As networks begin to grow in size, the issue of maintaining user credentials on every device in the network can become a very overwhelming problem. Network designers and administrators quickly recognized the need for a centralized user management system for these network devices. Two primary protocols are used in Cisco networking devices to enable this capability:

  • Remote Authentication Dial-In User Service (RADIUS)
  • Terminal Access Controller Access-Control System Plus (TACACS+)

Using LiveAction with Cisco Secure ACS (TACACS+ Server) Application Note