CH 1 Flashcards
involves controlling access to
who can log in to a network device console, Telnet session, or Secure Shell (SSH) session
Device administration AAA
involves securing network access to ensuring
the identity of the device or user before permitting the entity to communicate with
the network.
Network access AAA
lists of commands that an authenticated user
is either permitted or not permitted to run
command sets
IEEE 802.1X cannot use which protocol?
TACACS
TACACS+ was not supported by Cisco ISE until which ISE Version?
2.0
which part of a packet is encrypted with TACACS+ and which port does TACACS+ use?
the entire packet, TCP 49
When using TACACS+ for authentication, what are the three types of packets exchanged between the client (the network device) and the server:
START, REPLY, CONTINUE
This packet is used to begin the authentication request between the AAA
client and the AAA server
START
These messages are sent from the AAA server to the AAA client.
REPLY
These messages from the AAA client are responses to the AAA server
requests for usernames and passwords
CONTINUE
The final REPLY message from the AAA server to the AAA client can include the following
possible values:
ACCEPT, REJECT, ERROR, CONTINUE
The user authentication succeeded, and the authorization process may
begin, if the AAA client is configured for authorization
ACCEPT
The user authentication failed. The login is denied or the end user is prompted to try again, depending on the configuration of the AAA client
REJECT
An error occurred at some point during the authentication. AAA clients typically attempt to authenticate the user again or attempt a different method of authenticating the user
ERROR
The user is prompted for additional information. This value sent from
the AAA server within a REPLY message, indicating that more information is required,
should not be confused with the CONTINUE message sent from the AAA client to
the AAA server
CONTINUE
When using TACACS+ for authorization, only two messages are used between the AAA
client and the AAA server:
REQUEST or RESPONSE
This message is sent from the AAA client to the AAA server to request
authorization
REQUEST
This message is sent from the AAA server back to the AAA client with
the result of the authorization request, including specific details, such as the privilege
level assigned to the end user.
RESPONSE