168.1.1: ICMP echo request, id 56179, seq 8, length 64
> 16:02:44.259204 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP 
> (1), length 84)
>     xxxx.local > 192.168.1.1: ICMP echo request, id 56179, seq 9, length 64
> 16:02:45.267203 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP 
> (1), length 84)
>     xxxx.local > 192.168.1.1: ICMP echo request, id 56179, seq 10, length 64
> 16:02:45.677290 IP (tos 0xc0, ttl 64, id 42659, offset 0, flags [none], proto 
> ICMP (1), length 90)
> 
> They seem to come in bunches of 10 
> There are no other users logged in to the machine but me via ssh
> 
> it is an Ubuntu machine 
> 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:04:26 UTC 2009 i686 GNU/Linux
> 
> How can I determine which process is responsible?
> 
> -- 
> Collector of vintage computers http://www.ncf.ca/~ba600
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