Chapter 10 Interfaces
ZyWALL USG Series User’s Guide
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10.10 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
Add Click Add to create an IPv4 Address, an IPv4 CIDR (for example, 192.168.1.1/24) or an IPv4
Range (for example, 192.168.1.2-192.168.1.100) as the target IP address. The Zyxel Device
answers external ARP requests only if they match one of these inputted target IP addresses.
For example, if the IPv4 Address is 192.168.1.5, then the Zyxel Device will answer ARP
requests coming from the WAN only if it contains 192.168.1.5 as the target IP address.
Select an existing entry and click Remove to delete that entry.
Related Setting
Configure WAN
TRUNK
Click WAN TRUNK to go to a screen where you can set this VLAN to be part of a WAN trunk
for load balancing.
Configure Policy
Route
Click Policy Route to go to the screen where you can manually configure a policy route to
associate traffic with this VLAN.
OK Click OK to save your changes back to the Zyxel Device.
Cancel Click Cancel to exit this screen without saving.
Table 120 Configuration > Network > Interface > VLAN > Add / Edit (continued)
LABEL DESCRIPTION
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