Cisco 7604 Configuration Guide - Page 280
Using Active/Active Failover, Prerequisites
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Configuring Failover Chapter 14 Configuring Failover Using Active/Active Failover This section describes how to configure Active/Active failover. This section includes the following topics: • Prerequisites, page 14-26 • Configuring Active/Active Failover, page 14-26 • Configuring Optional Active/Active Failover Settings, page 14-29 See the "Failover Example Configurations" section on page B-18 for examples of typical failover configurations. Prerequisites Before you begin, verify the following: • Both units have the proper license. • Both units are in multiple context mode. You do not need configure the firewall mode of the security contexts on the secondary unit because the failover and state links reside in the system context. The secondary unit obtains the security context configuration from the primary unit. Note The mode command does not get replicated to the secondary unit. Configuring Active/Active Failover This section describes how to configure Active/Active failover. You must configure the secondary unit to recognize the failover link before the secondary unit can obtain the running configuration from the primary unit. This section includes the following topics: • Configure the Primary Unit, page 14-26 • Configure the Secondary Unit, page 14-28 Configure the Primary Unit To configure the primary unit in an Active/Active failover configuration, perform the following steps: Step 1 If you have not done so already, configure the active and standby IP addresses for each interface (routed mode) or for the management address (transparent mode). The standby IP address is used on the FWSM that is currently the standby unit. It must be in the same subnet as the active IP address. Note Do not configure an IP address for the failover link or for the state link (if you are going to use Stateful Failover). hostname(config-if)# ip address active_addr netmask standby standby_addr 14-26 Catalyst 6500 Series Switch and Cisco 7600 Series Router Firewall Services Module Configuration Guide using ASDM OL-20748-01
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