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Chapter 5 – Configuration Using Web Management Software
Network Setup > DNAT
Network Setup > DNAT
The DNAT (Destination Network Address Translation) process allows placing servers within the protected network and making available for a certain service to the outside world. Normally, the RouteFinder has a network server running in the LAN providing a network service with an address in the specified range, and wants this service accessible to the outside world. The DNAT process running on the RouteFinder translates the destination address of incoming packets to the address of the real network server on the LAN. The packets then get forwarded.
Important Notes:
•A DNAT rule with the
•As the address conversion takes place BEFORE the filtering by the packet filter rules, you must set the appropriate rules in the Packet Filter > Packet Filter Rules menu to let the
Add DNAT Definition
Allow Access From
Select the source network/host to which the DNAT rule will apply.
WAN IP
Select the original target host or network of the IP packets that are to be
External Service
Select the Pre DNAT service. The service must have been defined in the Services section of this software. Example: FTP, TELNET
LAN Dst IP
Select the designation to which IP packets are to be diverted. Only one host can be defined as the Post DNAT destination. Normally, this IP address is the service running on the private LAN segment. Example: host1
Internal Service
Select the service for the Post DNAT service. Example: FTP
Add
Click the Add button to save your choices.
Edit, Delete
After saving the settings, a table is created and displayed at the bottom of the screen. You can edit or delete entries by highlighting the desired entries and clicking either the Edit or Delete button listed under Command.
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