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raja Saravanan
Beginner

voice VLAN vs Data VLAN

Hi,

I have a call manager connected to switch with three VLANS configured, one voice vlan and two data vlan,

int f0/1-2

switchport mode access

switchport access VLAN 200

int f0/3-23

switchport mode access

switchport access VLAN 300

switchport voice VLAN 100

intf0/24

switchport mode trunk

switchport trunk encapsulation dot1q

int g0/0.100

encapsulation dot1q 100

ip address 172.100.1.1 255.255.255.0

int g0/0.200

encapsulation dot1q 100

ip address 172.200.1.1 255.255.255.0

int g0/0.300

encapsulation dot1q 100

ip address 172.300.1.1 255.255.255.0

I am able to access the call manager if I assign it an IP under data VLAN range, but if I assign IP under voice VLAN( 172.100.1.0/24 ) i am not able to access the call manager, If i assign an IP address to the call manager under voice VLAN I am not able to ping even the default gateway 172.100.1.1

What may be the issue.

Regards,

Shaggy

5 REPLIES 5
mrdogantr
Beginner

Hi,

     try this.

int g0/0.100

encapsulation dot1q 100

ip address 172.100.1.1 255.255.255.0

int g0/0.200

encapsulation dot1q 200

ip address 172.200.1.1 255.255.255.0

int g0/0.300

encapsulation dot1q 300

ip address 172.300.1.1 255.255.255.0

hth

Muammer

Hi,

Thanks for your help, I have tried the same config which you have provided, please refer the config given by me, please help me to figure why I am not able to access the call manger as per the scenario mentioned by me.

Hi Mario/Muammer,

Thank you very much for your support, I got the issue fixed, I forgot the concept that Data devices does not do VLAN tagging, so when I assigned an IP in the voice VLAN range to the call manager, the switch tagged it with data VLAN, as both the VLANS were enabled on that switch, now I have cleared the problem.

Regards,

Shaggy

Message was edited by: raja Saravanan

Mario Garcia
Participant

Raja,

You need to make sure that the "switchport access VLAN100" is set on that port that is connected to the CM, if you want the CM to have an IP on the voice subnet.

-Mario

Hi Mario/Muammer,

Thank you very much for your support, I got the issue fixed, I forgot the concept that Data devices does not do VLAN tagging, so when I assigned an IP in the voice VLAN range to the call manager, the switch tagged it with data VLAN, as both the VLANS were enabled on that switch, now I have cleared the problem.

Regards,

Shaggy