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dot1x Authentication

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  • dot1x Authentication

    Hey everyone, I was wondering if someone could help me. I am trying to implement 801.x port security in my network. In our switch ports we have an IP AVAYA phone connected and a workstation connected to the IP phone. I enable dot1x authentication on the ports specifying the data vlan and the voice vlan. I configure the avaya phone 1608 in pass-thru mode, so that the authetication is forwaded to the PC. Supposedly, the phone would be able to connect without any authentication but it doesn't! I can't communicate with the dhcp server to get an ip:

    here is what I configure on the switch ports:

    interface FastEthernet1/0/2
    switchport access vlan 200
    switchport mode access
    switchport voice vlan 45
    dot1x pae authenticator
    dot1x port-control auto
    dot1x host-mode multi-host
    dot1x violation-mode protect
    spanning-tree portfast

    thanx for the help!!!