If an ASA has lan failover and statefull crossover-cables connected without an intermediate switch. If one ASA goes down the other asa senses two links are down, will this be an issue ? In the cisco the second edition of the firewall handbook it is a tip not to connect the back to back but it does not say what happens in a real situation.
Each interface should connect to a switch port so that the link status is always up to one firewall interface if the other firewall interface fails. Otherwise, both units sense a link-down condition and assume that their own interfaces have a failure.
You typically attach each ASA to a different switch for full redundancy. The failover link is inherently monitored because that link is where the majority of failover communications occur. If that link fails, then each ASA thinks it's primary.
They both think they are active. They both want to be active. The active keeps telling the secondary to 'stand down, I'm in charge right now.' The standby keeps waiting and wanting to be in charge. As soon as it doesn't here from the one in charge, it takes over and assumes the role.
DocumentationCode download linksGoalRequirementLimitationsSupported ISR and UCS-E ModelSupported ISRG2 and UCS-E Blades:Supported ISR4K and UCS-E Blades:Step by Step ConfigurationConfigure one of the connectivity options to access the Cisco IMC from the n...
Firepower Threat Defense (NGFWv) on UCS E-series - Transparent Mode in HA
DocumentationCode download linksGoalRequirementLimitationsSupported ISR and UCS-E ModelSupported ISRG2 and UCS-E Blades:Supported ISR4K and UCS-E Blades:Step by Step ConfigurationCo...
I am currently unable to specify "crypto keyring" command when configuring VPN connection on my cisco 2901 router.
The following licenses have been activated on my router :