Cisco VPN 3.5 via NAT to PIX 515

[admin_2]

Is it possible to use the Cisco VPN 3.5 and go through a router doing NAT and connect to a PIX with IPSEC?

[#2]

You should not have a problem if you are using only NAT. It will not work with PAT however because IPSEC uses protocol numbers 50 and 51, not tcp or udp ports.