47
Field
Description
End Port
End port number.
Protocol
TCP
,
UDP
,
or Both.
Enabled
Checkmark for each port that you want to activate
the IP port filters.
Delete
Checkmark for each port that you want to remove
the IP port filters.
Advanced Port Forwarding Section
This section allows you to run a publicly accessible server on the LAN by specifying
the mapping of TCP/UDP ports to a local PC. This enables incoming requests on
specific port numbers to reach web servers, FTP servers, mail servers, etc. so that
they can be accessible from the public Internet.
The ports used by some common applications are:
•
HTTP: 80
•
FTP: 20, 21
•
Secure Shell: 22
•
Telnet: 23
•
SMTP e-mail: 25
•
SNMP: 161
To map a port, you must enter the range of port numbers that should be
forwarded locally and the IP address to which traffic to those ports should be sent.
If only a single port specification is desired, enter the same port number in the
“start” and “end” locations for that IP address.
Summary of Contents for CH6643
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