Cisco 7604 Configuration Guide - Page 345
Applying AAA for Network Access, AAA Performance, Configuring Authentication for Network Access
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17 C H A P T E R Applying AAA for Network Access This chapter describes how to enable AAA (pronounced "triple A") for network access. For information about AAA for management access, see the "AAA for System Administrators" section on page 23-10. This chapter includes the following sections: • AAA Performance, page 17-1 • Configuring Authentication for Network Access, page 17-1 • Configuring Authorization for Network Access, page 17-9 • Configuring Accounting for Network Access, page 17-13 • Using MAC Addresses to Exempt Traffic from Authentication and Authorization, page 17-14 AAA Performance The FWSM uses "cut-through proxy" to significantly improve performance compared to a traditional proxy server. The performance of a traditional proxy server suffers because it analyzes every packet at the application layer of the OSI model. The FWSM cut-through proxy challenges a user initially at the application layer and then authenticates against standard RADIUS, TACACS+, or the local database. After the FWSM authenticates the user, it shifts the session flow, and all traffic flows directly and quickly between the source and destination while maintaining session state information. Configuring Authentication for Network Access This section includes the following topics: • Authentication Overview, page 17-2 • Enabling Network Access Authentication, page 17-3 • Configuring Custom Login Prompts, page 17-5 • Enabling Secure Authentication of Web Clients, page 17-6 • Disabling Authentication Challenge per Protocol, page 17-8 OL-20748-01 Catalyst 6500 Series Switch and Cisco 7600 Series Router Firewall Services Module Configuration Guide using ASDM 17-1
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