SSL VPN and routing problem

Hi all

I have a strange architecture including VPN and I have a few problems that I am not able to solve:

-J' use the ssl vpn gateway to allocate internal IP addresses of the local network described in the schema (8.8.2.0 or 8.8.3.0 according to the tunnel-group network.

-The purpose is for vpn clients directly access the internal network.

This works very well if there are strictly internal communications within the network. But recently, we have installed an application that needs to access both networks. No problem, I thought, but I was wrong, there seems to be a problem of routing inherent in the architecture in place.

Let me explain the problem:

-When I access the VPN, for example I will gave the 8.8.3.5 ip address.

-Im running the application that needs to open a page on the web server, located at 8.8.2.120

-l'asa receive my tcp syn datagram and forward it directly to the directly connected interface fa0/1 (based on the routing table)

-the web server returns the response, but he sends on its default gateway which is the cisco 6509.

-6509 it sends its vlan svi 2000

- and finally the ASA it receives on its interface fa0/2 but seems he falls as she opened a tcp on fa0/1 connection and receives the response on fa0/2.

I want it's traffic by tunnel to bypass the connected roads and transmit it to a default gateway of tunnel. This would ensure that the path for the request and the response would be the same.

I would like to know if there are orders of debugging for routing decisions validate my theory?

Do you know of any response to solve this problem?

Thanks a lot for your help.

When you configure the TCP State derivation always think ' which way is the SYN package coming?

Routing failed messages always have source and destination, are of course copied the entire message?

BTW, instead of letting clients SSL addresses attributed to vlan2000? Why not give them a separate subnet and the road back via correct interface?

I would also check your config and the routing :-) table

Marcin

Tags: Cisco Security

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