Getting error via connecting Nortel Client on R65

[brijesh_techno]

Hi,
Previously I was using R55 on NSF 6416, recently I have upgraded from R55 to R65 with HFA40. After the upgradation one of my project is not able to connect costomer via Nortel VPN clinet. In traker I am getting the reverse traffic from customer VPN gateway(Cisco) IP on port 50 which is getting drop on my side.

It was working without any issue before upgradation.

Any one can suggest me how to resolve this.

[melipla]

Try an allow rule:

Source: <VPN Gateway IP>
Destination: <Host IP>
Service: IPSEC group