I've two 2800 series routers, one ADSL and one Leased Line. Two 515E Firewalls connected to each one. They are then connected to an L2 switch (2960G) for aggregation to two L3 Core switches (3750). I want all my traffic to use ADSL and all my mail (smtp) traffic to use LL. Do i need policy based routing here or just specifying the default gateway for the mail servers to be the firewall connected to the LL router.
Suggestion will be appreciated.