Hi, sorry for not being specific enough ... One of my machines is RedHat9 the other is fc2 and transfers create UDP packets in the tcpdump on the fc2 machine that look like this: 19:22:17.603860 xx:xx:xx:xx:xx:xx > yy:yy:yy:yy:yy:yy, ethertype IPv4 (0x0800), length 1514: IP 192.168.a.b > 192.168.c.d: udp Transfers between two fc2 machines don't create them Transfers between fc2 and fc3 don't create them Even if I run them both at the same time So I'm trying to work out how to skip them in the tcpdump (yes I guess moving the rh9 box to fc2 or fc3 would work) Or maybe going to fedoralegacy for an nfs update ... nope the only file there in updates is 'nfs-utils-1.0.1-3.9.i386.rpm' which is from the original RH9 updates -Thanks for your help already -Cheers On Sun, 2005-01-30 at 17:16, Harry Hoffman wrote: > tcpdump -i interface -eln not port 2049 and src host \( host1 or host2 > \) and dst host \( host1 or host2\) > > Fill in the interface and host1 and host2 bits with your own local > information. > > HTH, > Harry > > Andrew Smith wrote: > > Hi, > > anyone understand tcpdump well enough to get it to ignore > > NFS UDP packets? > > I want to be able to log all packets from one server to > > another except NFS TCP and UDP packets. > > I'm wondering if this is possible with tcpdump? > > > > -Any help greatly appreciated > > -Cheers > >