2 Replies Latest reply: Nov 12, 2012 11:15 AM by mtuma RSS

    Determining ports for Cisco VPN client

    Travler

      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:

      22

      500

      513

      2000-2017

      4000

       

      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?

       

      TIA