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• Remote access to the configuration interfaces on the Eicon 1530 via the external network can
be disrupted. For example, if you designate a computer to receive HTTP traffic, remote access
to the web configuration interface will be disrupted. However, local access via Ethernet will
still be possible.
• Only one computer on the internal LAN can be designated to receive the traffic for a specific
protocol. This means, for example, you can cannot create multiple web servers; all web traffic
must be sent to one computer on your LAN.
Creating Static NAT Mappings
1.
From the main menu, click on the ‘+’ next to the ‘IP’ link to expand the IP group.
Then click ‘NAT static mappings’.
2.
For each server that you want to define, specify the following parameters:
• ‘Protocol’: The protocol that remote computers will use to access the server.
• ‘Server port’: The port number that the protocol will use on the server.
• ‘Server address’: The IP address of the computer that will act as the server. The server
address must be on the same LAN as the Eicon 1530 (or must be reachable via the LAN).
3.
Click ‘Save’ then ‘Reset’.
Default NAT Server
When the Eicon 1530 receives incoming datagrams containing protocols it is not supposed to
accept, the datagrams are discarded. For example, if an incoming datagram contains an FTP
request, and no FTP server has been defined using a static mapping, the datagram is discarded.
In some cases, you may want to forward all datagrams containing unspecified protocols to a
computer on your LAN. The Eicon 1530 calls this computer the ‘default NAT server’.