Black Box 5000 series Reference Manual page 202

Menus Reference Manual: Edit MAC Address Filter Menu
The Filter If Source option toggles between Enabling and Disabling of the Source Filtering (Forwarding) feature for the
specified address.
Default: [disabled]
Considerations:
When the Filter Operation is set to positive, enabling this option will prevent frames from this address from
crossing the bridge/router to the associated LAN. Once Filter if Source is chosen, the Permanent value is
set to [enabled]. This may be toggled back to [disabled] if a non-permanent entry is desired.
When the Filter Operation is set to negative, enabling this option will allow frames from this address to cross
the bridge/router to the associated LAN. Once Forward if Source is chosen, the Permanent value is set to
[enabled]. This may be toggled back to [disabled] if a non-permanent entry is desired.
4 - Filter (Forward) If Destination
The Filter If Destination option toggles between Enabling and Disabling of the Destination Filtering feature for the
specified address.
Default: [disabled]
Considerations:
When the Filter Operation is set to positive, enabling this option will prevent access to this address from
another LAN station located across the bridge/router. Once Filter if Destination is chosen, the Permanent
value is set to [enabled]. This may be toggled back to [disabled] if a non-permanent entry is desired.
When the Filter Operation is set to negative, enabling this option will allow access to this address from
another LAN station located across the bridge/router.
Permanent value is set to [enabled]. This may be toggled back to [disabled] if a non-permanent entry is
desired.
5 - Permanent
The Permanent option toggles between Enabling and Disabling of the Permanent Address Value.
Default: [disabled]
Considerations:
This Value must be [enabled] if you want to make the Address Permanent. If [enabled] the Address will not
be subject to removal by the expiration of the Aging Timer or the Clear Filter Table option (found in the
Bridging Set-Up Menu or the MAC Address Filters Menu).
If a station is not expected to move, making the address Permanent will offer a slight increase in
bridge/router performance.
6 - Remove
Select the Remove option to remove the specified address (permanent or non-permanent). Internal and system-supplied
addresses cannot be removed.
Once Forward if Destination is chosen, the
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