Zero Config not working with UCM6204 firmware 1.0.19.21


#1

Hi, we are installing a new UCM6204 with some GXP2170 and GXP1620 phones and Zero Config finds the phones but not create the config files for them.


#2

Are the phones in the same subnet?

Is there any special config made to the ZeroConfig?

Have you authorized the subnet in ZC config?

Run a packet capture between UCM and phone and see if the phone receives the NOTIFY request.


#3

make sure that “Verify host when using HTTPS” is set to no


#4

Thanks for the reply fmarcoux96.

Same subnet and authorized un ZC, no ZC special config.
Does the UCM have any tool to capture the packets or I need to use some other tool?


#5

I didn’t touch the phones config, is this setting in the UCM?
With another UCM and phones on another client a while ago, I didn’t touch the phones an ZC provision them ok.


#6

There is a built-in tool. However, check @damiano70 answer first


#8

On phone. Under Maintenance -> Firmware Upgrade if I remember correctly.


#9

yes, the “Validate Hostname in Certificate” and “Authenticate Conf File” are set to no in the phones, is the default setting.

I think maybe the UCM is not creating the config files, because the “Config Server Path” on the phones is changed to the UCM IP address and port.

And if I try to open on a browser the config file (https://192.168.88.95:8089/zccgi/cfg000B82C0EE87 for example) I get no XML file.


#10

What config are made for the phone? Only an account and MPKs or also custom P-codes?


#11

In the phones nothing, they are factory reseted.
In the UCM for the phone, just the account, nothing else.


#12

Did you assign the phone’s extension via Zero Config?

Can you please show a screen show of the phone’s Update & Config page on the phone’s web GUI.


#13

Yes, I assign the phone’s extension via ZC.

Here the phones’s Update & Config:



#14

And 192.168.88.95 is your UCM?

In Zero Config -> Global Policy -> Maintenance -> Upgrade and Provision can you please set Firmware Source to Local UCM Server and Allow DFHCP Option 43/66 to no.

Do that and then reboot the phone. Then show me these screens again.


#15

Also, please note that Zero Config is reliant on multicast working on your network; make sure your network infrastructure supports this.


#16

The network is a Cisco SW almost at factory default.
One thing I forgot to mention, the update and reboot commands on the ZC page, do not make the phones update or reset, and the Create Config column is empty for all the 3 phone I have connected for testing.
Done the settings on Global Policy and here the screen of the same phone as before:


image

I make a packet capture during update and reset command and while the phone reset…


#17

Sounds like a multicast issue.

Is the phone plugged into the same switch as the UCM? I assume no VLANs or QOS to get in the way.


#18

Yes, all in the same switch, no VLANs, no QoS, nothing. I factory defualt the SW before using it, It’s a test SW.


#19

In the packet capture I see that the phone is trying to access TFTP on the UCM and get a destination unreachable (port unreachable) error, and if I try to connecto to port 69 on the UCM it is not open, is this ok?


#20

No. You have set it to HTTPS. It should not be requesting TFTP.

What firmware is currently on the phone? If not current, then I sugest you do that next.

You might be best working with the Grandstream help desk.


#21

One phone has old firmware and other the lastest, and both do the same.
I will try with help desk, thanks.