Our local phone company is installing a Mitel solution in a building that was recently constructed. Part of this task is to change our traditional phone system here in IT to VoIP. The problem is that phones (5320e) here in the IT building do not connect to the Mitel controller. They retrieve configuration information (VLAN ID, QoS Priority, Controller IP Address, etc.) from our DHCP server, but will not get pass 'DHCP Discovery' when booting. Here's what I've got at the moment: • I have all the necessary DHCP options configured on our Windows DHCP server. • The Mitel controller and all working phones are in VLAN 202 and subnet 172.20.200.0/24 • The nonworking phones are in VLAN 201 and subnet 172.18.200.0/24 • I put a computer in VLAN 201 and was able to access the controller on a multitude of ports. So getting to and from the controller shouldn't be a problem.

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Lyrics Ave Maria Perry Como there. • I placed a phone at IT in VLAN 202 and was still unable to get pass 'DHCP Discovery' • I statically configured network information on the phone. I could PING the controller, but it still stayed at 'DHCP Discovery'. NOTE: The phone was asking for configurations I haven't seen before, so I'm not 100% sure it is configured properly. If anyone has some insight or documentation on this process I would greatly appreciate it.

Erik, I didn't go as far as packet sniffing. I posted a topic regarding this same issue on and was able to find out what the root cause was. It turns out there was an issue with a couple of the scope options I had configured for the VoIP subnet.

If Options 132 (VLAN ID) and 133 (QoS Priority) are enabled on the scope that the phone is trying to get it's FINAL IP address from, the phone will not boot properly. The technician performing our install did not inform me of this. Thus, I was under the impression that the scope was configured properly and was beating my head against the wall looking at everything else..-' C'est la vie. Thanks for the assistance guys! I forgot to mention that the computer I used to test connectivity to the controller is able to obtain IP information from the DHCP server. Mit 66 Jahren Instrumental Download Kostenlos Mp3.

In regards to the other, it is technically possible to put multiple subnets on one VLAN and visa-versa. However, every book I've ever read that goes into details about designing and configuring networks recommends a 1:1 relationship between subnets and VLANs. I didn't state that it is best practice to separate VLANs per building. Simply that our design has different subnets per building to make routing more efficient. 172.16.X.X = Building A, 172.17.X.X = Building B, etc). We have a very similar (maybe same?) problem with our phones. Grandstream GXP1200s.

They're in their own vlan but won't get ip addresses, even though a workstation plugged into that vlan will. This happened when we started using Windows Server 2012 for DHCP.

Our workaround was to set up a basic Linux VM to be the the dchp server just for the phones. Our core switch ip helper-address for the phone vlan points to this server; all other vlans helper-addresses point to the Windows Server. Not an answer I suppose, but a workaround.

Once I got everything working I put the cause on the back burner. My initial investigation showed a possible cause as being maybe related to the dhcp responses from the Windows server -- e.g. Packets not making it back to the phones. Have you done any packet sniffing?

Erik, I didn't go as far as packet sniffing. I posted a topic regarding this same issue on and was able to find out what the root cause was. It turns out there was an issue with a couple of the scope options I had configured for the VoIP subnet. Driver Mustek Flatbed Scanner Se A3 Usb 600 Pro X. If Options 132 (VLAN ID) and 133 (QoS Priority) are enabled on the scope that the phone is trying to get it's FINAL IP address from, the phone will not boot properly. The technician performing our install did not inform me of this.

Thus, I was under the impression that the scope was configured properly and was beating my head against the wall looking at everything else..-' C'est la vie. Thanks for the assistance guys!