I've configured an ubuntu PC as a router. All TCP based protocols are working. The UDP packets are not getting SNAT-ed. Can someone help with the setup? The relevant iptables setup is: $IPTABLES -A OUTPUT -o lo -s $UNIVERSE -d $UNIVERSE -j ACCEPT $IPTABLES -t nat -A POSTROUTING -o $UPLINK1IF -j SNAT --to $UPLINK1IP $IPTABLES -t nat -A POSTROUTING -o $UPLINK2IF -j SNAT --to $UPLINK2IP $IPTABLES -t nat -A POSTROUTING -o $UPLINK3IF -j SNAT --to $UPLINK3IP The routing setup is: ip route add $UPLINK1NET dev $UPLINK1IF src $UPLINK1IP table uplink1 ip route add default via $UPLINK1GW table uplink1 ip route add $UPLINK2NET dev $UPLINK2IF src $UPLINK2IP table uplink2 ip route add default via $UPLINK2GW table uplink2 ip route add $UPLINK3NET dev $UPLINK3IF src $UPLINK3IP table uplink3 ip route add default via $UPLINK2GW table uplink3 ip route add default scope global \ nexthop via $UPLINK1GW dev $UPLINK1IF weight 1 \ nexthop via $UPLINK2GW dev $UPLINK2IF weight 1 \ nexthop via $UPLINK3GW dev $UPLINK3IF weight 1 -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
