11-11-2017 02:48 AM - edited 03-17-2019 11:34 AM
I configured the interface as follow
interface FastEthernet0/3
switchport access vlan 201
switchport mode access
switchport voice vlan 200
spanning-tree portfast
!
The IP telephony take IP from VLAN 201 not from vlan 200.
I attached a wireshark log , please check row 388 , 398
11-11-2017 03:28 AM - edited 11-11-2017 03:29 AM
The interface configuration seems to be fine. But you didn't attached the Wireshark capture.
Also, please state the device type you're trying to connect and it's current firmware.
11-11-2017 03:38 AM
11-11-2017 03:39 AM
Grandstream 1625
11-11-2017 03:53 AM
Oh, it is not a Cisco phone. Therefore, it's not familiar with negotiation with the switch via CDP protocol in order to "tell" the switch that it is a "Phone", which means the switch is recognizing this device as a simple "access" device.
For sure I can tell that if you'll configure this interface as access with VLAN 200, it should work. But, you can try to put this configuration on your interface, maybe it'll do the trick.
interface FastEthernet0/3
switchport access vlan 201 switchport trunk native vlan 201 switchport trunk allowed vlan 201,200 switchport voice vlan 200
11-11-2017 04:13 AM
IT tried your configuration, still getting from data vlan
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