SIte to Site VPN using PEER FQDN ratehr than ip address

Both of them are dynamic public address?

ASA is static

You would need to enable DNS lookup on the ASA. This way the ASA can lookup what vpn.test.com is.

dns domain lookup <interface where DNS server is>
dns name-server <ip address of DNS server>

The ASA does not support DDNS in simple L2L.
Just go to the ASA and type:
#tunnel-group ?

You will see the explanation of the NAME parameter...
but what you can do is this:

name 1.1.1.1 vpn.test.com
#tunnel-group  vpn.test.com type ipsec-l2l

In the other hand the  Router supports DDNS Please take a look:
http://www.cisco.com/en/US/docs/ios/12_3/12_3y/12_3ya8/gt_ddns.html

http://tools.cisco.com/search/JSP/search-results.get?isFormSubmit=true&strqueryid=2&websessionid=X3s2tIU5vycl15j9Ghv9LVn&strCurrentSimilarSearchBreadCrumb=&strCurrentSelectedModifierValues=&strPrevQuery=ddns&strQueryText=ddns&country=US&language=en&profile=enushomesppublished

If your ASA has a static address and "test.vpn.com" already points to that static addres, you can set up a standard VPN group like you would use to connect to with the Cisco VPN client software on the ASA, then use the "Easy VPN" feature of the 1811 route to have the router connect to test.vpn.com as if it were using the Cisco VPN Client software.

(Cisco does not allow dns names to be used in a Site2Site VPN)

Cisco does not allow dns names to be used in a Site2Site VPN ? I am surprised ....Does Juniper/Checkpoint support this  feature ?

Thanks

Hi

You able to make l2l VPN without static adress, but only the endpoint able to make l2lvpn!!!!!

On the center side you use public key for 0.0.0.0
and the endpoint add the center side to crypto map!

Best Regards,
Istvan

i am looking for bidirectional

Not sure about Juniper/checkpoint but dns spoofing makes using DNS names in a Site2Site insecure (or so says Cisco) so they dropped this ability.

The EasyVPN is bidirectional and is was created for your scenario, the router will reconnect to the ASA as a bidirectional VPN Client upon booting.

Can you show me how to use dns names in EasyVPN scenario?