Shared Flashcard Set

Details

CCNAS
CH 3
21
Computer Networking
Undergraduate 4
02/04/2015

Additional Computer Networking Flashcards

 


 

Cards

Term
Cisco Secure ACS for Windows server
Definition
AAA services on the router contacts a Cisco Secure Access Control Server (ACS) system for user and administrator authentication
Term
Cisco Secure ACS Solution engine
Definition
AAA services on the router or NAS, contact an external Cisco Secure ACS Solution Engine for user and administrator authentication
Term
  • The client establishes a connection with the router.
  • The AAA router prompts the user for a username and password.
  • The router authenticates the username and password using a remote AAA server. 
  • The user is authorized to access the network based on information on the remote AAA Server.
Definition
Server based AAA authentication steps
Term
accounting
Definition

Provides the method for collecting and sending security server information.

 

Used for billing, auditing, and reporting

 

Router reports user activity to the TACACS+ security server 

Term
  • Increased flexibility and control of access configuration
  • Scalability
  • Multiple backup systems
  • Standardized authentication methods

- RADIUS, TACACS+, Kerberos

Definition
AAA benefits
Term
  • RADIUS
  •  TACACS+
  •  Kerberos
 
Definition

Standardized authentication methods

 
Term
  • TACACS+
  • RADIUS
Definition
protocols used to communicate between the clients and the AAA servers
Term
RADIUS
Definition

It does not encrypt user names, accounting information, or any other information carried in the radius message

 

-only encrypts the user password

Term
RADIUS
Definition
combines authentication and authorization as one process which means that when a user is authenticated, that user is also authorized
Term
RADIUS
Definition
widely used by VoIP service providers because it passes login credentials of a session initiation protocol (SIP) endpoint, such as a broadband phone
Term
authorization
Definition
determine which resources the user can access and which operations the user is allowed to perform.
Term
character mode
Definition

A user sends a request to establish an EXEC mode process with the router for administrative purposes

 

(EXEC authorization)

Term
packet mode
Definition

A user sends a request to establish a connection through the router with a device on the network.

 

(network authorization)

Term
Managing Admin Access Methods
Definition
  • Password only
  • Local database
  • AAA Local Authentication (self-contained AAA)
  • AAA Server-based
Term
default list
Definition
is automatically applied to all interfaces if no other method list is defined.
Term
named list
Definition

must be applied to a specific interface before any of the defined authentication methods will be performed

 

 identifies the list of authentication methods activated when a user logs in. 

Term
method lists
Definition
a sequential list describing the authentication methods to be queried for authenticating a user. Enable an administrator to designate one or more security protocols for authentication
Term
Cisco Secure ACS
Definition
a single solution that offers AAA services using TACACS+ or RADIUS
Term
login
Definition
enables AAA for logins, vty, line con 0, TTY
Term
enable
Definition
enables AAA for EXEC mode access
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