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VPN to 3745 from mobile site via two different networks

nbourke2000
Level 1
Level 1

Hi, wondering if anyone has any ideas on a problem I have.

I have 2 networks, one private and one internet, connecting to 2 interfaces on a 3745 router. I have mobile client routers (netscreens) that are moving from one network to the other.

The problem I have is the tunnel comes up when the client is on internet but when connected via the client network it needs a static route on the PoP pointing to the client network.

Without the static route the SA shows as QM_IDLE but it does not pass traffic. I also have an issue where when the router moves from internet to the private  network the SA stays on the 3745 and causes SPI problems until it clears. Reducing idle-time seems to do nothing to help this.

2 Replies 2

nbourke2000
Level 1
Level 1

I think maybe Reverse Route Injection might be a partial solution?

praprama
Cisco Employee
Cisco Employee

Hi,

So to clarify the problem, we have VPN termination on 2 different interfaces on a 3745, "internet" and "private". When connecting to "internet" all works fine. When connecting to "private", connection is up but no traffic passes unless a static route is added.

Could you elaborate more on what is the exact command you add? It will be much easier to understand if you could post a sanitized config and a topology as well.

Regards,

Prapanch