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Multi-Domain Authentication

Last Modified: 2015-04-02
i am trying to authenticate telephone and PC trhough a Multi-Domain enabled switchport. The telephone uses MAB to gain access to the domain and it does so successfully. when i connect the PC directly on the dot1x switchport it does not gain access to the domain. once i turn the implementation of the switchport to multi-host the PC authenticates with Dot1x successfully!

my switchport setup is as follows:
Current configuration : 545 bytes
interface GigabitEthernet1/0/19
 description Dot1x KM office test link
 switchport mode access
 switchport voice vlan 100
 no logging event link-status
 authentication event fail action next-method
 authentication event server dead action authorize vlan 300
 authentication event no-response action authorize vlan 1023
 authentication host-mode multi-domain
 authentication port-control auto
 dot1x pae authenticator
 storm-control broadcast level 0.50 0.40
 storm-control multicast level 0.50 0.40
 spanning-tree portfast
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