Can anyone explain the difference between a value of 2 and a value of 1 in /proc/sys/net/ipv4/conf/*/rp_filter Actually, I notice that kernel 2.2 has a value of 2, in addition to 1, but 2.4 only has a value of 1 (both obviously also allow 0). I don''t see anything in RFC1812 about source validation by reversed path, although it''s a long RFC. :) -- Adrian Chung (adrian at enfusion-group dot com) http://www.enfusion-group.com/~adrian GPG Fingerprint: C620 C8EA 86BA 79CC 384C E7BE A10C 353B 919D 1A17 [rogue.enfusion-group.com] up 60 days, 4:05, 4 users