Cisco Systems BC-109 Bedienungsanleitung PDF herunterladen (Seite 51)

NetBIOS Access Filters Example

Configuring Source-Route Bridging BC-159

The show lnm config command displays the logical configuration of this bridge, including all the

pertinent information for configuring this router into LNM:

Wayfarer# show lnm config

Bridge(s) currently configured:

From ring 001, address 0000.0028.abcd

Across bridge 001

To ring 008, address 4000.0028.abcd

From ring 002, address 0000.3000.abc4

Across bridge 002

To ring 008, address 4000.3000.abc4

From ring 003, address 0000.3000.5735

Across bridge 003

To ring 008, address 4000.3000.5735

In this example, six station definitions must be entered at the LNM Station, one for each of the MAC

addresses listed in this sample show lnm config display.

NetBIOS Access Filters Example

The following command permits packets that include the station name ABCD to pass through the

router, but denies passage to packets that do not include the station name ABCD:

netbios access-list host marketing permit ABCD

The following command specifies a prefix where the pattern matches any name beginning with the

characters DEFG. Note that the string DEFG itself is included in this condition.

netbios access-list host marketing deny DEFG*

The following command permits any station name with the letter W as the first character and the

letter Y as the third character in the name. The second and fourth letters in the name can be any

character. This example would allow stations named WXYZ and WAYB; however, stations named

WY and WXY would not be included in this statement, because the question mark must match some

specific character in the name.

netbios access-list host marketing permit W?Y?

The following command illustrates how to combine wildcard characters:

netbios access-list host marketing deny AC?*

The command specifies that the marketing list deny any name beginning with AC that is at least three

characters in length (the question mark would match any third character). The string ACBD and

ACB would match, but the string AC would not.

The following command removes the entire marketing NetBIOS access list.

no netbios access-list host marketing

To remove single entries from the list, use a command such as the following:

no netbios access-list host marketing deny AC?*

This example removes only the list that filters station names with the letters AC at the beginning of

the name.

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Cisco Systems BC-109 Bedienungsanleitung Seite 51