DHCP on Cisco router

[JezzaT]

Has anyone got Mitel phones booting off a Cisco router using option 125?
I can get it to work with options 128,129 and 130 but not with option 125.

Have it in format option 125 ascii "id:ipphone.mitel.com;sw_tftp=192.168.1.2;call_srv=192.168.1.2;vlan=22;l2p=6;dscp=46"

 

[kwbMitel]

Where does it fail. 1st or second DHCP cycle?

Does it ever display the word "Releasing"?

you should see:

- bunch of bootup stuff
- VLAN X PRI X
- DHCP Discovery
- RELEASING
- VLAN X PRI X
- DHCP Discovery

*******************************************************
Occam's Razor - All things being equal, the simplest solution is the right one.

 

[JezzaT]

Yeh, all works fine with options 128,129 and 130.
If I add 132 and 133 the it releases and it picks up the correct DHCP address.

Problem is that it doesn't see option 125 at all. If I delete the other options and only have option 125 the phone displays "option 128 missing".

 

[kwbMitel]

Has it ever connected and downloaded from the 3300. Some older phones are not aware of option 125 until they've connected at least once.

*******************************************************
Occam's Razor - All things being equal, the simplest solution is the right one.

 

[LoopyLou]

You programing looks correct. I used this as a guide.

The following output was taken from a “show run” output of a Cisco router that is configured for DHCP services. This output is shown here as an example only, please change the IP parameters accordingly to match your network environment

ip dhcp pool DHCP
network 172.20.12.0 255.255.255.0
default-router 172.20.12.253
dns-server 172.20.12.3 172.20.20.3
option 128 ip 172.22.12.2
option 129 ip 172.22.12.2
option 130 ascii "MITEL IP PHONE"
option 132 hex 0000.0016
option 133 hex 0000.0006
option 125 ascii "id:ipphone.mitel.com;sw_tftp=172.22.12.2;call_srv=172.22.12.2;vlan=22;l2p=6;dscp=46"


Notice the following points in the above example:
Mitel 3300 ICP IP address = 172.22.12.2
Voice VLAN ID = 22 (16 IN HEX)
The Data VLAN Subnet ID = 172.20.12.0 /C
Option 125 is entered as ASCII type

 

[JezzaT]

Phones have latest firmware as i've booted them off a 3300 with 9.0.2.18 using options 128,129 and 130.
Option 125 is in the correct format but not working for some reason?????
I'll just use the 128+ options. Thanks.

 

[tlpeter]

Option 125 must be made a cetain way on a win2003 server so it could be very possible that you will never get it working that way

ACS - Implement IP Office
ACA - Implement IP Telephony -- ACA - Design IP Telephony
ACA - Voice Services Management
______________
Women and cats can do as they please and men and dogs should relax and get used to the idea!

 

[drichter12]

The following is a direct cut and paste from an Adtran 3430 router we are using at a customer site. The option info is sufficient for most setups with QOS configured. Hope it helps, the AOS (Adtran OS) is almost interchangeable with the Cisco IOS for this part.

ip dhcp-server excluded-address 10.3.48.1 10.3.48.69
ip dhcp-server excluded-address 10.3.48.200 10.3.63.254
!
ip dhcp-server pool "MyPool"
network 10.3.48.0 255.255.240.0
dns-server 10.1.0.20 10.1.0.21
netbios-node-type h-node
default-router 10.3.48.3
tftp-server 10.3.48.54
option 43 ascii id:ipphone.mitel.com;sw_tftp=10.3.48.54;call_srv=10.3.48.54;vlan=1;l2p=6v6s6;dscp=46v46s26
option 125 ascii id:ipphone.mitel.com;sw_tftp=10.3.48.54;call_srv=10.3.48.54;vlan=1;l2p=6v6s6;dscp=46v46s26
option 3 ip 10.3.48.3


Dale

 

[Mitelpassion]

am sure I saw a HOWTO document on MOL for Cisco routers and DHCP...

 

[slapin]

Might be Cisco... What model of the router and IOS version?

Known to work on 26xx,28xx,36xx,38xx and up routers with IOS 12.4
Samples above are correct and should work