Bridging

2-52 Special Filter Databases

6. Click on OK to save the changes you have made and exit the Special
Database Filter window.
Changing the Receive Ports
You can set the receive ports in the Special Filter Database window either before
or after you deÞne a Þlter. These are the ports at which the frame must be received
for the Þltering parameters to apply. The default selection is Port 1.
To designate a receive port, click on the receive port icon ( ) for the Þlter. As you
click on the icon, it will cycle though the ports (e.g., 1, 2, 3, 4, etc. until the end of
the interface table, and Ò*Ó). When you have selected a port, you can set the port
Þltering action that will apply when the packet is received at that particular port
(refer to the following section for further information).
In this fashion, you can specify all receive ports at which the packet must be
received and the designated Þltering action which will apply when the packet is
received at each port. Selecting Ò*Ó (promiscuous or any port) will apply the Þlter
and its speciÞed Þltering action to all ports on the device.
Remember that you can only view a single receive port and its Þltering action. To
check all receive ports for a single Þlter, you must click on the receive port icon to
cycle through the series of ports.
Changing the Port Filtering Action
Use the port icons under the Port Filtering section of the Special Filter Database
window to determine the port Þltering action associated with the Þlter when it is
received at a speciÞed receive port. You can select the port Þltering action either
before or after deÞning the Þlter. By default, the Þltering action is initially not set
at any port. You must click on a port to invoke the Þltering action symbols. After
the Þrst port is set (either to Þltering or blocking), the remaining ports in the Þlter
are set to blocking until you specify otherwise.
Setting the Port Filtering Action
When you set the port Þltering action for a Þlter, you determine whether the port
will block or forward packets which match the ÞlterÕs speciÞcations. To set port
Þltering action, click on the desired port icon (e.g., 1, 2, 3, 4, 5, 6, up to 32) to toggle
from blocking () to forwarding ( ) or vice versa.
NOTE
If you do not wish to save what you have entered in the Special Database Filter Window,
click on the Cancel button. This will cancel what you have entered into this window and
return you to the Special Filter Database window.