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Chapter 2: WEB Configuration
Illustrations contained in this document are for representation only.
42
Fig. 20
5.
5. 5.
5. Forward
ForwardForward
Forwarding
ing ing
ing
For LAN WAN communications, the gateway normally only allows you to originate an IP
connection with a PC on the WAN; it will ignore attempts of the WAN PC to originate a connection
onto your PC. This protects you from malicious attacks from outsiders. However, sometimes you may
wish for anyone outside to be able to originate a connection to a particular PC on your LAN if the
destination port (application) matches one you specify.
This page allows you to specify up to 10 such rules. For example, to specify that outsiders should have
access to an FTP server you have running at 192.168.0.5, create a rule with that address and Start Port
=20 and End Port =21 (FTP port ranges) and Protocol = TCP (FTP runs over TCP and the other
transport protocol, UDP), and click Apply. This will cause inbound packets that match to be forwarded
to that PC rather than blocked. As these connections are not tracked, no entry is made for them in the
Connection Table. The same IP address can be entered multiple times with different ports.