Concurrent web-based and MAC authentication

Web-based authentication and MAC authentication can be configured at the same time on a port. It is assumed that MAC authentication uses an existing MAC address. The following conditions apply for concurrent authentication:
  • A specific MAC address cannot be authenticated by both web and MAC authentication at the same time.

  • Each new web-based/MAC authentication client always initiates a MAC authentication attempt. This same client can also initiate web-based authentication at any time before the MAC authentication succeeds. If either authentication succeeds then the other authentication (if in progress) is ended. No further web-based/MAC authentication attempts are allowed until the client is de-authenticated.

  • Web-based and MAC authentications are not allowed on the same port if an unauthenticated (guest) VLAN is enabled for MAC authentication. An unauthenticated VLAN cannot be enabled for MAC authentication if web-based and MAC authentication are both enabled on the port.

  • Hitless reauthentication must be of the same type (MAC) that was used for the initial authentication. Non-hitless reauthentication can be of any type.

The remaining web-based/MAC functionality, including interactions with 802.1X, remains the same. web and MAC authentication can be used for different clients on the same port.

Normally, MAC authentication finishes much sooner than web authentication. However, if web authentication completes first, MAC authentication ceases, even though MAC authentication could succeed. There is no guarantee that MAC authentication ends before web-based authentication begins for the client.

Concurrent web-based and MAC authentication is backward compatible with all existing user configurations.