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Chapter 25 Device HA
ZyWALL (ZLD) CLI Reference Guide
225
25.4.2 Active-Passive Mode Device HA Command Example
This example configures a ZyWALL to be a master ZyWALL for active-passive mode device HA.
There is a management IP address of 192.168.1.3 on lan1. wan1 and lan1 are monitored. The
synchronization password is set to “mySyncPassword”.
25.5 Legacy Mode (VRRP) Device HA
This section covers device HA using VRRP, VRRP groups, and synchronization.
Virtual Router Redundancy Protocol (VRRP) Overview
Every computer on a network may send packets to a default gateway, which can become a single
point of failure. Virtual Router Redundancy Protocol (VRRP), allows you to create redundant backup
gateways to ensure that the default gateway is always available. The ZyWALL uses a custom VRRP
implementation and is not compatible with standard VRRP.
VRRP Group Overview
In the ZyWALL, you should create a VRRP group to add one of its interfaces to a virtual router. You
can add any Ethernet interface, VLAN interface, or virtual interface (created on top of Ethernet
interfaces or VLAN interfaces) with a static IP address. You can only enable one VRRP group for
each interface, and you can only have one active VRRP group for each virtual router.
25.6 Legacy Mode (VRRP) Device HA Commands
The following table identifies the values required for many device-ha commands. Other input
values are discussed with the corresponding commands.
The following sections list the
device-ha commands.
Router(config)# device-ha ap-mode lan1 manage-ip 192.168.1.3 255.255.255.0
Router(config)# device-ha ap-mode role master
Router(config)# device-ha ap-mode master sync authentication password mySyncPassword
Router(config)# device-ha ap-mode wan1 activate
Router(config)# device-ha ap-mode lan1 activate
Router(config)# device-ha activate
Table 127 Input Values for device-ha Commands
LABEL DESCRIPTION
vrrp_group_name The name of the VRRP group. The name can consist of alphanumeric characters, the
underscore, and the dash and may be up to fifteen alphanumeric characters long.