Black Box 5000 series Reference Manual page 167

4 - Show Bridging Table
The Show Bridging Table option displays all addresses in the Bridge Filter Table, identifies the active/inactive and
permanent/non-permanent addresses, identifies addresses to be filtered if they are a source and/or destination,
describes their location, and gives the total number of address table entries.
Total entries : 20
Address
Start of table
01-80-c2-00-00-01
01-80-c2-00-00-02
01-80-c2-00-00-03
01-80-c2-00-00-04
01-80-c2-00-00-05
01-80-c2-00-00-06
01-80-c2-00-00-07
01-80-c2-00-00-08
01-80-c2-00-00-09
01-80-c2-00-00-0a
01-80-c2-00-00-0b
01-80-c2-00-00-0c
01-80-c2-00-00-0d
01-80-c2-00-00-0e
01-80-c2-00-00-0f
02-44-00-c8-9a-ff
02-44-00-c8-9a-ee
12-34-56-78-99-99
11-11-11-11-11-11
ff-ff-ff-ff-ff-ff
end of table
Address
The sixteen addresses 01-80-c2-00-00-01 to 01-80-c2-00-00-0f are reserved for future use in the 802.1d standard.
The address (ff-ff-ff-ff-ff-ff) is a permanent address that, in its default state (unknown), will not filter any frames.
Only one choice—Filter if Destination is available for this broadcast address. If applied, this will prevent
broadcast frames from being put onto the LAN the bridge is connected to.
The address (12-34-56-78-99-99) is an active, permanent address that resides on LAN050607 (in this example, this
is the LAN the bridge is attached to). Frames to and from this address will not cross the bridge, since they are
identified as both filter-if-destination and filter-if-source. The "(fixed)" descriptor is added when the location of
the address has been identified by management action.
The address (11-11-11-11-11-11) is an inactive, permanent address with a currently unknown location. Frames to
this address will not cross the bridge, since they are identified as filter-if-destination. Note that this address should
be made permanent, because if it is not encountered within the aging-timer interval it will be removed from the
table.
The address (02-44-00-c8-9a-ff) is an active, permanent address that resides on LAN050607 and is allowed to
transmit data on the WAN connection.
permanent option within the Edit MAC Address menu of the MAC Address Filters menu.
The address (02-44-00-c8-9a-ee) is an active address that resides on LAN050607 and is allowed to transmit data
on the WAN connection. Since this address is marked as having WAN access but not marked as permanent, this
indicates that this address has been learned from the local LAN and assigned to have WAN access because it was
one of the first 10 addresses encountered.
Menus Reference Manual: Bridging Set-Up Menu
ALL Known MAC Addresses
Filter If
Active Perm Src
* *
*
* * *
This address is marked permanent because the operator enabled the
WAN
Dest Access Location
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
* LAN050607
* LAN050607
* LAN050607(fixed)
* unknown
Internal
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