Device Ha; Overview; What You Can Do In This Chapter; What You Need To Know - ZyXEL Communications ZyWall USG 2000 User Manual

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H A P T E R

39.1 Overview

Device HA lets a backup ZyWALL (B) automatically take over if the master
ZyWALL (A) fails.
Figure 451 Device HA Backup Taking Over for the Master

39.1.1 What You Can Do in this Chapter

• Use the General screen
global settings, and see the status of each interface monitored by device HA.
• Use the Active-Passive Mode screens
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 ZyWALLs.
• Use the Legacy Mode screens
device HA. You can configure general legacy mode HA settings including link
monitoring, configure the VRRP group settings and synchronize backup
ZyWALLs.

39.1.2 What You Need to Know

Active-Passive Mode and Legacy Mode
• Active-passive mode lets a backup ZyWALL take over if the master ZyWALL
fails.
ZyWALL USG 2000 User's Guide
A
B
(Section 39.2 on page 677) to configure device HA
(Section 39.3 on page
(Section 39.5 on page
39

Device HA

678) to use
685) to use legacy mode
675