PointRed Telecom Ltd. MCRD-2458 Manuale Utente

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A bridge is a LAN interconnection device that operates at the data link layer 
(layer 2) of the OSI reference model. It may be used to join two LAN segments 
(A, B), constructing a larger LAN. A bridge is able to filter traffic passing between 
the two LANs and may enforce a security policy separating different work groups 
located on each of the LANs. Bridges were first specified in 

IEEE 802.1D

 (1990) 

and later by ISO (in 1993). 

Add New Bridge 
To create a new network bridge interface 

1.

Click the Add new Bridge button. The Insert New Bridge dialog box 
appears.

2.

Type the bridge name in the box, then click the Submit button. The bridge 
name appears in the Network Interfaces Tree.

Note: The bridge name must begin with the string “br”. There is no limitation to the 
rest of the name.

  To 

delete 

a 

bridge 

1.

Select the bridge in the Network Interfaces Tree

2.

Click the Delete Bridge button in the Network Bridge Commands Pane

Insert Interface 
To insert an interface as a ‘slave’ under a bridge 

1.

In the Network Interfaces Tree, select an interface to become the slave. 

2.

Click the Insert Interface button. The Insert Interface to Bridge dialog 
box appears. 

3.

In the Select Bridge list box, select the desired bridge. 

4.

Click Submit. The tree is rearranged to show the interface as a slave to the 
bridge.

Figure 24. Inserting an Interface under a Bridge  

Remove Interface 
1.

Select the interface in the Network Interfaces Tree. 

2.

Click the Remove Interface button.