Chapter 34 Device HA

Figure 431 Device HA > General

The following table describes the labels in this screen.

Table 185 Device HA > General

LABEL

DESCRIPTION

Enable Device

Turn the ZyWALL’s device HA feature on or off.

HA

 

 

 

Device HA Mode

This displays whether the ZyWALL is currently set to use active-passive mode

 

device HA or legacy mode device HA. Active-passive mode is recommended for

 

general device failover deployments. Only use legacy mode if you need a more

 

complex relationship between the master and backup ZyWALLs, such as active-

 

active or using different ZyWALLs as the master for individual interfaces.

 

The master and its backups must all use the same device HA mode.

 

Click the link to go to the screen where you can configure the ZyWALL to use the

 

device HA mode that it is not currently using.

 

 

Monitored

This table shows the status of the interfaces that you selected for monitoring in the

Interface

other device HA screens.

Summary

 

 

 

Interface

These are the names of the interfaces that are part of device HA.

 

 

Virtual Router IP

This is the interface’s IP address and subnet mask. Whichever ZyWALL is the

/ Netmask

master uses this virtual router IP address and subnet mask.

 

 

Management IP /

This field displays the interface’s management IP address and subnet mask. You

Netmask

can use this IP address and subnet mask to access the ZyWALL whether it is in

 

master or backup mode.

 

 

Link Status

This tells whether the monitored interface’s connection is down or up.

 

 

HA Status

The text before the slash shows whether the device is configured as the master or

 

the backup role.

 

This text after the slash displays the monitored interface’s status in the virtual

 

router.

 

Active - This interface is up and using the virtual IP address and subnet mask.

 

Stand-By- This interface is a backup interface in the virtual router. It is not using

 

the virtual IP address and subnet mask.

 

Fault - This interface is not functioning in the virtual router right now. In active-

 

passive mode (or in legacy mode with link monitoring enabled), if one of the master

 

ZyWALL’s interfaces loses its connection, the master ZyWALL forces all of its

 

interfaces to the fault state so the backup ZyWALL can take over all of the master

 

ZyWALL’s functions.

 

 

Apply

Click Apply to save your changes back to the ZyWALL.

 

 

Reset

Click Reset to begin configuring this screen afresh.

 

 

 

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ZyWALL USG 100/200 Series User’s Guide