Sunday, October 4, 2020

Cisco ASA virtual Mac address for failover question

I have configured Cisco ASA 5585-x with Active/Standby mode, cisco best practice saying you should use Virtual MAC address on interface to avoid traffic disruption when you do failover. now question is what MAC address i should use so it won't conflict with any other device in datacenter can i use aaa.aaa.aaa.aaa, bbbb.bbbb.bbbb.bbbb OR can i use Burn-in MAC address of physical interface as virtual Mac so i don't need to worry about any kind of conflict (I didn't find in cisco guide saying you can use Real Burn-in MAC address as virtual so wanted to make sure what other people doing here?)

I have Port-channel configured on cisco ASA so do i need to configure Virtual MAC address on port-channel interface also or just VLAN interface like PortChannel1.10 ?



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