Site to Site VPN between a Cisco 800 router and an ASA 5505

Unanswered Question
Aug 1st, 2012

Afternoon all,

We have a cisco 800 in a remote site which we wanted to use for a site to site vpn.  I thought this would be simple as i have setup ipsec and ssl vpn's before on ASA's without any issues.  This has gone so wrong that i think its best just to start again.  The senario is this:

We have a remote cisco 800 which has a LAN network of 172.20.224.0/20. Right now all the 800 is doing is DSL authentication and letting all traffic out.  Ther server network sits behind an ASA 5505 and has an ip of 192.168.168.0/24.  What i was hoping to get was a vpn tunnel that would say up permanently routing traffic to the server LAN. What i would like is a simple config to put on the 800 and 5505 just to get it working.  I am sure its easy but i have just been looking at it too long.  Any help would be much appricaited.

Graham

I have this problem too.
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Marvin Rhoads Wed, 08/01/2012 - 07:00

It is certainly quite doable but can be a bit tricky if you haven't done it before.

I suggest using Cisco Configuration Professional (CCP - free tool) on the router end and the ASDM VPN Wizard on the ASA end. Those respective GUIs will step you through the setup to get things running.

cmacmillan@cne-... Wed, 08/01/2012 - 08:22

marvin,

Thanks for the reply.  I was actually using these  tools to try and configure it before without any success. I have ran  through the wizards again.  How can i make this a constant vpn session  and not one that is intiated through traffic?

Marvin Rhoads Wed, 08/01/2012 - 08:42

IPsec VPNs always have the requirement for "interesting traffic" to bring up (and, at the time of tunnel exppiration, renew) a VPN.

If you want to keep it up in the absence of end user traffic you can potentially setup a script using IPSLA to send a ping every n seconds.

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Posted August 1, 2012 at 6:21 AM
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