How do I route traffic from Multiple public IPs on a 5505 to another ASA 5508x?

[PremierGold]

I have a ASA 5505 and ASA 5508x. In reference to the attached diagram. I am looking to fail-over a Public IP B to ASA 5508x through ASA5505. The only reason for this configuration is the ASA5505 is with ISP A and with out paying a huge amount we can an additional IP address for a fraction of the cost. The ASA5508x is with ISP C.

How do I program the ASA5505 to forward all traffic that comes from Public IP B to ASA5508x?

[Daniele Giordano]

I don't understand if you want permanently forward the traffic to 5508.

If yes, you can add a static route to forward IP B subnet to 5508.

Something like

route dmz IP B SUBNET  ASA5508 IP 1

Regards.

[PremierGold]

Hey @Daniele Giordano,

The idea is for all traffic coming through Public IP B flow to ASA5508x to Private IP Network A. For the ASA5508x this link to the ASA5505 would be a fail-over if PUB IP C were ever to go down. Yes it would be permanent.

In your example

route dmz IP B SUBNET  ASA5508 IP 1

IP B SUBNET = x.x.x.B 255.255.255.0 (is this correct? since this is a single ip)

Thanks for your help