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PBX extension registration over mesh

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w8erd
PBX extension registration over mesh

I am unable to get my PBX to register an extension over the mesh. See the diagram for my setup.
If I remove the mesh link, the registration works fine.  All the components work fine individually.
What am I doing wrong and how can I fix it?

Bob W8ERD

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nc8q
nc8q's picture
PBX as a service on an AREDN Network

Hi, Bob:

My PBX and all its configured extensions are part of a local AREDN Network.
My PBX is a LAN service of one of my AREDN nodes.
My PBX is not a service on the LAN of my home router.
There may be reason why you put your PBX outside your AREDN network.
Is there a requirement for having your PBX on the LAN of your home router
instead of the LAN of your AR300 or Bullet?

Your topic:
"PBX extension registration over mesh "
However, from your PDF, the TP-Link router and the PBX are outside of your 'mesh'.

Please rephrase.

73, Chuck

w8erd
The problem is I cannot get

The problem is I cannot get the GXP phone to register as an extension when it is connected via the mesh to the router and pbx.
Without the mesh, it registers fine.

Bob W8ERD

K6CCC
K6CCC's picture
Best (wild) guess is the router.

Since you gave no configuration information, I can only guess.  My guess is something not configured right in the TP-Link router.
 

w8erd
Thanks Chuck - 

Thanks Chuck - 

There are many other extensions connected to the pbx via the router, and they work OK.
I have no services defined. Please send me the service definitions I need to use.
I am attaching the big picture to show you what I am trying to do.

Bob W8ERD
 

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nc8q
nc8q's picture
Accessing a service (PBX) on the WAN side of an AREDN node

Hi, Bob:
 
Nice picture of the system.
The Bullet will need to share its WAN.
3.22.6.0 and earlier will need: 'Allow others to use my WAN' enabled (not default) and
'Prevent LAN devices from accessing WAN' left disabled: (default).
In the current production:
aredn.@wan[0].olsrd_gw enabled (this is a change from default)

The 'Wireless Router' likely does not 'advertise' the PBX with a domain name, so
registration will be by IP address at the 'Mesh telephone'.

I think.

73, Chuck

 

K6CCC
K6CCC's picture
Although you did not mention

Although you did not mention it, I am gathering that everything on your second drawing is operating on the LAN side of the router.  You don't show any WAN connection, so it would appear that the router is really functioning only as a switch (and maybe a DHCP server).  What is the network config for the AREDN nodes (in particular the one connected to the router)?
 

w8erd
The aredn node has no network

The aredn node has no network configuration.  Please tell me how I should configure it.

Bob W8ERD

K6CCC
K6CCC's picture
Since I can't you to

Since I can't you to volunteer any useful information, let's play 20 questions...
1)  Was my speculation correct that the router is only operating as a switch and all devices are on the LAN side of the router?
2)  Is there a WAN connection to the router?  If yes, what?
3)  Is the router acting as a DHCP server?
4)  Is the AREDN node that is connected to the router acting as a DHCP server?
5)  Is the phone trying to reach the PBX via an IP address or a URL?
More after those answers....
 

w8erd
1. yes, although some day I

1. yes, although some day I might like to connec to the internet.
2. No
3. yes
4. yes. 
5. IP address

Bob W8ERD.       Thanks for your help!

K6CCC
K6CCC's picture
Multiple DHCP servers = BAD!

First problem that you have is that your LAN has two DHCP servers.  That will cause LOTS of problems mostly relating to things not able to communicate even though they are on the same physical LAN.
For this application, the easiest would be to disable DHCP on the router and let the mesh node that is connected to the router function as the DHCP server.  You would need to change the mode on the AREDN to something larger than the default 5 devices or else you will run out of DHCP addresses.  Doing it this way would result in all devices getting a 10.x.y.z AREDN mesh IP address.  You would also want to assign a DHCP reservation in the AREDN node for the PBX so that it always gets the same IP address.  Note, if you set a static IP in the PBX (must be in the address space for the AREDN LAN given by the AREDN node), still give the PBX a DHCP reservation in order to prevent the AREDN node from assigning that IP to some other device.  Then you would simply tell the phone that the PBX can be found at whatever 10.x.y.z address it is assigned.
One more comment.  Although I said this would be the easiest, it may not be the best - especially if you later plan on adding internet into the equation.  But that's a discussion for a later day.
 

w8erd
Bad news

Bad news

Turned off dhcp in the router.
turned on dhcp in the bullet
checked the "allow others..."box in the bullet.

