Deploy Cisco ASA 55xx in Active / Standby Failover
KB ID 0000048 Problem You want to deploy 2 Cisco ASA 55xx Series firewalls in an Active/Standby failover configuration. Solution Assumptions. Hardware on both ASA firewalls is identical. The correct license’s for failover are installed on both firewalls. The same software versions are installed on both firewalls. You have your PRIMARY firewall set up and running correctly (Everything works!). In this example the firewalls were...
Cisco ASA 5500 Active/Standby – Zero Downtime Upgrade
KB ID 0000733 Problem You have two ASA firewalls deployed in Active/Standby failover configuration, and need to upgrade either the operating system or the ASDM. As you already have a high availability solution you do not want any downtime. Before we start, we need to make sure we know the difference between primary, secondary, active and standby. From the rear (Active=Green, Standby=Amber) The Primary and Secondary firewalls are...