Implementing Secure Solutions with Virtual Private Networks: Cisco ASA Active/Standby Failover Configuration

Cisco ASA Active/Standby Failover Configuration

Question

A Cisco ASA is configured in active/standby mode.

What is needed to ensure that Cisco AnyConnect users can connect after a failover event?

Answers

Explanations

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A. B. C. D.

A.

https://www.cisco.com/c/en/us/td/docs/security/asa/asa90/configuration/guide/asa_90_cli_config/ha_active_standby.html

In an active/standby configuration for Cisco ASA, one ASA unit serves as the primary unit (active) and the other serves as the secondary unit (standby). The primary unit handles all traffic processing, while the secondary unit remains idle until it needs to take over in the event of a failover.

In order to ensure that Cisco AnyConnect users can connect after a failover event, you need to ensure that the necessary configuration settings are in place.

Option A: AnyConnect images must be uploaded to both failover ASA devices. This option is correct because if the secondary ASA unit takes over after a failover event, it needs to have the AnyConnect images installed on it to support client connections. If the images are not installed, clients will not be able to connect. Therefore, the AnyConnect images must be uploaded to both the primary and secondary ASA units.

Option B: The vpnsession-db must be cleared manually. This option is not correct because clearing the vpnsession-db manually will not help clients connect after a failover event. The vpnsession-db is used to store information about client connections, but it does not impact whether clients can connect after a failover event.

Option C: Configure a backup server in the XML profile. This option is not correct because configuring a backup server in the XML profile is not necessary to ensure that AnyConnect users can connect after a failover event. The XML profile is used to specify client settings, but it does not impact the failover process.

Option D: AnyConnect client must point to the standby IP address. This option is partially correct because clients must be able to connect to the standby ASA unit after a failover event. However, simply pointing the AnyConnect client to the standby IP address is not enough. The AnyConnect images must also be installed on the standby ASA unit and the appropriate failover configurations must be in place to ensure that the standby unit can take over in the event of a failure.

In summary, to ensure that Cisco AnyConnect users can connect after a failover event in an active/standby configuration, the AnyConnect images must be uploaded to both failover ASA devices, and appropriate failover configurations must be in place to ensure that the standby unit can take over in the event of a failure.