Now - The bullet is doing nothing.  I cannot log into it even with its IP address.
Other nodes do not see the bullet as being on the air. It has lights.
I cannot log into the router.
I rebooted the bullet.No change.
Rebooted the router. No change.
Restarted PC several times. No change.
No Hope

nc8q
nc8q's picture
Now - The bullet is doing nothing.

Is the Bullet getting an IP address from the Wireless Router?

No, without a VLAN switch there is no WAN available on the bullet.

Leave DHCP enabled on the Wireless Router, Bullet, and AR300M.

In: https://www.arednmesh.org/sites/default/files/portable%20post%20office.pdf
If you could swap the AR300M and the Bullet, the AR300M has a WAN port to access the Wireless Router and
obtain an IP address on the Wireless Router's LAN.

Option 2:
Remove the Bullet and let the AR300M operate in client Wi-Fi mode to connect to the Wireless Router.

Option 3:
Swap the Bullet and AR300M
IP Phone gets an IP address from the Bullet's LAN.
Bullet RF links with the AR300M.
The WAN port of the AR300M gets an IP address from the Wireless Router.

 

w8erd
I was unable to log into the

I was unable to log into the router to change anything, so I pushed its reset button.
Now it seems to be back to normal. Its dhcp is on.

I was unable to log into the bullet and it did not show up as a neighbor in the ar300.  
Cycling its power did not help.  It has lights on, but is otherwise dead. Should I push its reset button?


I have another bullet which I substituted for the first one.  I can log into it and it shows up as a neighbor in the AR300.
Its DHCP  is off.

The AR300 DHCP is on.

So it seems like we are back to square one.

Now starting from here, what should I change?

Thanks for all your help!

Bob W8ERD

K6CCC
K6CCC's picture
Leave DHCP enabled on the

Leave DHCP enabled on the Wireless Router, Bullet, and AR300M.

NO!  The AR300 is not an issue as it's a separate physical LAN.  The LAN of the Bullet and the router are the same physical LAN and you should never have two active DHCP servers on the same physical LAN.  That will cause LOTS of problems.  If the two are disconnected from each other (testing or setup for example), then they can both have DHCP enabled, but not when they are connected.

 

nc8q
nc8q's picture
All are on separate LANs

Hi, Jim:

In my #13
https://www.arednmesh.org/comment/20242#comment-20242
and using Bob's diagram
https://www.arednmesh.org/sites/default/files/portable%20post%20office.pdf

The WAN of the Bullet would be in the LAN of the Wireless Router.
But Bob has no VLAN switch, thus no access to the WAN of the Bullet.

Option 2:
The Bullet (and its unavailable WAN) is omitted.
The AR300M configured as a Wi-Fi client would be in the LAN of the Wireless Router.
The IP Phone gets an IP address from the AR300M (AR300M DHCP is enabled to serve the IP Phone).

Option 3:
The Bullet and the AR300M swap places in the diagram.
The Bullet is default AREDN and provides an IP address to the IP Phone via DHCP.
The AR300M is default AREDN, its WAN port connects to a LAN port on the Wireless Router.
The Wi-Fi of the AR300M is the LAN of the Wireless Router.
The LAN of the AR300M is separate and unused.

There is no more than 1 DHCP server on any LAN.

I think. :-|

3s, Chuck
 

K6CCC
K6CCC's picture
No.  His drawing (what I'm

No.  His drawing (what I'm working from) has the bullet connected directly to the router (functioning as a switch and DHCP server).  Since it is not VLAN aware, that means that the LAN of the bullet and the LAN of the router would both be directly connected.  If both the Bullet and router have DHCP enabled, there are two DHCP servers on the same LAN - which is BAD!
This whole thing would work if the router has DHCP disabled (so it is functioning ONLY as a switch), the Bullet provides DHCP for everything on the drawing.  That would mean everything on the drawing would get a 10.x.y.z address from the Bullet.  Otherwise there needs to be something that knows how to route and be VLAN aware.  The hardware shown does not have that capability.
 

nc8q
nc8q's picture
His drawing

+1 K6CCC solution.
I see 11 IP addresses needed, so need at a minimum:
/setup '13 Host Direct' on the Bullet.

 

w8erd
One thing I did not make

One thing I did not make clear.
The mesh phone and the AR300. together with a battery, make up a portable telephone system, which I plan to carry around in the field.

