Authentication Authorization and Accounting

(AAA)

• Solves many of the issues with PPP.

• Is designed for the idea of port authentication. Allowing remote users authentication to a particular point of entry (a port) to another network.

• Authentication: authenticate with any type of authentication method, usually username and password.

• Authorization: once authenticated determine what it has access to.
• Accounting: the authenticating server does some form of auditing logging session data, for example.