dhcp option 60 seems not to working

[phil75]

Hi everybody!

recenlty I have modified the configuration of my dhcp server (windows server 2008 R2) to change the vlan throw the option 60 only for particulars devices t

by our networks we created a dedicate vlan for the voip (vlan 2).. the swiches are configured to work the hybrid port.. the defaut vlan in untagged the vlan 2 is tagged... when i manually change the vlan i settings on the phone the phone reached the voip network and than it get the provisioning from the pbx...

what i would like to get is.. when i connected to the network the phone this will contact the default dhcp server (windows) than this server will give the istruction to use the vlan 2 and then the phone will be autoprovisioning without user action..

I have setup this settings for other phones of other brand and this works very well... but I've got problem with the yealink phone.... it does't work... I've used wireshark to capture the vendor id of yealink phone... i get "yealink"....
it is correct this?
can you help me please?
thanks