J

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Aug 14, 2019
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This post describes how to configure two Cisco ASA’s in Active / Standby Fail-over configuration. The standby ASA will take over a failed unit.



Topology







Configuration: ASA-Primary



ASA-1# show run | begin fail
failover
failover lan unit primary
failover lan interface Fail-Over GigabitEthernet0/0
failover link Fail-Over GigabitEthernet0/0
failover interface ip Fail-Over 192.168.0.1 255.255.255.0 standby 192.168.0.2
!
!
ASA-1(config)# failover ?
lan - Specify the unit as primary or secondary or configure the interface and vlan to be used for failover communication
!
ASA-1(config)# failover lan ?
configure mode commands/options:
interface Configure the interface and vlan to be used for failover
communication
unit Configure the unit as primary or secondary
!
ASA-1(config)# failover lan unit ?
configure mode commands/options:
primary Configure the unit as primary...
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