Outlines RADIUS server functionality, secure transport methods with DTLS and TLS, router integration, dead-server detection, server group configuration, and per-VRF AAA techniques to enhance authentication, authorization, and security for network infrastructures.
RADIUS protocol
Explains how the RADIUS client/server protocol supports Cisco IOS XR AAA by centralizing authentication and accounting requests for remote network access.
RADIUS with DTLS protection
Explains how Cisco IOS XR uses Datagram Transport Layer Security as the RADIUS transport protocol to protect UDP-based RADIUS communication with encryption and peer authentication.
RADIUS with TLS protection
Explains how Cisco IOS XR redirects RADIUS packets to a remote server over TLS so AAA traffic receives encrypted transport and peer protection.
Router-to-RADIUS server communications
Explains the RADIUS server host communication parameters that Cisco IOS XR uses to reach external RADIUS servers for authentication and accounting services.
RADIUS dead-server detection features
Explains the time and tries criteria that Cisco IOS XR uses to mark a nonresponsive RADIUS server as dead and improve availability.
RADIUS server groups
Explains how Cisco IOS XR groups external RADIUS server hosts so AAA method lists can use named server groups for AAA service selection.
Per-VRF AAA for RADIUS
Explains how Cisco IOS XR utilizes VPN routing and forwarding instances to provide AAA services, enabling RADIUS communications to leverage VRF-specific server reachability.