ZyXEL ZyWALL USG 2000 User Guide - Page 668
Management Access, Synchronization, Finding Out More
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Chapter 39 Device HA • Legacy mode allows for more complex relationships between the master and backup ZyWALLs, such as active-active or using different ZyWALLs as the master ZyWALL for individual interfaces. Legacy mode configuration involves a greater degree of complexity. Active-passive mode is recommended for general failover deployments. • The ZyWALLs must all support and be set to use the same device HA mode (either active-passive or legacy). Management Access You can configure a separate management IP address for each interface. You can use it to access the ZyWALL for management whether the ZyWALL is the master or a backup. The management IP address should be in the same subnet as the interface IP address. Synchronization Use synchronization to have a backup ZyWALL copy the master ZyWALL's configuration, signatures (anti-virus, IDP/application patrol, and system protect), and certificates. Note: Only ZyWALLs of the same model and firmware version can synchronize. Otherwise you must manually configure the master ZyWALL's settings on the backup (by editing copies of the configuration files in a text editor for example). Finding Out More • See Section 6.5.24 on page 113 for related information on these screens. • See Section 39.7 on page 682 for device HA background/technical information. • See Section 7.14 on page 164 for an example of using device HA. 39.1.3 Before You Begin • Configure a static IP address for each interface that you will have device HA monitor. Note: Subscribe to services on the backup ZyWALL before synchronizing it with the master ZyWALL. • Synchronization includes updates for services to which the master and backup ZyWALLs are both subscribed. For example, a backup subscribed to IDP/ AppPatrol, but not anti-virus, gets IDP/AppPatrol updates from the master, but not anti-virus updates. It is highly recommended to subscribe the master and backup ZyWALLs to the same services. 668 ZyWALL USG 2000 User's Guide
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