ASA VPN and ISA Firewall

[Millwall21]

Hi,

We have a ASA5505 for VPN access and an ISA 2006 server for our firewall which is also the internal gateway.

Our internal network is 192.168.254.0 and the VPN pool is 192.168.253.0. We can't access any device on the network when VPN'ing in that has the default gateway of our ISA server, but if the system has the default gateway of our ASA5505 it works fine. So is a routing issue I guess..

Do we need to amend a route on the ASA or the ISA, I've tried both I think but still unable to access anything on the 192.168.254.0 network if the device has its gateway as ISA while connected via VPN.

I'm guessing it's on ISA but just can't work out what to do?

Any advice greatly received.

Thanks

 

[LarryTheCucumber]

It should just be a route from the ISA server to 192.168.253.0 with the ASA as the gateway.

 

[Millwall21]

Yep figured I it out this morning Larry, I added a persistance static route on ISA and the other servers we need to access.

route add -p 192.168.253.0 mask 255.255.255.0 192.168.254.247 (address of the asa)

Thanks