Adding Internal Networks to Bridges

Linked Diagram Template

See Also

Using Bridges

Overview

Workflow

Adding and Editing Bridges

Adding Internet Connections to Bridges

Deleting Bridges

Note: In order to add a VLAN of any type (port-based, tag-based, VAP, or WDS link) to the bridge, you must first create the desired VLAN.

For information on adding port-based VLANs, see Adding and Editing Port-Based VLANs. For information on adding tag-based VLANs, see Adding and Editing Tag-Based VLANs.For information on adding VAPs, see Configuring Virtual Access Points. For information on adding WDS links, see Configuring WDS Links.

To add an internal network to a bridge

Click Network in the main menu, and click the My Network tab.
The My Network page appears.
Click Edit in the desired network's row.
In the Mode drop-down list, select Bridged.
New fields appear.
Complete these fields as described below.
If the assigned bridge uses STP, additional fields appear.
Click Apply.
A warning message appears.
Click OK.
A success message appears.

In the My Network page, the internal network appears indented under the bridge.

Bridged Network Fields

In this field…	Do this…
Assign to Bridge	Select the bridge to which the connection should be assigned.
Bridge Anti-Spoofing	Select this option to enable anti-spoofing. If anti-spoofing is enabled, only IP addresses within the Allowed IP Range can be source IP addresses for packets on this network.
Allowed IP Range	Type the range of IP addresses that should be allowed on this network. Note: When assigning IP addresses to machines in a bridged network segment, the UTM-1 DHCP server allocates only addresses within the allowed IP address range. To enable clients to move between bridged networks without changing IP addresses, configure identical IP address ranges for the desired networks, thus allowing the IP addresses to be used on either of the bridged networks. Note: Configuring overlapping or identical allowed IP address ranges will decrease the effectiveness of anti-spoofing between the bridged networks.
Spanning Tree Protocol - Port Cost	Type the port's cost.STP uses the available port with the lowest cost to forward frames to the root port. All other ports are blocked. It is recommended to set a lower value for faster links. This field only appears if the bridge uses STP.
Spanning Tree Protocol - Port Priority	Select the port's priority. The port's priority is combined with the port's logical number to create the port's ID. The port with the lowest ID is elected as the root port, which forwards frames out of the bridge. The other ports in the bridge calculate the least-cost path to the root port, in order to eliminate loops in the topology and provide fault tolerance. To increase the chance of this port being elected as the root port, select a lower priority. Note: If you select the same priority for all ports, the root port will be elected based on the port's logical number. The default value is 128.This field only appears if the bridge uses STP.