I know that I cannot create a outbound PPTP-based VPN connection from behind my PAT firewall (Cisco PIX) without creating static mappings between the internal (private) and an external (public) address. Obviously this isn't feasible, since I would need to have a separate public address for everyone who needs/wants to make an outbound VPN connection, and I'd need to setup static mappings for each address.
However; can anyone confirm or deny whether this is possible when using IPSec to create the firewall connection?
Basically, I would like to have a way to allow people from behind my firewall to make a VPN connection to another office, ideally without 1-1 address mapping. I don't want to have a LAN-LAN VPN tunnel, I want it PC-LAN.