If you use CommuniGate Pro in a corporate environment, most of your users will connect to the Server from the corporate LAN(s).
Use the WebAdmin Interface to specify your LAN Addresses. Open the Network pages in the Settings realm, then open the LAN IPs page.
The LAN IP Addresses table initially contains the addresses the CommuniGate Pro software retrieved from the Server OS configuration. Correct this list to include all LAN (local networks) the CommuniGate Pro Server needs to serve. The Network Address Lists section explains the list format.
Usually, you want all E-mail and Real-Time (VoIP/IM) clients connecting from the LAN addresses to be able to relay E-mails and Signals to any Internet destination. In this case you may want to include the LAN addresses into the Client IP Addresses list.
The list of LAN IP Addresses is used to support Real-Time (voice, video, etc.) communications, so the CommuniGate Pro Server knows which addresses are belong to NAT'ed ("local") addresses, i.e. which addresses cannot be contacted directly from the Internet.
Use the Server LAN IP Address setting to select the Server own IP Address the Server OS uses to communicate with computers on the LAN.