Active-Passive Mode Device Ha Commands - ZyXEL Communications ZYWALL USG CLI Reference Manual

Monitored Interfaces in Active-Passive Mode Device HA
You can select which interfaces device HA monitors. If a monitored interface on the ZyWALL
loses its connection, device HA has the backup ZyWALL take over.
Enable monitoring for the same interfaces on the master and backup ZyWALLs. Each
monitored interface must have a static IP address and be connected to the same subnet as the
corresponding interface on the backup or master ZyWALL.
Virtual Router and Management IP Addresses
• If a backup takes over for the master, it uses the master's IP addresses. These IP addresses
are know as the virtual router IP addresses.
• Each interface can also have a management IP address. You can connect to this IP address
to manage the ZyWALL regardless of whether it is the master or the backup.

23.4 Active-Passive Mode Device HA Commands

The following table identify the values required for many of these commands. Other input
values are discussed with the corresponding commands.
Table 113 Input Values for device-ha Commands
LABEL
interface_name
The following sections list the
23.4.1 Active-Passive Mode Device HA Commands
This table lists the commands for configuring active-passive mode device HA.
Table 114 device-ha ap-mode Commands
COMMAND
[no] device-ha ap-mode preempt
device-ha ap-mode role {master|backup}
device-ha ap-mode cluster-id <1..32>
device-ha ap-mode priority <1..254>
ZyWALL (ZLD) CLI Reference Guide
DESCRIPTION
The name of the interface. This depends on the ZyWALL model.
For the ZyWALL USG 300 and above, use gex, x = 1 ~ N, where N equals the
highest numbered Ethernet interface for your ZyWALL model.
For the ZyWALL USG 100 and 200 models, use a name such as wan1, wan2,
opt, lan1, ext-wlan, or dmz.
commands.
device-ha
Chapter 23 Device HA
DESCRIPTION
Turn on preempt if this ZyWALL should become the
master ZyWALL if a lower-priority ZyWALL is the
master when this ZyWALL is enabled.
Sets the ZyWALL to be the master or a backup in
the virtual router.
Sets the cluster ID number. A virtual router consists
of a master ZyWALL and all of its backup
ZyWALLs. If you have multiple ZyWALL virtual
routers on your network, use a different cluster ID
for each virtual router.
Sets backup ZyWALL's priority. The backup
ZyWALL with the highest value takes over the role
of the master ZyWALL if the master ZyWALL
becomes unavailable. The priority must be
between 1 and 254. (The master interface has
priority 255.)
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