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Cisco ASDM User Guide
OL-16647-01
Chapter 15 High Availability
Configuring Failover with the High Availability and Scalability Wizard
Check Failover Peer Connectivity and Compatibility
The Check Failover Peer Connectivity and Compatibility screen lets you verify that the selected failover
peer is reachable and compatible with the current unit. If any of the connectivity and compatibility tests
fail, you must correct the problem before you can proceed with the wizard.
Fields
• Peer IP Address—Enter the IP address of the peer unit. This address does not have to be the failover
link address, but it must be an interface that has ASDM access enabled on it.
• Test Compatibility—Click this button to perform the following connectivity and compatibility tests:
–
Connectivity test from this ASDM to the peer unit
–
Connectivity test from this firewall device to the peer firewall device
–
Hardware compatibility test
–
Software version compatibility
–
Failover license compatibility
–
Firewall mode compatibility
Modes
The following table shows the modes in which this feature is available:
Change Device to Multiple Mode
The Change Device to Multiple Mode dialog box appears for Active/Active failover configuration only.
Active/Active failover requires the security appliance to be in multiple context mode. This dialog box
lets you convert a security appliance in single context mode to multiple context mode.
When you convert from single context mode to multiple context mode, the security appliance creates the
system configuration and the admin context from the current running configuration.The admin context
configuration is stored in the admin.cfg file. The conversion process does not save the previous startup
configuration, so if the startup configuration differed from the running configuration, those differences
are lost.
Converting the security appliance from single context mode to multiple context mode causes the security
appliance to reboot. However the High Availability and Scalability Wizard restores connectivity with the
newly created admin context and reports the status in the Devices Status field in this dialog box.
Firewall Mode Security Context
Routed Transparent Single
Multiple
Context System
• • •— •
Firewall Mode Security Context
Routed Transparent Single
Multiple
Context System
• • •— •