Features of the Axxon PSIM distributed system operation using NAT

If the distributed system is built on the basis of a network in which servers and/or clients are behind NAT, then we recommend using VPN technology for such system operation. However, this isn't a requirement: you can configure the distributed architecture in the usual way as described in Configuring the interaction of distributed system components. In this case, make sure to specify the server's external IP address for the client-to-server connection and don't specify the client IP address.

When you configure NAT, you must open the ports used by running Axxon PSIM modules, see The list of TCP ports used in Axxon PSIM. Moreover, you must open the ports that are used by MS SQL Server for database synchronization.

If the ONVIF IP camera is behind NAT, then proper operation of this camera isn't guaranteed. This limitation is due to the special features of the ONVIF protocol.