Zyxel ZyWALL 1100 [557/829] Overview

Zyxel ZyWALL 110 [557/829] Overview
ZyWALL/USG Series User’s Guide
557
CHAPTER 34
Device HA
34.1 Overview
Device HA lets a backup ZyWALL/USG (B) automatically take over if the master ZyWALL/USG (A)
fails.
Figure 367 Device HA Backup Taking Over for the Master
ZyWALL 110, ZyWALL 310, ZyWALL 1100 USG110, USG210, USG310, USG1100, and USG1900
support Device HA (High Availability).
34.1.1 What You Can Do in this Chapter
•Use the General screen (Section 34.2 on page 558) to configure device HA global settings, and
see the status of each interface monitored by device HA.
•Use the Active-Passive Mode screens (Section 34.3 on page 559) to use active-passive mode
device HA. You can configure general active-passive mode device HA settings, view and manage
the list of monitored interfaces, and synchronize backup ZyWALL/USGs.
34.1.2 What You Need to Know
Active-Passive Mode
Active-passive mode lets a backup ZyWALL/USG take over if the master ZyWALL/USG fails.
The ZyWALL/USGs must be set to use the same device HA mode (active-passive).
Management Access
You can configure a separate management IP address for each interface. You can use it to access
the ZyWALL/USG for management whether the ZyWALL/USG is the master or a backup. The
management IP address should be in the same subnet as the interface IP address.
A
B

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