Well as far as outbound data that should be determined by your routing table if I'm not mistaken. Maybe route -n will give you a clue but I worked with someone on this same issue last night and never got to the bottom of it. Be sure to post what you find :) -Scott -----Original Message----- From: netfilter-bounces@xxxxxxxxxxxxxxxxxxx [mailto:netfilter-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Sven Schuster Sent: Friday, November 05, 2004 7:39 AM To: netfilter@xxxxxxxxxxxxxxxxxxx Subject: 2 NICs on same subnet Hi everybody, I have a problem which I'm quite sure can be resolved easily, but at the moment I'm lacking the "how" :-) I have a machine (RH ES 3) with two Intel e1000 cards attached to a gigabit switch, each interface is assigned an IP address on the same subnet (say 1.2.3.4 on eth0 and 1.2.3.5 on eth1). What's happening is that if a connection to either of these addresses is made, it's always received via the same interface (eth1 most of the time), and the replies go out via this interface, too. But what I'd like is that packets to 1.2.3.4 come in via eth0 and packets to 1.2.3.5 come in via eth1 and that replies from 1.2.3.4 leave via eth0, from 1.2.3.5 via eth1. I've already tried to resolve this issue with arptables, doing arptables -N eth0 arptables -A eth0 -d 1.2.3.4 -j ACCEPT arptables -A eth0 -j DROP arptables -N eth1 arptables -A eth1 -d 1.2.3.5 -j ACCEPT arptables -A eth1 -j DROP arptables -A IN -i eth0 -j eth0 arptables -A IN -i eth1 -j eth1 and additionally limiting traffic in the same way by iptables, but that doesn't work unfortunately. Has anybody done this?? Is a solution to this problem known?? Thanks in advance!! Sven -- Linux zion 2.6.9-rc1-mm4 #1 Tue Sep 7 12:57:19 CEST 2004 i686 athlon i386 GNU/Linux 13:30:13 up 1 day, 16:58, 1 user, load average: 0.08, 0.02, 0.01
