Hi<br><br>I'm currently in the process of configuringa DUAL WAN Debian box, that I want to be able to be an IPSEC endpoint to connect to another router. The box has 2 ISP connections (WAN) both of which have static IPs and 1 LAN connection.
<br><br>Following the LARTC howto, I manged to configure the box to quasi load balance between the two WAN connections. I have the standard ip route commands from the LARTC howto and one iptables MASQ command: iptables -t nat -A POSTROUTING -s INTERNALNETWORK/24 -j MASQUERADE
<br><br>However now the issue is howto get Openswan to work with this setup. What I'm aiming for is the IPSEC VPN tunnel to go over one of the WAN links, and if that wan link were to fail to jump over to the other WAN link. I'm not trying to load balance the VPN link over both WAN links.
<br><br>So I figured the first step would be trying to configure openswan to connect on just one WAN link and then see if I could get the VPN tunnel up and working routing traffic. I kinda managed that, the IPSEC tunnel would go up. And the route would was added to the debian box. However I wasn't able to ping from the debian box to the external network even with ping -I INTERNALIP EXTERNALIP, but the external network was able to ping the debian box but no other machines on the internal network. Maybe I'm missing some sort of iptables command ?
<br><br>And the bigger issue is how to get openswan to do the failover, I've been all over google today trying to find some sort of documentation for this kinda of configuration and have been drawing a blank. Does anyone have any links or pointers?
<br><br>Much thanks in advance!<br>