CCNA_Security_03-bupt

CCNA_Security_03-bupt - CCNA Security Chapter 3:...

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1 CCNA Security Chapter 3: Chapter 3: Authentication Authentication , , Authorization Authorization and and Accounting Accounting
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2/66 Lesson Objectives Lesson Objectives A A uthentication, uthentication, A A uthorization, and uthorization, and A A ccounting ccounting AAA authentication with a AAA authentication with a local database local database Configure Configure Cisco ACS Cisco ACS to support to support AAA Configure AAA Configure server-based AAA server-based AAA
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3/66 Authentication, Authorization and Accounting 3.1 3.1 Purpose Purpose of AAA of AAA 3.2 3.2 Local Local AAA Authentication AAA Authentication 3.3 3.3 Server-Based Server-Based AAA AAA 3.4 Server-Based AAA 3.4 Server-Based AAA Authentication Authentication 3.5 Server-Based AAA Authorization and Accounting 3.5 Server-Based AAA Authorization and Accounting
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4 3.1 Purpose of AAA
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5/66 3.1 Purpose of AAA 3.1.1 AAA Overview 3.1.1 AAA Overview 3.1.2 AAA Characteristics 3.1.2 AAA Characteristics
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6/66 3.1.1 AAA Overview Authentication – Authentication – Password-Only Password-Only R1(config)# line vty 0 4 line vty 0 4 R1(config-line)# password password cisco cisco R1(config-line)# login login Internet User Access Verification Password: cisco Password: cisco1 Password: cisco12 % Bad passwords
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7/66 3.1.1 AAA Overview Authentication – Authentication – Local Database Local Database R1(config)# username username Admin Admin secret secret cisco cisco R1(config)# line vty 0 4 line vty 0 4 R1(config-line)# login local login local Internet User Access Verification Username: Admin Password: cisco1 % Login invalid Username: Admin Password: cisco12 % Login invalid
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8/66 AAA Access Security Accounting Accounting What did you spend it on? Authentication Authentication Who are you? Authorization Authorization which resources the user is allowed to access and which operations the user is allowed to perform?
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9/66 3.1.2 AAA Characteristics AAA Access Methods AAA Access Methods AAA Authorization AAA Authorization AAA Accounting AAA Accounting
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10/66 Access Methods Character Mode Character Mode A user sends a request to establish an EXEC mode process with the router for administrative purposes Packet Mode Packet Mode A user sends a request to establish a connection through the router with a device on the network
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Self-Contained Self-Contained AAA Authentication 1. 1. Establishes a connection Establishes a connection with the router. with the router. 2. 2. Prompts Prompts the user for a the user for a username and password username and password . . 3. 3. The router The router authenticates and authorized authenticates and authorized using the using the local local database. database.
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This note was uploaded on 04/10/2011 for the course CSIE 992 taught by Professor Lu during the Spring '11 term at National.

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CCNA_Security_03-bupt - CCNA Security Chapter 3:...

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