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■ MAC This item allows network administrators to use the MAC addresses of PCs to
restrict users/computers from accessing the specific application you set in this rule.
A MAC address is short for Media Access Control Address and is a hardware
address that uniquely identifies each node on network. Enter the MAC addresses of
the computers you wish to allow/block in each field.
■ IP Address This item allows network administrators to use IP Address of PCs to
restrict users/computers from accessing the certain applications you set in this rule.
Enter the range of IP addresses if you want them to be included in a controlled group
with the same access limitation.
Note: If you set both "MAC" and "Source IP" in one rule, the PCs which have the
MAC addresses matching in "MAC" field and their IP addresses matching
in the "Source IP" field will be allowed/blocked for certain applications.
■ Protocol Select the protocol type as "TCP" or "UDP" from the drop down list. If
you are not sure which one to choose, select "Both".
■ Port Number Enter the range of port numbers that are used by the applications you
wish to be blocked. For example, port 80 usually is used as destination port number
when you access a web page. Note that if you don't enter any value in the "MAC"
and "Source IP" column but enter the port number, for example "80", in "Destination
Port", it means all the users/PCs will be allowed/denied access to certain applications
related to this port, for example "web browsing".
■ Summary Click this button to display a summary page showing all the current rules
you have set.
Click the "Apply" button after making any changes, or click the "Cancel" button to exit
the screen without saving any changes.
Note: To allow or deny access by URL, refer to the section on URL Filter.
Rev.1 - YML686
NB5580/W User Guide
www.netcomm.com.au
Page 33