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NAT on SIP traffic application layer

Question asked by Dialungana Malungo on Feb 24, 2018
Latest reply on Mar 1, 2018 by Roman Niewiadomski

Hi Mates


I am trying to establish a connection with one of my client’s partner over SIGTRAN and SIP.
In order to enhance the security of my client, we wish to use private IPs in the internal network, and have their Check Point doing NAT for the SIGTRAN and SIP traffic. Unfortunately, this scenario is not working. But if I use Public IPs everything works as normal.
My two questions are: 
1. Is it possible to perform NAT on SIGTRAN/SIP running UDP protocol at the application layer?
2. If yes, is this functionality included in every Check Point appliance, or specific series?