Tcpdump rules !
Tcpdump is clearly one of my favorite tool. Here a little example to filter the traffic of my OSPF router.
tcpdump -i eth0 ip[9] == 89
And the result:
12:43:48.219432 IP p2b.soif.fr > OSPF-ALL.MCAST.NET: OSPFv2, Hello (1), length: 48 12:43:48.560817 IP wrt.soif.fr > OSPF-ALL.MCAST.NET: OSPFv2, Hello (1), length: 48
Wonderfull no ? :)
- Stateless vs Statefull firewalls
- Arpwatch on WRT54G
- Last PPP Ip .
- Send hand-crafted Ethernet Frames in Python (ARP for example)
- Raw Network access in Python
admin February 6th, 2005
- Utils
- Comments(2)
See also TCPWatch, by Shane Hathaway, which is invaluable for debugging HTTP problems:
http://hathaway.freezope.org/Software/TCPWatch
Yes, TCPWatch is a great tool too. I use it to debug HTTP server a couple of times, and this is a incredible feature.
– Enjoy Networking ?