Re: DMRlink - bridging GPS - private data

Peter M0NWI

Cheers Cort, didn't want to bug you on retired stuff, and wondered if anyone else had brute forced their way through it :)

I'm informed that GPS is delivered as a kinda SMS to a router with a link to, I'm connecting to a DMR+ IPSC2 server in the UK, so I'll ask if they can see anything arriving.  Not overly worried if we lose the odd one, its just logging anyway.


Sent from Outlook
From: <> on behalf of Cort N0MJS via Groups.Io <n0mjs@...>
Sent: 20 September 2018 17:35:23
Subject: Re: [DVSwitch] DMRlink - bridging GPS - private data
You could just ask the guy who wrote it… ‘cause you know, he’s on this list too.

I would not trust the data routing routines in They were never completed, and may kinda work, but have some serious gaps. At the time I wrote that, I didn’t know enough about IPSC to make sure I could re-write things properly. I used a very poor approach that, sooner or later, will result in corrupted data in some packets. The question is, now often and how much? I don’t know.

I would recommend not using it.

On Sep 20, 2018, at 11:26 AM, Peter M0NWI <peter-martin@...> wrote:


Before I run off down the rabbit hole, has anyone proven that the bridging of Private_data packets works under DMRlink?

I can see the code is there for the packet type callback in, but not in, so I'm using bridge, and I think I've added the rules using the correct header Private_data, with from and too and I'm getting some stuff in the log, but can't figure if I'm actually routing it or not!  Suppose I'll have to run up TCPDump.


        'PRIVATE_DATA': [
            {'NAME': 'GROUPNAME', 'ACTIVE': True, 'TO_TYPE': 'NONE', 'TIMEOUT': 2, 'ON': [], 'OFF': [], 'SRC_TS': 1, 'SRC_GROUP': 5050, 'DST_NET': 'IPSC-GB7EL', 'DST_TS': 1, 'DST_GROUP': 5050 },
            {'NAME': 'GROUPNAME', 'ACTIVE': True, 'TO_TYPE': 'NONE', 'TIMEOUT': 2, 'ON': [], 'OFF': [], 'SRC_TS': 1, 'SRC_GROUP': 5055, 'DST_NET': 'IPSC-GB7EL', 'DST_TS': 1, 'DST_GROUP': 5055 },
            {'NAME': 'GROUPNAME', 'ACTIVE': True, 'TO_TYPE': 'NONE', 'TIMEOUT': 2, 'ON': [], 'OFF': [], 'SRC_TS': 1, 'SRC_GROUP': 5056, 'DST_NET': 'IPSC-GB7EL', 'DST_TS': 1, 'DST_GROUP': 5056 },
            {'NAME': 'GROUPNAME', 'ACTIVE': True, 'TO_TYPE': 'NONE', 'TIMEOUT': 2, 'ON': [], 'OFF': [], 'SRC_TS': 1, 'SRC_GROUP': 5057, 'DST_NET': 'IPSC-GB7EL', 'DST_TS': 1, 'DST_GROUP': 5057 },

log output;

DEBUG 2018-09-20 16:18:57,717 (IPSC-GB7EL) Private Data Packet Received From: 2351266, IPSC Peer 235125, Destination 5057
DEBUG 2018-09-20 16:18:57,776 (IPSC-GB7EL) Private Data Packet Received From: 2351266, IPSC Peer 235125, Destination 5057


Cort Buffington

Join to automatically receive all group messages.