Cisco PIX 525 Dokumentacja Pobierz pdf (Strona 155)

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Cisco Security Appliance Command Line Configuration Guide

OL-6721-01

Chapter 11 Configuring Failover

Configuring Failover

Configuring Active/Active Failover

This section describes how to configure Active/Active failover.

This section includes the following topics:

• Prerequisites, page 11-23

• Configuring Cable-Based Active/Active Failover (PIX security appliance Only), page 11-23

• Configuring LAN-Based Active/Active Failover, page 11-25

• Configuring Optional Active/Active Failover Settings, page 11-28

See the “Failover Configuration Examples” section on page 11-44 for examples of typical failover

configurations.

Prerequisites

Before you begin, verify the following:

• Both units have the same hardware, software configuration, and proper license.

• Both units are in multiple context mode.

Configuring Cable-Based Active/Active Failover (PIX security appliance Only)

Follow these steps to configure Active/Active failover using a serial cable as the failover link. The

commands in this task are entered on the primary unit in the failover pair. The primary unit is the unit

that has the end of the cable labeled “Primary” plugged into it. For devices in multiple context mode, the

commands are entered in the system execution space unless otherwise noted.

You do not need to bootstrap the secondary unit in the failover pair when you use cable-based failover.

Leave the secondary unit powered off until instructed to power it on.

Cable-based failover is only available on the PIX security appliance platform.

To configure cable-based, Active/Active failover, perform the following steps:

Step 1 Connect the failover cable to the PIX security appliances. Make sure that you attach the end of the cable

marked “Primary” to the unit you use as the primary unit, and that you attach the end of the cable marked

“Secondary” to the unit you use as the secondary unit.

Step 2 Power on the primary unit.

Step 3 If you have not done so already, configure the active and standby IP addresses for each interface (routed

mode) or for the management interface (transparent mode). The standby IP address is used on the

security appliance 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 state link if you are going to use Stateful Failover.

hostname(config-if)# ip address

active_addr netmask

standby

standby_addr

1 2 ... 150 151 152 153 154 155 156 157 158 159 160 ... 603 604

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