Web and MAC Authentication

Operating Rules and Notes

1.If there is a RADIUS-assigned VLAN, then, for the duration of the client session, the port belongs to this VLAN and temporarily drops all other VLAN memberships.

2.If there is no RADIUS-assigned VLAN, then, for the duration of the client session, the port belongs to the Authorized VLAN (if configured) and temporarily drops all other VLAN memberships.

3.If neither 1 or 2, above, apply, but the port is an untagged member of a statically configured, port-based VLAN, then the port remains in this VLAN.

4.If neither 1, 2, or 3, above, apply, then the client session does not have access to any statically configured, untagged VLANs and client access is blocked.

•After an authorized client session begins on a given port, the port’s VLAN membership does not change. If other clients on the same port become authenticated with a different VLAN assignment than the first client, the port blocks access to these other clients until the first client session ends.

•The optional “authorized” VLAN (auth-vid) and “unauthorized” VLAN (unauth-vid) you can configure for Web- or MAC-based authentication must be statically configured VLANs on the switch. Also, if you configure one or both of these options, any services you want clients in either category to access must be available on those VLANs.

■Where a given port’s configuration includes an unauthorized client VLAN assignment, the port will allow an unauthenticated client session only while there are no requests for an authenticated client session on that port. In this case, if there is a successful request for authentication from an authorized client, the switch terminates the unauthorized-client session and begins the authorized-client session.

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When a port on the switch is configured for Web or MAC Authentication and is supporting a current session with another device, rebooting the switch invokes a re-authentication of the connection.

When a port on the switch is configured as a Web- or MAC-based authenticator, it blocks access to a client that does not provide the proper authentication credentials. If the port configuration includes an optional, unauthorized VLAN (unauth-vid), the port is temporarily placed in the unauthorized VLAN if there are no other authorized clients currently using the port with a different VLAN assignment. If an authorized client is using the port with a different VLAN or if there is no unauthorized VLAN configured, the unauthorized client does not receive access to the network.

■Web- or MAC-based authentication and LACP cannot both be enabled on the same port.

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