Hi VOLVOCARS team,
Depending on how your network environment is set up you may be able to use a second NIC card on the PAM Appliance to go around the firewall. What you would need to do is connect one of PAMs NICs to the network BEHIND the firewall (this way the traffic wont need to go 'through' it.). Then you would be able to set an "Additional Route" in PAM's network settings which would ensure that all traffic destined for the network behind the firewall is forced through the correct network interface.
Please note that if you are using a VM it is currently not easy to add new NIC cards after the VM is already running and if you try to do so yourself it would likely destroy your PAM VM. If you need to add new NICs to a running VM please review the following tech doc link & contact support for assistance.
Is it possible to add additional NIC cards to a virtual CA PAM appliance?
Hope this helps,
-Christian Lutz