IP Offic as DHCP

[shermosillo]

I have a scenario where I have a voice vlan with DHCP being provided by the IP Office. The data vlan is being provided by Windows server. The phone is receiving the correct tag but the phone just sits on "Waiting for LLDP". I opened a monitor trace on the IP Office and see this error:

697315816mS DHCP: DHCP type=DHCPMsgDiscover HTYPE=01
697315817mS DHCP: DHCP type=DHCPMsgDiscover HTYPE=01, 172.16.1.48
697315817mS DHCP: DHCP::SetState, 172.16.1.48: Returned->Checking
697316187mS RES: Wed 3/10/2012 16:35:58 FreeMem=60579692(2) CMMsg=7 (8) Buff=5200 914 999 7423 5 Links=5232 CPU=11/13/2703/32710/43120/0
697316187mS RES2: IP 500 V2 8.1(43) Tasks=49 RTEngine=0 CMRTEngine=0 ExRTEngine=0 Timer=54 Poll=0 Ready=0 CMReady=0 CMQueue=0 VPNNQueue=0 Monitor=2 SSA=1 TCP=30 TAPI=1 ASC=1 SYS=MNTD OPT=UMNT SDSPD=2034
697316317mS DHCP: DHCP::SetState, 172.16.1.48: Checking->Offering
697316317mS DHCP: DHCP::Unsupported option (43) requested, 172.16.1.48
697316317mS DHCP: DHCP::Unsupported option (26) requested, 172.16.1.48
697316317mS DHCP: DHCP::Unsupported option (7) requested, 172.16.1.48
697316317mS DHCP: DHCP::Unsupported option (12) requested, 172.16.1.48
697316824mS DHCP: DHCP type=DHCPMsgRequest HTYPE=01
697316824mS DHCP: DHCP type=DHCPMsgRequest HTYPE=01, 172.16.1.48
697316824mS DHCP: DHCP::SetState, 172.16.1.48: Offering->Returned

 

[Bas1234]

LLDP Is provided by the switch, so programm the lldp in the switch or turn it off.

___________________________________________
It works! Now if only I could remember what I did...

Dain Bramaged (Avaya Search tool

http://tinyurl.com/bas1234

)
______________________________________

 

[shermosillo]

LLDP is disabled on the switch.

 

[shermosillo]

I just want to clarify that the phone sits waiting for LLDP and then it reboots and gets the vlan tag of 11 like it should. At this point it appears in the monitor trace that the phone sends a request and receives an IP address. The thing I am concerned about is that I am getting the DHCP messages stating that "DHCP: Unsupported option requested".

 

[amriddle01]

Put in a test switch, no VLAN's or anything just the system and the handset, I would wager it will work then. I think you have something wrong in the VLAN/DHCP helper/server programming, this will remove those from the equation

 

[AVAYAPro]

Never a good idea to have multiple DHCP servers. Run DHCP off of the Windows Server.

ACS - IP Office Implement
ACA - IP Telephony Implement
CCNA - Cisco Certified Network Associate
MCP - Microsoft Certified Professional

love me some stars

 

[shermosillo]

I have done that and you are right I have no problems that way. So it sounds like a configuration issue with the switch, correct?

 

[shermosillo]

The IP Office is configured to only provide DHCP to Avaya phones only. I understand about having only one DHCP server, but I guess during the sales process an Avaya rep stated that we could have use the IPO as a DHCP server for the phones and Windows server for the data vlan.

 

[amriddle01]

In theory yes you can, but then the switch must be programmed correctly, so the switchport the server is connected to should not be reachable at all from the voice VLAN and vice versa with the system port and the data VLAN