Hi people/Daniel, I have been trying various set of rules in various table in order to have packets go over the right link. ie. packet's src add should match outgoing link's ip address. YET, there are some packets that always tend to go over the wrong link and thus causing ip address change. They mostly seem to be ICMP Destination Unreacheable messages or DNS queries. I tried out the rules that Daniel Chemko so generously had provided me with...and they don't seem to work. I am probably not doing something right. I just tried the following rules with no luck: iptables -t mangle -A PREROUTING -j CONNMARK --restore-mark iptables -t mangle -A PREROUTING -m mark ! --mark 0 -j ACCEPT iptables -t mangle -A PREROUTING -m mark ! --mark 0 -p icmp -j MARK --set-mark 1 iptables -t mangle -A PREROUTING -m mark ! --mark 0 -j MARK --set-mark 2 iptables -t mangle -A PREROUTING -j CONNMARK --save-mark iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE ptables -t nat -A POSTROUTING -o ppp1 -j MASQUERADE Are these rules supposed to create 2 routing tables???? If they do, I don't seem them? This is what I see: [ ]# ip rule list 0: from all lookup local 32766: from all lookup main 32767: from all lookup 253 I even tried the ROUTE rule separately with no luck (still ip changes): iptables -A POSTROUTING -t mangle -p icmp -j ROUTE --oif ppp0 Not to mention I initially tried MASQUERADING and that is when Daniel told me that there were a few problems with Masquerading. I am to the point of pulling my hair.... thus... any help whatsoever would be appreciated. Thanks guys, Dravya
