Hi to all,
I have this situation, my customer is using alacatel ip phones for his Ip Telephony and i already configure a Device Filter list with the MAC of the phone so the NAS can ignore its MAC and also enable the Change vlan acording to device filter list option in the port profile but as soon as the user logs into the network the port change to the authentication vlan again and the user is out the network.
What i've notice is that when the NAM takes control of the switch via SNMP the mac address that are learned from the port that is connected to the ip phone are coming up and down many times, i mean when i perform the command show mac-address-table int f0/1 sometimes the macs are there and sometimes no and i think the switch is sending this trap to the NAM and that's why the vlan comes again to the authentication vlan.
I tought that could be an SNMP issue and i upgrade the IOS in the switch and also tried with a diferent one but is the same situation.
Is there something else that i have to do to have NAC working with users connected to ip phones???
Thanks in advance for your help.