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As an example, if you want to setup a web server on a PC with LAN IP
address of 192.168.1.88, select HTTP as Service and enter 192.168.1.88
as the Server IP Address. Otherwise if the service you want to setup is not
available from the Select a Service drop-down list, you can define your
own Virtual Server.
Custom Server:
Define a name for the server type you wish to configure.
Server IP Address:
Key in the LAN IP address of the PC you wish to setup as Virtual Server.
External Port Start and External Port End:
Specify the port/the range of the port numbers used by this service.
Protocol:
Select from the drop-down list whether you are using TCP or UDP protocol
type.
Internal Port Start and Internal Port End:
Key in the relevant value(s) if the external port/range of ports needs to be
converted to a different port number/range of port numbers before being
forwarded to the LAN server.
To delete a Virtual Server entry, use the Remove button to delete the
corresponding entry from the table list.
Click Save/Apply to take effect the settings.
5.4.3.2
Port Triggering
Some applications require that the specific ports in the Lynx L-220 firewall
be opened for access by the remote parties. For instance, assuming an
application uses port 25 for requests and port 113 for replies. If a PC on the
LAN connects to port 25 on a remote server hosting this application, using
Port Triggering on the router, incoming connections to port 113 (from the
remote server) could be redirected to the PC which initiated the request. A
maximum of 32 port triggering entries can be configured.
