Re: tcpdump expression to ignore NFS UDP

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Andrew,

First guess would be that the RH9 box is running NFSV2 and using udp as a transport and the FC2 boxes are running NFSV3 and using tcp as a transport. (I have not verified this)

I haven't used RH9 in a while but you may be albe to set it to use TCP as the transport. Perhaps check in /etc/sysconfig/

Is it not working? Or do you just want everything over TCP?

Cheers,
Harry

Andrew Smith wrote:
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 \( host1 or host2\)

...


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