3300 on a shared LAN

[biglebowski]

We have a small office setup - 3300 with 6x IP phones and an SBS 2008. At the moment the 3300 is on a different switch to the servers/workstations as it causes DHCP problems on the same LAN. The SBS 2008 has to have DHCP enabled otherwise it will not work.

Can I set the phones to get their IP addresses from the SBS DHCP scope and if so what options do I need for the phones to register with the 3300?

Is there a guide or kb article on how to set this up?

Thanks

"Anything that’s invented between when you’re fifteen and thirty-five is new and exciting and revolutionary, and you can probably get a career in it.
Anything invented after you’re thirty-five is against the natural order of things."

 

[Wythefan]

In order to prevent any other device except a Mitel IP Phone from getting an IP from the Mitel DHCP server, follow these steps

1/. Give your IP Address Range the following name: ipphone.mitel.com

2/. Enable the Client's class ID must match name option in the IP Range.

This causes the DHCP server to ignore all non-mitel IP Phone requests for an IP address. Please note that controller must be running 7.0 software or higher. As well if any new phones are added, then this option needs to be turned off until they upgrade their flash for the first time.

 

[RossBC]

I have run into the same problem. Unfortunately, even with the settings given by Wythefan, the SBS server will complain about another DHCP server on the network.

I have only played with the DHCP/option 125 helper utility for a windows DHCP server and not sure if it works for 2008. I found it rather frustrating to try to convince the IT fellow to let me run it on his server.

for only 6 sets, I would simply static the RTC/TFTP address in each phone (and the VLAN/Priority if it is a CXi) and let the SBS server give out the rest of the settings via DHCP. It is a bit of an inconvenience to have static settings on the phones for ongoing additions and replacements, but I find you save so much time at the time of install, and you are not dependant on another person doing their work correctly to have the phones operate, that I feel it is worth it.