Which statement about this debug output is true?

Refer to the below.

Which statement about this debug output is true?
A . The requesting authentication request came from username GETUSE
C . The TACACS+ authentication request came from a valid user.
D . The TACACS+ authentication request passed, but for some reason the user’s connection was closed immediately.
E . The initiating connection request was being spoofed by a different source address.

View Answer

Answer: B

Explanation:

http://www.cisco.com/en/US/docs/ios/12_2/debug/command/reference/dbfser.html

debug tacacs

To display information associated with the TACACS, use the debug tacacs privileged EXEC command. The no form of this command disables debugging output.

debug tacacs

no debug tacacs

The following is sample output from the debug tacacs command for a TACACS login attempt that was successful, as indicated by the status PASS:

Router# debug tacacs

14:00:09: TAC+: Opening TCP/IP connection to 192.168.60.15 using source 10.116.0.79

14:00:09: TAC+: Sending TCP/IP packet number 383258052-1 to 192.168.60.15 (AUTHEN/START)

14:00:09: TAC+: Receiving TCP/IP packet number 383258052-2 from 192.168.60.15

14:00:09: TAC+ (383258052): received authen response status = GETUSER

14:00:10: TAC+: send AUTHEN/CONT packet

14:00:10: TAC+: Sending TCP/IP packet number 383258052-3 to 192.168.60.15 (AUTHEN/CONT)

14:00:10: TAC+: Receiving TCP/IP packet number 383258052-4 from 192.168.60.15

14:00:10: TAC+ (383258052): received authen response status = GETPASS

14:00:14: TAC+: send AUTHEN/CONT packet

14:00:14: TAC+: Sending TCP/IP packet number 383258052-5 to 192.168.60.15 (AUTHEN/CONT)

14:00:14: TAC+: Receiving TCP/IP packet number 383258052-6 from 192.168.60.15

14:00:14: TAC+ (383258052): received authen response status = PASS

14:00:14: TAC+: Closing TCP/IP connection to 192.168.60.15