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I'm trying to create a policy to allow specific workstations to connect through a Cisco VPN client to one of our partner businesses. The client is:
Cisco Systems VPN Client Version 4.8.01.0300
It is using "Enable Transparent Tunneling" by "IPSec over UDP ( NAT / PAT )"
My problem is determing exactly which UDP ports this uses. Based on info from our partner site, I've attempted the following UDP ports to no avail:
However, if I set the policy to allow ALL UDP ports (1-65535) then the connection is successful.
Is there an easy way of discovering which ports are actually being used?