DIR-430 RangeBooster G Wireless Router User’s Guide
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Application Rules
Some complex applications exchange the control information on well-known ports
and the control messages may specify some port numbers to be used for the data
exchange. For example, FTP uses TCP port 21 for its control information and uses
different ports for the actual data transfer. There is increase in number of
applications that use one control connection and multiple data connections, where
the end user is asked to provide the TCP/UDP port information. To allow all such
traffic, your Gateway must be configured to work with all the connections that will
be used. More detailed explanation of the configuration follows.
To list port-triggering entries configured in the DIR-430, click on
Advanced
on
the top panel, then click on
Application Rules
on the left hand menu to see the
configuration page as shown above. Each entry can be either edited by clicking
the
icon or deleted by clicking the
icon on the same line.
To add a new entry, click on
Add New Trigger
hyperlink, which opens a
configuration page as shown in below.
Trigger Port
is the standard port for the protocol/application at which the service
is offered. You may select the radio button against drop-down list provided and
select one from it. Or you may choose a custom port number for your custom
application.
Trigger Protocol
can be TCP, UDP, or both.
Source IP
specifies for what host(s) on the local network, the port-trigger has to
be applied. To choose IP address of a single host, select the radio button IP
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