Short story, for a remote access VPN, i'm trying to auth against an ldap server on the outside of my branch office. The branch office has an ASA 5505 sec plus. The LDAAP server is in a data center behind a 5520, though it is statically nated to an external IP address.
When I try and test auth against my ldap server though, I get an error saying that the ldap server id not respond. however, I can see a tcp reset on the asa, and have captured some packets:
Teardown TCP connection xxx for outside ldap.ldap.ldap.ldap/389 to identity:asa.asa.asa.asa/2807 duration 0:00:21 bytes 286 TCP Reset-I