In routed mode ASA is standard L3 device with logical routed interfaces. By defining a static routing to the host or network, route to which the ASA is not directly connected must be defined.
In L3 mode ASA can take part in static and dynamic routing processing. From ASA-OS 9.0
ASA supports:
- Static routing
- OSPFv2,v3
- EIGRP
- RIPv2
- BGP (from 9.2.1)
To configure default Static routing configuration use command as in example below:
route outside 0.0.0.0 0.0.0.0 next-hop
route inside 1.1.1.1 255.255.255.255 next-hop
route inside 2.2.2.2 255.255.0.0 next-hop
where outgoing interface name is used above after “route” keyword