Device Ha Technical Reference - ZyXEL Communications USG40 User Manual

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Figure 338 Configuration > Device HA > Active-Passive Mode > Edit

The following table describes the labels in this screen.

Table 203 Configuration > Device HA > Active-Passive Mode > Edit

Interface Name

Virtual Router IP

(VRIP) / Subnet

31.5 Device HA Technical Reference

Active-Passive Mode Device HA with Bridge Interfaces

Here are two ways to avoid a broadcast storm when you connect the bridge interfaces on two

ZyWALL/USGs.

First Option for Connecting the Bridge Interfaces on Two ZyWALL/USGs

The first way is to activate device HA before connecting the bridge interfaces as shown in the

following example.

Chapter 31 Device HA

Select this to have device HA monitor the status of this interface's connection.

This identifies the interface.

Note: Do not connect the bridge interfaces on two ZyWALL/USGs without device HA

activated on both. Doing so could cause a broadcast storm.

Either activate device HA before connecting the bridge interfaces or disable the bridge

interfaces, connect the bridge interfaces, activate device HA, and finally reactivate the

bridge interfaces.

This is the interface's (static) IP address and subnet mask in the virtual router. Whichever

ZyWALL/USG is currently serving as the master uses this virtual router IP address and

subnet mask. These fields are blank if the interface is a DHCP client or has no IP settings.

Enter the interface's IP address for management access. You can use this IP address to

access the ZyWALL/USG whether it is the master or a backup. This management IP

address should be in the same subnet as the interface IP address.

Enter the subnet mask of the interface's management IP address.

Click OK to save your changes back to the ZyWALL/USG.

Click Cancel to exit this screen without saving your changes.

ZyWALL/USG Series User's Guide

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