ZyXEL Communications 110, 1100, 310 7.8 Bridge Interfaces, PORT, Table, LABEL, Table, DESCRIPTION, MAC ADDRESS

	Chapter 7 Interfaces
Table 53 Configuration > Network > Interface > VLAN > Create Virtual Interface (continued)
LABEL	DESCRIPTION
MD5	This field is available if the Authentication is MD5. Type the password for MD5
Authentication	authentication. The password can consist of alphanumeric characters and the
Key	underscore, and it can be up to 16 characters long.
Related Setting
Configure WAN	Click WAN TRUNK to go to a screen where you can set this VLAN to be part of a WAN
TRUNK	trunk for load balancing.
Configure Policy	Click Policy Route to go to the screen where you can manually configure a policy
Route	route to associate traffic with this VLAN.
OK	Click OK to save your changes back to the ZyWALL.
Cancel	Click Cancel to exit this screen without saving.

7.8 Bridge Interfaces

This section introduces bridges and bridge interfaces and then explains the screens for bridge interfaces.

Bridge Overview

A bridge creates a connection between two or more network segments at the layer-2 (MAC address) level. In the following example, bridge X connects four network segments.

When the bridge receives a packet, the bridge records the source MAC address and the port on which it was received in a table. It also looks up the destination MAC address in the table. If the bridge knows on which port the destination MAC address is located, it sends the packet to that port. If the destination MAC address is not in the table, the bridge broadcasts the packet on every port (except the one on which it was received).

In the example above, computer A sends a packet to computer B. Bridge X records the source address 0A:0A:0A:0A:0A:0A and port 2 in the table. It also looks up 0B:0B:0B:0B:0B:0B in the table. There is no entry yet, so the bridge broadcasts the packet on ports 1, 3, and 4.

Table 54 Example: Bridge Table After Computer A Sends a Packet to Computer B

MAC ADDRESS	PORT
0A:0A:0A:0A:0A:0A	2

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ZyWALL 110/310/1100 Series User’s Guide