# Filtering

Port>Configure>Filtering

To display the Filtering dialog box, from which you can view existing filters and configure a new MAC or Protocol Filter for a Token Ring port, from the Config Port window, select Filtering from the CATEGORY popup menu.

By default, protocol filters are displayed.

The following information is displayed:

Value (filterProtocolValue)

Protocol class being filtered.

Type (filterProtocolType)

Method in which the port handles frames that fall into the protocol class selected. Possible values are deny, permit, and invalid.

Click Create to configure a new protocol filter or click Cancel to close the dialog box. To delete a filter, select the filter and click Delete. Click Print to print the contents of the dialog box.

To view MAC Address filters, select MAC Address Filters from the CATEGORY popup menu.

# Creating a Protocol Filter

Port>Configure>Filtering>Create

The Create Protocol Filter dialog box allows you to define protocol filters for this port.

This dialog box displays the following information:

Value (filterProtocolValue)

Protocol class to be filtered. To select a value, click the arrow, and select a class from the popup menu.

Type (filterProtocolType)

Method in which the port handles frames that fall into the protocol class selected.

deny—Block all frames in this protocol class.

permit—Allow all frames in this protocol class.

invalid—To turn off the filter without deleting the definition.

Click Apply to add the filter, or click Cancel to close the dialog box without making any changes.

# MAC Address Filters

Device>Configure>MAC Address Filters

To display a list of MAC filters or create a new MAC address filter, select MAC Address Filters from the CATEGORY popup menu.

The following information is displayed:

Address (filterMacAddress)

Filter MAC address. If this value equals the source or destination MAC address, a match occurs. If a match occurs, the packet is dropped and a value of deny is specified. The packet is also dropped if a match does not occur and at least one MAC address filter is specified with a value of permit.

Type (filterMacType)

How the port handles frames that contain the specified MAC address. Possible values are deny, permit, and invalid.

Click Create to configure a new MAC address filter or click Cancel to close the dialog box. To delete a filter, select the filter and click Delete. Click Print to print the contents of the dialog box.

# Creating a MAC Address Filter

Device>Configure>MAC Address Filters>Create

The Create MAC Address Filter dialog box allows you to define protocol filters for this port.

This dialog box displays the following information:

Card (filterMacModule)

Number identifying the card on which the port is located.

Port (filterMacPort)

Number of the port for which you are creating a protocol filter.

Value (filterMacAddress)

MAC address contained in the frames to be filtered.

Type (filterMacType)

How the port handles the frames that contain the specified MAC address.

deny—Block all frames that contain this MAC address.

permit—Allow all frames that contain this MAC address.

invalid—Turn off the filter without deleting the definition.

Click Apply to add the filter, or click Cancel to close the dialog box without making any changes.