This table specifies the IP addresses and port numbers for sessions requested from outside. If this table is empty and NAT is enabled, only packets for sessions initiated from inside are forwarded. It's similar to the former defined ipNatPresetTable. The IP address and the port number of the internal server can be specified individually for each combination of - protocol (udp/tcp/icmp) - initiating hosts IP address (RemoteAddr, RemoteMask) - destination address or network (ExtAddr, ExtMask) - destination port number or range (ExtPort, ExtPortRange) Entries in the table are created: - either by the IP subsystem itself due to the administratively-defined ipNatPresetTable entries (ipNatPresetOperType_permanent(1)) - or by several subsystems whenever there is a need for such non-static NAT policies (ipNatPresetOperType_temporary(2)) Entries are deleted: - either by the IP subsystem itself due to the administratively-defined ipNatPresetTable entries (ipNatPresetOperType_permanent(1)) - or by several subsystems whenever there is a need for such non-static NAT policies (ipNatPresetOperType_temporary(2)) - or, in case of non-permanent entries, by the administrator.