Static Address Mapping, also known as Static Mapping, Mapping or Outbound Mapping, allows an internal IP address or subnet to be statically mapped to an external IP address during Network Address Translation. By default, all IP addresses on the Protected Networks and PSNs are dynamically assigned to the primary IP address of the outbound network interface. Static Address Mapping is used when it is desirable to statically assign the IP address used in the Network Address Translation.
To use the Static Address Mapping facility, you must first assign at least one IP alias to the desired outbound network interface (External Network interface or PSN interface).
The target of a map definition must be an IP alias.
Mapping is only associated with outbound packet flow.
Map definitions may be for a single host or a subnet.
See individual product guides for the number of Static Address Maps available on a specific GTA Firewall.
Static Address Mapping is allowed in these cases:
From a host or subnet on the Protected Network to an IP alias assigned to the PSN interface.
From a host or subnet on the Protected Network to an IP alias assigned to the External Network interface.
From a host or subnet on the PSN to an IP alias assigned to the External Network interface.