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Help Config ASA 5505 to ASA 5510 Dynamic L2L VPN

I am having trouble getting my L2L VPN between two sites working.

Site 1 ASA 5510 - dynamic outside interface IP

Site 2 ASA 550 - static outside interface IP

When I do a static to static it works just fine but since the outside interface will change eventually I would like to set it up dynamically.

Here is what I am using on Site 2

     crypto dynamic-map mobile 1 set transform-set 3DES

Site 1 is using IOS 8.5 so I am using ikev1 config.

Can someone help me understand how to configure the dynamic mobile map for Static ASA to Dynamic ASA L2L

Thanks

3 REPLIES
VIP Green

Help Config ASA 5505 to ASA 5510 Dynamic L2L VPN

What is the rest of your configuration?  Have a look at this example and compare it with yours.

access-list LIST extended permit ip 2.2.2.0 255.255.255.0 3.3.3.0 255.255.255.0

crypto ipsec ikev1 transform-set MYSET esp-3des esp-sha-hmac

crypto dynamic-map MAP 1 match address LIST

crypto dynamic-map MAP 1 set peer 1.1.1.1

crypto dynamic-map MAP 1 set ikev1 transform-set MYSET

crypto map MYMAP 1 ipsec-isakmp dynamic MAP

crypto map MYMAP interface outside

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New Member

Help Config ASA 5505 to ASA 5510 Dynamic L2L VPN

Ok, thanks below is the remainder. I was told that you have to use Easy VPN between ASA 5505 and 5510 in this scenario. Again, the scenario is this. I have a 5510 whose outside interface is connected to a Bell hot spot (temporary until circuit arives) using DHCP which changes a lot. I need to do L2L VPN to an ASA 5505 that is normal config, static outside public IP etc. Both have the same dynamic crypto config. I am not including NAT info as it works fine usin packet trace. Alos, from 5505 if I capture debug and get outside hot spot IP and setup a static L2L it works fine ... well, for a while until the IP changes. so Natting and L2L has been proven out.

ASA 5510

access-list 5505 extended permit ip 10.x.0.0 255.255.0.0 10.x.0.0 255.255.0.0

crypto dynamic-map mobile 1 set ikev1 transform-set 3DES

crypto ipsec ikev1 transform-set 3DES esp-3des esp-sha-hmac

crypto map vpn 1000 ipsec-isakmp dynamic mobile

Help Config ASA 5505 to ASA 5510 Dynamic L2L VPN

Hello Jim,

I actually wrote down a document on my website about it,

I think it would make it pretty clear for you:

Here it its

http://www.laguiadelnetworking.com/vpn-tunnel-dynamic-to-static-router-to-asa/


Cheers,

Julio Carvajal Segura

Looking for some Networking Assistance? Contact me directly at jcarvaja@laguiadelnetworking.com I will fix your problem ASAP. Cheers, Julio Carvajal Segura http://laguiadelnetworking.com
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