Mitel 1000 Owner's Manual page 139

Select an interface from the drop down list
Enter an IP address and subnet mask, or enter the first and last IP
addresses in the range
Select "Add Global Address Pool"
Reserved Mappings
Static routes can be defined between an external IP address and
internal IP addresses.
Select "Advanced NAT Configuration ..."
Select "Add Reserved Mapping ... "
The following screen is displayed
Enter the following parameters:
Global IP address This is the public IP address assigned to the
WAN interface
Internal IP This is the internal IP address of the server on
Address the LAN
Transport Type Select a protocol from the drop down list
External Port A port or port range can be defined for the
Range external IP address
Internal Port A port or port range can be defined for the
Range internal IP address
Select "Add Reserved Mapping"
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