Bob

K6CCC
K6CCC's picture
That concept was pretty

That concept was pretty opbvious from the drawing.
 

nc8q
nc8q's picture
portable AR300M and IP Phone.

An AR150 would have worked as it and the Bullet are SISO devices.
At present you are mixing SISO and MIMO.
https://arednmesh.readthedocs.io/en/latest/arednHow-toGuides/siso-mimo.html
"Whenever possible try not to mix device types on radio links.
As a general rule, use MIMO-to-MIMO for most types of RF links."

I see 3 options

Option 1:
Use the Bullet with factory OS configured as a Bridge on the LAN of the Wi-Fi Router.
Let the AR300M be a client to the Wireless Router using the Bullet as a transparent bridge.

Option 2:
Get a VLAN switch so that the WAN of the Bullet can get an IP address from the LAN of the Wi-Fi Router.

Option 3:
Omit the Bullet and configure the AR300M as a client to the Wireless Router.

3s, Chuck
 

w8erd
So my ARM300 is MIMO. It has

So my ARM300 is MIMO. It has 2 little antennas. Can I change to better antennas? Do the antennas need to be identical?
What about the spacing and polarization of the 2 antennas?

Bob W8ERD
 

w8erd
Still working on this.

Still working on this.
Turned off dhcp in the router.
Turned on dhcp in the bullet and set to 13 hosts.

Very mixed results.
The bullet registers:
5 cell phones (all of them)
only 2 corded phones (out of 4)
not the router
not the pbx

Suggestions?

Bob W8ERD

nc8q
nc8q's picture
The bullet registers:

To be semanticly correct:
The Bullet does not register, but it may offer and reserve IP addresses via DHCP.
VoIP phones 'register' with a PBX.
In the configuration offered, the Wireless Router does not get an IP address...it is only a switch.

Uh, not sure about the pbx not getting an IP address.

View/share '/cgi-bin/ports' to ensure that 13 addresses were not consumed somehow.
In your diagram, I am seeing 12 devices needing an IP address via DHCP, yet there is no workstation.
Could a workstation or laptop or tablet or other device be consuming the 13th IP address?

73, Chuck


 

w8erd
Thanks Chuck.

Thanks Chuck.
Please tell me what to do to get View/share....

Yes the PC is attached to the router.  The bullet does not show it as having an assigned address, yet it works if I log into the
IP address of the bullet.

Bob W8ERD

w8erd
Also if I want to turn dhcp

Also if I want to turn dhcp on the router, how do I do that if I cannot log into it?

Bob

nc8q
nc8q's picture
how do I do that if I cannot log into it?

Perform a 'factory reset'.
 

nc8q
nc8q's picture
View/share '/cgi-bin/ports' to ensure that 13 addresses were not

"View/share '/cgi-bin/ports' to ensure that 13 addresses were not consumed somehow."
View: A screen capture attached to a reply to #23.
Share: Using your mouse...click and drag and copy the portion of the screen containing 'Current DHCP Leases' pasted into a reply to #23
e.g.

Current DHCP Leases
nc8q-adsb    10.174.162.42     b8:27:eb:27:98:f5        
nc8q-meshchat    10.174.162.43     b8:27:eb:d4:20:55        
nc8q-teamtalk    10.174.162.34     dc:a6:32:00:99:35        
nc8q-bpq    10.174.162.38     b8:27:eb:9b:0f:d6        
nc8q-mesh-server    10.174.162.36     b8:27:eb:fb:ff:80        
nc8q-phone    10.174.162.41     00:0b:82:64:37:a7        
nc8q-raspbx    10.174.162.45     b8:27:eb:09:3b:09        
nc8q-mesh-map    10.174.162.44     b8:27:eb:1d:76:ef

I suspect that your Bullet had already assigned 13 addresses and had no more available for the 
"only 2 corded phones" and "not the pbx"

73, Chuck

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w8erd
Sorry I don't know what "#23"

Sorry I don't know what "#23" means.
As another experiment, I set to the bullet to 29 hosts.
No. change.It still assined addreses to 2 of the 4 corded phonesand nothing else.

Bob. W8ERD

nc8q
nc8q's picture
I set to the bullet to 29 hosts.

"As another experiment, I set to the bullet to 29 hosts.
No. change.It still assined addreses to 2 of the 4 corded phonesand nothing else."

Hi, Bob:

Good,
Let us stay with 29 hosts as you have 12 in your diagram.
Let me try some tests with my bullet and some other devices with 3.22.8.0 and see if I can get 12+ reservations.

