We have combined two existing wan networks, we have done this with 1:1 NAT. So every 10.10.10.0/24 address has a 172.16.10.0 address. This works two ways. Please look at the attached design. There is no option to do it with a standard PAT translation you would use if the VCS Expressway is connected to the internet.
At this moment we cannot get the traversalzone working from the 10.10.10.10 VCS Control to the 172.16.10.10 VCS Expressway.
Is this a correct design or do we need to append a dual network interface option to route the traffic?
I hope you can give me some insight to the problem.