3Com 3CRWE754G72-A Network Router User Manual


 
52 CHAPTER 5: ROUTER CONFIGURATION
Special Applications Figure 40 Special Applications Screen
Special Applications let you specify specific ports to be open for specific
applications to work properly with the Network Address Translation (NAT)
feature of the Router.
A list of popular applications has been included to choose from. Select
your application from the drop-down list at the top of the screen. Select
the row that you want to copy the settings to from the drop-down list,
select the row you want to copy to, and then click Copy To. The settings
will be transferred to the row you specified. Click Apply to save the
setting for that application.
If your application is not here, you will need to check with the application
vendor to determine which ports need to be configured. You can
manually input this port information into the Router. To do this:
1 Specify the trigger port (the one used by the application when it is
initialized) in the Trigger Port column, and specify whether the trigger is
TCP or UDP.
2 Specify the Public Ports used by the application, that will need to be
opened up in the firewall for the application to work properly. Also
specify whether these ports are TCP or UDP.
3 You can temporarily enable or disable each entry in the table by checking
or unchecking the Enabled checkbox.