I would appreciate if someone can comments, if they have any experience or came across with any issues regarding NATing or ACL setup for NAT ranges after upgrading ASA from version 7.2 to 8.3 or later?
At the moment we are planning to upgrade existing firewalls from version 7.2 to 8.4, but we have found that on the version 8.3 and later, Cisco has made some changes in a way NAT is setup and how the source and destination objects used in acl if referring to NAT addresses.
I am sorry if I am not very clear, but I will be thankful if someone can explain the differences and considerations while upgrading the devices or refer some documentation.
This is a major upgrade ( there are a lot of changes on the NAT and ACL's statements) but I can ensure you that as soon as you understand this new configuration it would be so much easier for you to work with the ASA.
I would recommend you to go from 7.2 to 8.2 and then 8.4.
I am going to provide you some of the best links related to 8.3 changes .
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...