IP Address for Failover on PIX Firewalls

Primary PIX Firewall

(active/standby) (system IP/failover IP)

Primary PIX Firewall

(active/standby) (system IP/failover IP)

Secondary PIX Firewall

(standby/active) (failover IP/system IP)

Secondary PIX Firewall

(standby/active) (failover IP/system IP)

©2000, Cisco Systems,

When actively functioning, the primary PIX Firewall uses system IP addresses and MAC addresses. The secondary PIX Firewall, when on standby, uses failover IP addresses and MAC addresses.

When the primary PIX Firewall fails and the secondary PIX Firewall becomes active, the secondary PIX Firewall assumes the system IP addresses and MAC addresses of the primary PIX Firewall. Then the primary PIX Firewall, functioning in standby, assumes the failover IP addresses and MAC addresses of the secondary PIX Firewall.

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