To my understanding the things are in the following way
1.) You will have to have an identical licenses on an ASA Failover pair if you are running 8.2 or below software level
2.) Both ASA5510 will require the Security Plus license, even with the 8.3 or above software since it enables Failover capabilities.
3.) To my understanding licenses like VPN user licenses will be shared between the Failover units even if only one unit has the license (when running 8.3 or above)
4.) To my understanding both ASA units would have to have the IPS module but the IPS modules dont automatically replicated configurations. I can't say anything for sure regarding the IPS module as we use different devices for IPS functionality so I dont really have any expirience with them.
Here is link to one document section explaining the 8.3 changes to Failover licensing
Login to the FXOS chassis manager.
Direct your browser to https://hostname/, and log-in using the user-name and password.
Go to Help > About and check the current version:
Check the current version availa...
We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...