102
For more information about configuring local authentication and RADIUS authentication, see
"
VLAN assignment
MAC authentication supports the authorization VLAN, guest VLAN, and critical VLAN.
Authorization VLAN
You can specify the authorization VLAN for a MAC authentication user to control access to authorized
network resources.
•
On a RADIUS server, the authorization VLAN can be specified in the form of VLAN ID or VLAN
name.
•
On the local access device, the authorization VLAN must be specified in the form of VLAN ID. You
can specify the authorization VLAN in the following views:
{
Local user view.
{
User group view.
For more information about local authorization VLAN configuration, see "
."
When the MAC authentication user passes authentication, the authentication server (either the local
access device or a RADIUS server) assigns the authorization VLAN to the user.
The port through which the user accesses the device is assigned to the authorization VLAN. A hybrid port
is always assigned to a server-assigned authorization VLAN as an untagged member. After the
assignment, do not reconfigure the port as a tagged member in the VLAN.
describes the way the network access device handles authorization VLANs for MAC
authenticated users.
Table 9
VLAN manipulation
Port type
VLAN
manipulation
•
Access port
•
Trunk port
•
Hybrid port with
MAC-based-VLAN disabled
The device assigns the first authenticated user's authorization VLAN to
the port as the PVID.
NOTE:
For these port types, you must assign the same authorization VLAN to
all MAC authentication users on a port. If a different authorization
VLAN is assigned to a subsequent user, the user cannot pass MAC
authentication.
Hybrid port with MAC-based VLAN
enabled
The device maps the MAC address of each user to the authorization
VLAN. The PVID of the port does not change. When a user logs off, the
MAC-to-VLAN mapping for the user is removed.
Guest VLAN
You can configure a MAC authentication guest VLAN on a port to accommodate users that have failed
MAC authentication on the port. Users in the MAC authentication guest VLAN can access a limited set
of network resources, such as a software server, to download software and system patches. If no MAC
authentication guest VLAN is configured, the users that have failed MAC authentication cannot access
any network resources.
A hybrid port is always assigned to a MAC authentication guest VLAN as an untagged member. After
the assignment, do not reconfigure the port as a tagged member in the VLAN.