The ability to "hide" the TACACS key is dependent on which version of code you are running. It is accomplished through the service password-encryption command. Older versions of code would encrypt only the line passwords, enable password. In more recent versions of code additional passwords are protected by this command. My experience is that 12.3T and 12.4 have included the TACACS key as one to protect (there could be other versions that do, but these are what I have experience with). Older versions of code do not protect the TACACS key. If you attempt to input the key with the "7" parameter it will not produce an encrypted key.
If you want the TACACS key hidden or encrypted then you should plan on upgrading the IOS version.
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...