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New Member

DHCP for IP Phones

Here is the situation,

I have a (2) subnets:

172.10.1.0/24 for Data, VLAN 15

172.11.1.0/24 for IP Phones, VLAN 200

Computer is connected to IP Phone, and IP phone is connected to IDF Switch 2950:

Here is the port configuration of 2950:

fastethernet 0/1

switchport access vlan 15, (reprsents data vlan)

switchport mode access

switchport voice vlan 200, (represents voice vlan)

spanning-tree portfast trunk

2950 is connected to 6500 Intervlan Switch.

I have DHCP enabled, but the problem is that both computer and IP Phone getting the IP addresses from the scope 172.10.1.0/24 subnets. As far as computer is concerned, I am happy because its getting the ip address from the correct subnet, but I want IP Phone to get the IP address from its own subnet 172.11.1.0/24 throught DHCP.

Is there a way to do it.

Regards,

1 REPLY
New Member

Re: DHCP for IP Phones

try this

switchport access vlan 15

switchport trunk encapsulation dot1q

switchport trunk native vlan 15

switchport trunk allowed vlan 1,15,200

switchport mode trunk

switchport voice vlan 200

switchport priority extend cos 0

spanning-tree portfast

this should work

hope this helps

scott

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