I currently have one ASA 5510 sitting behind one of my edge routers and I'd like to also use this same device to firewall another WAN link. Currently the 2 networks behind each WAN link can talk to each other through our core router. Is this doable? Would I need to configure 2 inside interfaces so that traffic destined for either of those WANs have their own gateway? Can this be accomplished with just one inside interface? The end result will look something like this (Ip ranges are just examples):10.1.1.0/24 WAN B = = Router B = = ASA 5510 = = Router A = = WAN A 18.104.22.168/24 = = Core Router 192.168.1.0/24 Internal Network
It's all static routing here.