Hans du Plooy wrote: >My feeling is that the mailserver tries to respond to the connection via >it's default gateway. How do I tell it to respond via the interface >that the connection was made on? > > You need to set up routing tables with the ip(8) tool. That is in the iproute package. You essentially need to set up a new routing table that has its own default route for each interface. For example, I have,
# ip rule 32762: from <ext-ip-addr1> lookup AAA 32763: from <ext-ip-addr2> lookup BBB 32764: from 10.10.10.10 lookup AAA 32765: from 10.10.10.11 lookup BBB 32767: from all lookup default (some names and IPs were changed :). # ip route list table BBB 192.168.3.0/24 dev eth2 scope link 10.0.0.0/8 dev eth1 scope link default via XYZ dev ppp1 # ip route list table AAA 192.168.3.0/24 dev eth2 scope link 10.0.0.0/8 dev eth1 scope link default via XYZ dev ppp0 This enables me to have connections coming from exp-ip-addr2 to receive a response though ppp1. extp-ip-addr1 gets response on ppp0. I needed two IPs on one host for the DMZ (10.10.... network) because I lose routing information after the packet leaves me and all replies from DMZ would go through ppp0 (deafult routing table). >Any links to relevant documentation would be appreciated. > > Check out the Advanced Routing HOWTO, http://www.ibiblio.org/pub/Linux/docs/HOWTO/other-formats/html_single/Adv-Routing-HOWTO.html - Adam -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
