I have just stood up an ASA 5520 on one of my companies internal networks. The idea is to have it sit in front of an internal proxy server that directs traffic to other internal networks. The networks the proxy allows access to are restricted so therefore I need to set up authentication via our companies LDAP on the ASA. The ASA also needs to foreward all traffic it recieves directly to this proxy once authenticated. Is this a solution the ASA can handle? If so, what route should I take to getting it all set up?