a00fff17_Point_to_Point_on_PIX__Description
[Command] sysopt ipsec pl-compatible [Description] 
Enables IPSec packets to bypass both NAT and the ASA features. This also allows incoming IPSec tunnels to terminate on an inside interface. For a tunnel crossing the Internet to terminate on the inside interface, the inside interface must have a routable IP address.
Point-to-Point on PIX
Description