[HamWAN PSDR] 44.x.x.x HamWAN network at Paine

Sun Apr 27 03:36:42 PDT 2014

Take a look at the CPIN network, in PA, it is fantastic.

http://www.remoteamateur.com/  (Lower down the page!)

Also the *Cambria Radio Club* has done fantastic work with Mesh.
*
* Keith KB3TCB

On 4/27/2014 12:26 AM, Dean Gibson AE7Q wrote:
> I have an idea to provide additional radio network connectivity to the 
> Snohomish County DEM at Paine on 23cm, that would require one or two 
> fixed 44.x.x.x IP addresses at the DEM, and one at my house (separate 
> from my MikroTik radio), that would be accessible via the present 
> 44.24.240.x connection to Paine (and perhaps any other 44.24.240.0/20 
> address).  Both involve the use of two (or more) Icom ID-1 radios in 
> D-Star DD mode.
>
> Background:  An Icom ID-1 in DD mode acts just like a piece of 
> Ethernet cable (except that it is half-duplex and limited to a raw 
> 128Kbps speed).  No IP address is (or can be) assigned to the device. 
> Any Ethernet packet reaching the ID-1's Ethernet port (whatever the 
> content) is simply encapsulated and transmitted if the radio is in 
> DD-mode.  Similarly, any received data (properly encapsulated by 
> another ID-1) is simply sent out the receiving radio's Ethernet port.  
> The only radio configuration possible is to select a 23cm frequency 
> and set the radio into DD-mode.  Most of these actions can either be 
> done by the radio's control head, or via a USB port "connected" to a 
> Windows PC running Icom's control software for the ID-1.  This prior 
> sentence is important in the following discussion.
>
> As an aside, the transmission of an ID-1 can be addressed to and 
> received by a D-Star DD-mode "repeater" module, routed via the D-Star 
> network over the Internet to another such "repeater" module anywhere 
> in the world, and retransmitted over the air to a receiving ID-1 
> radio.  This mechanism, while perhaps interesting, is not the subject 
> of this eMail.  I only mention it so as to avoid confusion.
>
> In scenario #1 for the ID-1 that already is installed at the Snohomish 
> County DEM:
>
>  1. The Ethernet port of the ID-1 is directly connected to a switch at
>     the DEM that is on the 44.24.240.x network.  In this mode, any
>     packets received over-the-air by the ID-1 are injected into the
>     local 44.24.240.x network, and are routed in exactly the same
>     manner as from any other device hard-wired to the 44.24.240.x
>     network at the DEM.  Further, any Ethernet packets seen by the
>     ID-1 (whether intended for radio transmission or not), would be
>     transmitted by the ID-1.
>  2. Another ID-1, located (say) at my house would be connected to a
>     router, which would act as though it were directly connected to
>     the 44.24.240.x network at the DEM.
>
> I don't view the above scenario as a good idea.  For one thing, the 
> indiscriminate transmissions from the DEM of unrelated 44.x.x.x 
> packets doesn't seem like a good idea.  For another, there is no 
> security.  So, that brings me to scenario #2:
>
>  1. At the Snohomish County DEM, place a router (or bridge) between
>     the ID-1 and the 44.24.240.x network.
>  2. In this scenario, the ID-1 located at my house would also be
>     connected to a router that acts as though it were directly
>     connected to the 44.24.240.x (or any other) network at the DEM.
>
> Now, here is the wrinkle (to both scenarios):  The ID-1 at the DEM is 
> currently in VERY LOW utilization, being (as so far as we know) only 
> able to contact my ID-1 (in either digital  data or voice mode), and 
> the two 23cm D-Star K7LWH repeater modules (one voice, and presumably 
> one data) in Bellevue.  Also, the ID-1 also supports normal FM voice 
> mode, and is easily able to hit with one watt (from both the DEM and 
> my house) the KB7CNN 23cm FM repeater on East Tiger Mountain.  So, it 
> would be nice to use the DEM's ID-1 radio in different modes, as 
> needed, and switch modes or frequencies REMOTELY as desired.  The 
> solution to this the use of a Digi "Anywhere/5" (or "/2") 
> Ethernet-to-USB box (I have several).  With the installation of Digi 
> drivers on any Windows PC, these allow a PC anywhere in the world to 
> connect over the Internet to a Digi box and have access to several 
> remote USB devices (including any connected USB hubs).  In particular, 
> the USB control port of an ID-1.  In fact, this is how I control my 
> ID-1 at home:  this allows me to control the ID-1 from any Windows PC.
>
> Hence the desire for a fixed 44.24.240.x IP address for the Digi box 
> at the DEM, allowing REMOTE control and configuration of the ID-1 when 
> the Internet is not available.  While the Digi box can be connected to 
> any network at the DEM, it seems most productive to connect it to the 
> 44.24.240.x network there, allowing remote configuration and control 
> of the ID-1 in an Internet outage (this can be disabled by unplugging 
> the ID-1's USB port).  Unfortunately, the Digi USB boxes are only 
> usable from Windows systems (Digi's remote SERIAL (RS-232) port boxes 
> are supported not only on Windows from 98 on, but on most variants of 
> Linux ...).
>
> Yes, this provides a much slower connection to the DEM than the 
> MikroTik radios, but doesn't have quite the strict line-of-sight 
> issues that 5cm does, and thus permits some mobile access.
>
> To Scott Hokaker:
>
> I am willing to provide a Digi "Anywhere/5" box on permanent loan (or 
> perhaps donation) to this project.  I also have a couple of 
> consumer-grade routers (Linksys BEFSR41, Netgear WGT624v2) that are 
> similarly available, if they are suitable.
>
> Comments welcome!
>
> -- Dean
>
>
>
> _______________________________________________
> PSDR mailing list
> PSDR at hamwan.org
> http://mail.hamwan.org/mailman/listinfo/psdr_hamwan.org

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.hamwan.net/pipermail/psdr/attachments/20140427/6ce7d979/attachment.html>