On Friday 11 October 2002 11:45 pm, Mitesh P Choksi wrote: > Dear All, > > How does netfilter work with other protocols apart tcp/udp/icmp? Perfectly well. > I am trying to either block or account IPSec traffic. All you need to do is specify the relevant protocol in your rules, eg: iptables -A FORWARD -p esp ...etc..... You can still specify things like source & destination addresses, but of course there are no port numbers in anything except TCP & UDP. Antony. -- Anyone that's normal doesn't really achieve much. - Mark Blair, Australian rocket engineer