With 3.22.8.0:
Anyone else out there with a node that does > 12 IP reservations?
...with a Bullet that does > 12 IP reservations?

73, Chuck
 

w8erd
As an experiment, I turned

As an experiment, I turned off all the cell phones.  The bullet then showed only the 2 corded phones as before.
So it is not running outnof addresses.

Bob W8ERD

nc8q
nc8q's picture
not running outnof addresses.

Hi, Bob:

Not necessarily.
DHCP address reservations are likely retained for 1 week.
A warm boot might reset the reservations.
Need to view the 'DHCP Address Reservations' section of 'cgi-bin/ports'.

73, Chuck
 

w8erd
I figured out #23.  

I figured out #23.

 

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nc8q
nc8q's picture
The bullet registers:

The Bullet should 'reserve' and 'lease'.
 

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nc8q
nc8q's picture
Not getting addresses, reservations, leases...

"only 2 corded phones (out of 4)
not the router
not the pbx"

Ensure that those devices are requesting an address via DHCP.
Maybe try with only attaching those devices
(and the Wireless Router configured as a switch)
after a reboot of the Bullet.
If you are using a computer to view your network devices, from where/what is it getting its address?
From the Bullet or the AR300M?

Chuck

 

w8erd
 For the 2 "missing"

 For the 2 "missing" telephones, If I uplug and replug the ethernet cable between the telephone interface and the 4 port switch, then the bullet assigns addresses to them both.
For the cell phones, the bullet assigns addresses as soon as they are turned on.

For the PBX, unplugging or power cycling causes no change, It still has the address it had back when the router was issuing addresses.

The PC is getting its address from the bullet.

If I power cycle the bullet, all the above address assigments remain the same except for the PC.
The PC then gets its address from the AR300.

Bob W8ERD

nc8q
nc8q's picture
For the PBX, unplugging or power cycling causes no change, It st

"For the PBX, unplugging or power cycling causes no change, It still has the address it had back when the router was issuing addresses."

Hi, Bob:

Perhaps configure the PBX to request an address via DHCP or
the PBX is requesting an address but cannot reach the Bullet.

73, Chuck
 

w8erd
since we have to get an

since we have to get an address for the PBX, I tried various things:
changed the cable from router to PBX.
changed the pbx to  a different port on the router
connected PBX directly to bullet
restarted bullet and PBX
no change.
I don't understand how to have the PBX request an address. Is that not the normal way?
What am I missing?
I could reset the router and that would turn on its dhcp to enable me to log into the PBX if I need to change something there.

Bob W8ERD

nc8q
nc8q's picture
CONFIGURING THE UCM6102 VIA WEB GUI:

http://www.grandstream.com/hubfs/Product_Documentation/UCM6102_quick_installation_guide.pdf

CONFIGURING THE UCM6102 VIA WEB GUI:
1. Connect the computer to the same network as the UCM6102.
2. Ensure the UCM6102 is properly powered up and shows its IP address in the LCD.
3. Open a web browser on the computer and enter the web GUI URL in the format:
http(s)://IP-Address:Port
The default protocol is HTTPS and the default port number is 8089.
4. The web GUI login page will show (see Figure below). The default username and password for administrator are “admin”. 5. For the detailed information to configure SIP Extensions, PSTN lines, SIP trunks and all the other system settings via web GUI, please download the UCM6102 user manual here: http://www.grandstream.com/support

Hi, Bob:

Tell us about item 2.
Tell/show us the DHCP address range of the Bullet.
 

Chuck
 

w8erd
Thanks again.

Thanks again.
I can now log into the PBX normally, and I fixed some incorrect settings.
The bullet address range is 34-62.
But the GXP phone does not get an address assignment from the bullet.  It just shows 0,0,0,0 if I set its dhcp server to the bullet.

Bob W8ERD

nc8q
nc8q's picture
It just shows 0,0,0,0 if I set its dhcp server to the bullet.

Hi, Bob:

" It just shows 0,0,0,0 if I set its dhcp server to the bullet."

I don't think a DHCP server should 'set' by a client.
IIRC, the client sends a DHCP server request to FF:FF:FF:FF:FF:FF and accepts the first DHCP server that responds.
https://en.wikipedia.org/wiki/Dynamic_Host_Configuration_Protocol#Operation
I have Grandstream GXP1630 and GXV32765 phones and have never 'set a DHCP server'.

