12-05-2011 06:59 AM - edited 03-07-2019 03:44 AM
Hi Folks,
I'm using CISCO 3524 switch as access switch and trying to enable voice vlan in fast eth ports as below.
L3 vlans are created in core switches which is cisco 6509
vlan 1 - data vlan
vlan 2 - voice vlan
in cisco 3524
-----------------
int fa0/1
switchport access vlan 1
switchport voice vlan 2
speed 100
duplex full.
if i use the above configs, the phone which is connected to interface fa0/1 is not taking ip from dhcp server. even it didn't work with static configs.
while troubelshooting, i have configured as below and it's started working..
int fa0/1
switchport acces vlan 2
speed 100
duplex full.
in this case i can't use this port for data connectivity where as it's required for data too. can anyone help me to understand? also please help me to overcome this issue.
Thanks..!
12-05-2011 07:17 AM
If i'm not wrong your switch doesn't support voice vlan, try to configure interface as trunk dot1q, and set data vlan as native. I suggest you as cisco best practice to don't use vlan 1 due to security reasons.
Let us know if it was usefull.
Fabio
12-05-2011 08:27 AM
Hi,
Can you try this config on the 3524 interface
!
interface FastEthernet0/1
switchport trunk encapsulation dot1q
switchport trunk native vlan 1
switchport mode trunk
switchport voice vlan 203
spanning-tree portfast
no shut
!
HTH
Alex
03-29-2014 04:30 AM
Use this config on switch 3524:
!To create vlan
Switch#vlan database
Switch(vlan)#vlan 10 name Data
Switch(vlan)#vlan 100 name Voice
!To assign aport to voice vlan
interface FastEthernet0/1
switchport access vlan 10
switchport trunk encapsulation dot1q
switchport mode trunk
switchport voice vlan 100
!
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