ASA Failover and Redundancy

The following must be identical: Model (5505 or 5510 or 5520, etc) Amount of RAM Number of Interfaces (should be the same type as well) External Modules (CSC-SSM or IPS-SSM) Activation key with the same features Failover mode Encryption Level Number of VPN peers *** Same size Flash is not required **** Definitions: Active -> ResponsibelContinue reading “ASA Failover and Redundancy”

Cisco ASA Firewall Active / Standby Failover

The Cisco ASA firewall is often an important device in the network. We use it for (remote access) VPNs, NAT/PAT, filtering and more. Since it’s such an important device it’s a good idea to have a second ASA in case the first one fails. The ASA supports active/standby failover which means one ASA becomes theContinue reading “Cisco ASA Firewall Active / Standby Failover”