Hey, wait a second,
in your diagram the Grandstream phone should be getting an IP address from the AR300M16,
not the Bullet !

https://www.arednmesh.org/sites/default/files/portable%20post%20office.pdf
 

73, Chuck

w8erd
In the telephone basic

In the telephone basic network settings, it asks for a preferred dns server. Is that something else?

Yes I know the phone should go to the AR3000 for dns, but I was experimenting to see if the phone was on the same network 

as the PBX, it would be registered.  I still cannot get the phone registered with the PBX when it is connected to the AR300.

Bob

nc8q
nc8q's picture
My GXP1630: preferred dns server

Hi, Bob:

0.0.0.0

  http://nc8q-phone-1073/#page:network_basic
NETWORK -> Basic Settings -> Preferred DNS Server: Was, likely, left untouched.
However, my settings are DHCP.
That setting is under 'DHCP'.
'Preferred DNS Server' is under 'Static', which I do not use.

Please, no more experimenting. Unknown to me experimentation on your end makes it difficult for me to assist you.

"if the phone was on the same network as the PBX, it would be registered."
The Grandstream phone is not on the same LAN as the PBX!
The phone is on the LAN of the AR300M16.
The PBX is on the LAN of the Bullet.

As in your diagram, the Grandstream phone is in the network of the AR300M16.
If the AR300M16 is AREDN linked with the Bullet and the PBX is advertised on the LAN of the Bullet,
then the phone knows the AR300M16 as the DNS server and
the AR300M16 knows the route to the PBX is via the Bullet and
the Bullet knows the route to the PBX.

Please confirm that the Grandstream phone is getting an IP address from the AR300M16.
Please confirm that the AR300M16 is linked with the Bullet.
Please confirm that the PBX is advertised on the Bullet.
Please confirm that the PBX appears with the Bullet on the /cgi-bin/mesh page of the AR300M16.
Please confirm that the AR300M16 appears on the /cgi-bin/mesh page of the Bullet.

3s, Chuck

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w8erd
The phone is getting an

The phone is getting an address from the ARM.
The ARM is linked to the bullet via wireless.
The PBX is not advertised on the bullet because I don't know how.
Please give me the Advertised Services text line to make this happen.
So the PBX does not appear with the Bullet on the mesh page of the ARM.
The ARM appears on the mesh page of the bullet.

Bob

 

nc8q
nc8q's picture
The goal is to have the PBX be reachable from the AR300M16

Hi, Bob:
Sorry, stike-out the parts with advertising. Advertising is not needed.
The PBX's 'DHCP Address Reservations' are required.
Attached is a screen shot of how the PBX should appear on the AR300M16.

3s, Chuck

 

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w8erd
Please show me what the Port

Please show me what the Port Forwarding, DHCP and Services should look like on the bullet, referring to the PBX.

Bob

nc8q
nc8q's picture
Bullet needs a DHCP reservation with the PBX

Please show me what the ... DHCP ... should look like on the bullet, referring to the PBX.
 

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nc8q
nc8q's picture
Make the PBX appear with the Bullet

Hi, Bob:

Navigate to the '/setup' page of the Bullet.
Fill in the  selections for 'Hostname    IP Address    MAC Address' from the values in 'Current DHCP Leases'.
Click 'Add'.
Wait 20 seconds.
Now the AR300M16 and the phone on its LAN can route to the PBX.

3s, Chuck
 

w8erd
Here are pages from the

Here are pages from the bullet (name mobile).  The ARM name is Telephone.
What do I need to change on these pages?

Bob

Image Attachments: 
nc8q
nc8q's picture
Here are pages from the bullet (name mobile).

Hi, Bob:
 
The PBX should appear under 'Current DHCP Leases'.
This issue needs fixing.
The PBX should be configured as a DHCP client and
should be obtaining a DHCP reservation on the Bullet.
Once the PBX appears in'Current DHCP Leases' it can be added to 'DHCP Address Reservations'.

Also missing:
Up to 4 analog telephone adapters should also have Current DHCP Leases.
Up to 4 cell phones should also have Current DHCP Leases.
a 'cell phone acting as an interface should also have a Current DHCP Lease.

You may need to set the Bullet's LAN to '29 host Direct'.
Including all the items in your diagram plus 'Bob-PC', I see 12 reservations needed.
What device is the Hostname '*' ?

3s, Chuck


 

w8erd
the PBX appears as * with its

the PBX appears as * with its reservation.
29 hosts is set in the bullet. I turned on the corded phones. I don't like to have the cellphones on too often as that
drains their batteries.

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