User's Manual

ftp 21
telnet 23
pop3 110
smtp 25
dns 53
www 80
news 119
gopher 70
Port Numbers for some Internet applications
Local Server: Enter the Local Server’s IP address (for the specified port entered above).
Browse: If DHCP function is enabled, click on “Browse”, the distributed IP Addresses (with
associated computer name) will appear on the screen. You can select the desired IP address
(for the specified port entered above) and add it to the server list.
Figure 10
Add: After finish selecting the port number and the internal server, click Add to save the new
virtual server so that it can take effect after system being rebooted.
Note: Maximum 12 Server entries are allowed and each port number can only be assigned to
one IP address.
Delete: click to select the Port# in the “Server List” and click “Delete” to delete the server
from the list.
Packet Filters
In the Packet Filters setup screen, you can block specific internal users from accessing the
Internet and you can also disable specific Internet services. You can set up the filters through
- 12 -