I am trying to learn more about tcp/ip and security in general and I am working my way through TCP/IP Illstrated. I have tcpdump set up on a Tru64 UNIX 4.0f box with two nics. When I use the following command I get telnet session info on one interface but not the other:
tcpdump -i ee0 -l -vvv -x -X src 192.168.50.21 and port telnet and dst 192.168.50.23
This command works, but this one doesn't:
tcpdump -i ee1 -l -vvv -x -X src 192.168.51.21 and port telnet and dst 192.168.51.23
When I telnet from 51.21 to 51.23 I don't see any information from tcpdump. When I run tcpdump without any flags all I get are udp broadcast packets. The 51 network is just a X-over cable, there are no other computers so I don't expect to see much, but I should see the telnet session. The 51 network also Full Duplex at 100, could this be the problem? Any advice appreciated.
Thanks,
trev
