RRC 1258 Support in English > Configuration of Routers, Firewalls, etc

WNCE2001 Additional Questions

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wb0yle:
Well..have my control so it works over the local house lan...and picked up a refurb'd WNCE2001 wireless bridge to talk to my 4G hotspot (I know it will suck up bits...but...)...

Anyway...seeming to having problems getting it all to talk.  I have the control unit set for DHCP to pick it up off the WNCE; the WNCE shows up in the status screen of the hotspot, so I know it's registering and such.

The control unit is set to contact my fixed IP address in the proper screen; and since I have IP phone service for the house, I've moved the SIP port up by one to 5061 bidirectionally to ensure that I don't interrupt the home phone service.

But...no good when trying an end-to-end connection.  Get the busy two=tone signal out of the 480 head when I press the on button, and the amber light on the mic jack on the control side is blinking (power light is a steady green, though), and both lights on the LAN connection are lit, as are the three green lights on the WNCE2001.

So...any thoughts?  Am I missing something here?  Any insight will be most certainly appreciated!

tnx es 73 Bryan WB0YLE

dj0qn:
Bryan,

It isn't clear to me what you are doing....are you trying to connect within the same LAN, or is the problem from the outside? If from the outside, did you test it first within your LAN and then change the SIP address to the external IP number or Dynamic DNS address when you moved it?

I have a checklist of what to follow to make these things work quickly. Drop me a mail at dj0qn (at) darc.de and I will send it to you.

73,
Mitch DJ0QN / K7DX

wb0yle:
It works fine connected to my house lan (and any hardwire connection); it's just when I connect the control unit to the WNCE that it doesn't (and, I tried hooking up a computer to the wnce to surf just to make sure...it works...;)).  All the LEDs on the WNCE are green, the ethernet port lights on the control unit are both on, and the power LED on the front is steady.

What I do notice is that I get a SIP error indication on the status screen of the radio end; difference being, when I am connected locally, the SIP in and out is on the same port; when I connect via the wnce, the radio end is trying to talk SIP back on an ephemeral port (in the 12000s...) which would explain the blinking yellow lights on the mic connector on the front of both units.

Looking at the status page on the radio side, it is seeing the 4G address in the 'other party' field on the status page, just that the External SIP In port changes from all being on 5061 here on the wired lan...which would indicate that it tries (the error on the radio side under SIP status is "SIP Error". 

Thinking something is getting transposed in the handshake?

Will ping you directly...thanks for the help.

73 Bryan WB0YLE

dj0qn:
That is a complex method you are using, through a WLAN bridge and 3G router,
everything would need to be perfect to make that work ok.

Make sure that the bridge has DHCP turned off and the RRC is pulling its IP number off
of the 3G router. If the 3G router has an ethernet port, try connecting directly to it
first. Settings for 3G need to be optimized as well, I can send you some sample settings.
However, it will take some trial and error to make your configuration work.

The other mail will go out now to you.

73,
Mitch DJ0QN / K7DX

wb0yle:
Yeah, I know it's kind of complex...followed the directions in your great document...basically, it's to enable the RR to talk through the wnce to a mobile hotspot (which is on AT&T) so I can transition to the hardline net to my shack.

so...basically what I have is this:

RR <--cat5-->wnce<--wifi-->4G <-------internet------->wrt54G<---DMZ--->RR===TS480

What I'm seeing is that radio end IS seeing the IP address of the remote end, and accepting/logging the remote 4G IP address on the incoming 5061 port for SIP; what seems to fail is that the RR on the radio side is trying to establish the SIP back on a random non-reserved port, which the control side of the equation doesn't know what to do with or where to route it.  Hence, both units (which I've confirmed by running up and down stairs...) end up with blinking amber lights on the front panel (SIP error indication) because the handshake fails. 

So, I know that the 4G net isn't blocking SIP per se; just the non-deterministic return port is lost somehow in translation.

I'm thinking (and will try, it's easy enough to restore the settings to local working condition...done it many times...hihi) that setting up the RR and WNCE to have fixed IP addresses (which also, btw, don't conflict with my local NAT'd LAN addressing scheme) and allocating the WNCE to a fixed IP segment in my 4G hotspot might work.

Other question, which would make it easier to deal with, since the 4G hotspot allows it, would be is there anyway to define the specific ports that the radio RR would communicate SIP back on?  This way, I could use the port forwarding capabilities in my hotspot to specifically route SIP and the control signals to the WNCE that the control unit is attached to, since the only other use for my hotspot is for my MacBook to get to the network. 

Thanks for bearing with me as I work this out.

73 Bryan WB0YLE

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