Cisco VOIP to Avaya. Options 242, 176 etc? Phones are staying in Data Vlan and not going over to Voice Vlan.

Could someone please help me understand what needs to be done transitioning from Cisco VOIP to Avaya?  Specifically, Option 242 that needs to be configured on DHCP Voice Pool? The client claims that the phones are staying in Data Vlan (Vlan 1) and not going over to Voice Vlan (Vlan 900).

The setup is pretty straight forward. There is one building (3 closets total) and only 2 Vlans: Data and Voice.  

Vlan 1 10.12.0.0/16 Data
Vlan 900 10.13.0.0/16 Voice

The Cisco 2921 Router is configured for Voice DHCP like this:
!
ip dhcp pool VOIP
 network 10.13.0.0 255.255.0.0
 default-router 10.13.0.1
 option 150 ip 10.13.0.10
 dns-server 4.2.2.2

10.13.0.10 is the Call Manager IP.

I believe there is an Avaya server (controller) onsite that will be acting as DHCP for the new Avaya phones.

What needs to be done for the Avaya phones to obtain 10.13.x.x IP addresses and not 10.12.x.x ? I've read about Options 242 (or 176) that need to be configured but I'm not sure how to go about it. I haven't really worked with Avaya phones before.

What about LLDP? The switches are Cisco, 2960x. Switchport are configured to access vlan 1 and Voice vlan 900.

Any help would be appreciated!
Davide MinettiAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

kevinhsiehCommented:
Yes, you need LLDP enabled on the switches. You also need to set the DHCP options for your phones. Which option you need depends on the model phones you have. I believe I have option 176 and 242 set on my network using Microsoft DHCP. There are many parameters that can be set. I suggest reviewing the Avaya documentation for your phones.
ArneLoviusCommented:
LLDP is nice to have, but not required

A Full DHCP option 242 would look something like

MCIPADD=10.201.1.5,10.40.41.5,MCPORT=1720,HTTPSRVR=10.200.100.41,HTTPDIR=avaya,L2Q=1,L2QVLAN=201

MCIPADD is the address(es) of the call server(s)
MCPORT is the port used on the call server
HTTPSRVR is the address of the web server used for the 46xxsettings and can also hold backups of phones and new firmware
HTTPDIR is the directory on the webserver
L2Q is for setting whether VLAN tagging should be used
L2QVLAN is the tagged VLAN to use

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Avaya

From novice to tech pro — start learning today.