User`s guide

NAT Port
Option
• Non-Port-Translation –To keep the source port number unchanged for
TCP/UDP sessions on the specified Port Range. Some special applications
do not allow the source port number to be translated.
• Port Range – The Source Port Number Range for TCP and UDP protocol.
• Specific TCP / UDP Timeout –To define specific Timeout for TCP/UDP
sessions on the specified Port Range.
NAT Alias
For each alias entry the WAN IP acts as an alias of the host with
Local LAN IP accessing the Internet via the specified WAN port
for the specified protocol packets, i.e. 1-1 NAT.
• Enable – To activate or deactivate current entry.
• Local LAN IP –The IP address of the host in LAN that wants to use the
specific WAN IP as its source IP.
• WAN IP – The IP address used as the source IP of the packets sent out from
the specified host.
• Protocol –The protocol that the current rule is applied to.
• WAN – The WAN port that the current rule is applied to.
• Allow Inbound (Virtual Server) – Enable check box, can be used as a virtual
server through alias WAN port.
NAT Alias
List
The List shows NAT Alias that is currently defined.
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