Subject: How do I traceroute through ipf?
To: firstname.lastname@example.org <email@example.com>
From: David Laight <firstname.lastname@example.org>
Date: 01/16/2002 22:43:25
My attempts to traceroute get stomped by my ipf configuration:
% traceroute www.dilbert.com
Jan 16 22:35:24 snowdrop ipmon: 22:35:24.160418 ppp0
@150:4 b 126.96.36.199,33099 -> 188.8.131.52,33435 PR udp len 20 10240
Unfortunately this seems to be a udp packet from a random port to a
random port - and I don't want the filters open that far. I presume the
destination port is really irrelevant and maybe port 9 (discard) would
be more appropriate?