Dual ISP failover on ASA, backup is DHCP assigned.

[Amjad_Khan]

Hi folks,

Apologize in advance if this is not the right forum I posting this in as this is a my first post.

I have an ASA5515. Current primary ISP (outside) is a static IP. We are in process of installing a backup using a wireless modem that gives out IP using DHCP. When I try to set a secondary static route for ATTbackup it asks for Gateway which I don't have because it uses a different gateway. My question is how I can set this up. Here is my current configuration so far:

interface GigabitEthernet0/1
nameif outside
security-level 0

dhcp client route track 1
ip address 75.X.X.X 255.255.255.248
!
interface GigabitEthernet0/2
nameif ATTbackup
security-level 0
dhcp client route distance 10
ip address dhcp setroute

route outside 0.0.0.0 0.0.0.0 75.X.X.X 1 track 1

track 1 rtr 1 reachability

sla monitor 1
type echo protocol ipIcmpEcho 4.2.2.2 interface outside
sla monitor schedule 1 life forever start-time now

Thanks.

[Dennis Mink]

your wireless router will need an IP address in the ip address 75.X.X.X 255.255.255.248  range. because that is what your outside interface is in.  and then use a static route on your ASA to point to the wireless router.