Users Guide
Dot1x Status: Enable
Port Control: AUTO
Port Auth Status: UNAUTHORIZED
Re-Authentication: Disable
Untagged VLAN id: None
Guest VLAN: Disable
Guest VLAN id: NONE
Auth-Fail VLAN: Disable
Auth-Fail VLAN id: NONE
Auth-Fail Max-Attempts: NONE
Critical VLAN: Disable
Critical VLAN id: NONE
Mac-Auth-Bypass: Disable
Mac-Auth-Bypass Only: Disable
Static-MAB: Disable
Static-MAB Profile: NONE
Tx Period: 30 seconds
Quiet Period: 60 seconds
ReAuth Max: 2
Supplicant Timeout: 30 seconds
Server Timeout: 30 seconds
Re-Auth Interval: 3600 seconds
Max-EAP-Req: 2
Host Mode: SINGLE_HOST
Auth PAE State: Connecting
Backend State: Idle
Multi-Supplicant Authentication
802.1X multi-supplicant authentication enables multiple devices on a single authenticator port to access the network by authenticating each 
device. In addition, multi-supplicant authentication uses dynamic MAC-based VLAN assignment to place devices on dierent VLANs. This 
feature is dierent from multi-host authentication in which multiple devices connected to a single authenticator port can access the 
network after only the one device is authenticated, and all hosts are placed in the same VLAN as the authenticated device.
Multi-supplicant authentication is needed, for example, in the case of a workstation at which a VoIP phone and PC are connected to a 
single authenticator port. Multi-host authentication could authenticate the rst device to respond, and then both devices could access the 
network. However, if you wanted to place them in dierent VLANs — a VoIP VLAN and a data VLAN — you would need to authenticate 
the devices separately so that the RADIUS server can send each device’s VLAN assignment during that devices authentication process.
During the authentication process, the switch is able to learn the MAC address of the device though the EAPoL frames, and the VLAN 
assignment from the RADIUS server. With this information it creates an authorized-MAC-to-VLAN mapping table per port. Then, the 
system can tag all incoming untagged frames with the appropriate VLAN-ID based on the table entries.
Conguring Multi-Supplicant Authentication
To enable multi-supplicant authentication on a port, enter the dot1x host-mode multi-auth command in Interface mode. To return 
to the default single-host authentication mode, enter the no dot1x host-mode command. To verify the currently congured 
authentication mode, enter the 
show dot1x interface command.
Dell(conf-if-te-1/3)# dot1x host-mode multi-auth
Dell(conf-if-te-1/3)# do show dot1x interface tengigabitethernet 1/3
802.1x information on Te 1/3:
-----------------------------
Dot1x Status: Enable
Port Control: AUTO
Re-Authentication: Disable
Guest VLAN: Disable
Guest VLAN id: NONE
Auth-Fail VLAN: Disable
Auth-Fail VLAN id: NONE
Auth-Fail Max-Attempts: NONE
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802.1X










