Thanks,
But now I am having issues where the tunnel goes up and down and no traffic is going through the IPSEC tunnel.
screenOS 1 <-> Cisco PIX <-> screenOS 2.
Both screenOS has NAT-T enabled
Connection terminates at both screenOS .
Tried enabling and disabling Monitoring and Optimization.
Cisco PIX is used to route traffic between the 2 screenos gateways.
I think there is something wrong on the cisco PIX. However the customer(cisco PIX) is allowing all traffic. do you know if Cisco PIX require NAT-T enabled as well or something additional. Any clue would help.
screenOS2(ns5gt) used to be using ADSL1 interface and it was working fine. We swap the ASDL line to use a fixed ethernet connection with dedicated WAN IP and plugged it into the UNTRUSTED port and modified the phase1 and 2 to use the untrusted port and setup return route.
screenos1 <-> ADSL <-> screenos2 (Works fine)
screenos2 <-> cisco PIX <-> screenos2 - (tunnel unstable and no traffic goes through tunnel)
On both the screenos logs you can see tunnel is UP sometimes, it is like yoyo UP and DOWN.