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VK2RQ > SYSOP 31.12.12 12:19l 83 Lines 4378 Bytes #999 (0) @ WW
BID : 1712_VK2RQ
Read: GUEST
Subj: Re: Virtual machines & WinFBB continued
Path: IZ3LSV<IK8VKW<F1OYP<VK4TUB<VK2RQ
Sent: 121231/1113Z @:VK2RQ.#SYD.NSW.AUS.OC #:1712 [Sydney] $:1712_VK2RQ
From: VK2RQ@VK2RQ.#SYD.NSW.AUS.OC
To : SYSOP@WW
Hi Tubby,
You are right, I have a fair amount of experience in Unix/Linux systems
and IP networking through my education and professional work, which has
been quite helpful in understanding packet radio. In fact, I have been
playing with Linux long before even Redhat came on the scene.
In terms of linux distributions, I would recommend Ubuntu. Personally I
have been using Debian, which is what Ubuntu is based on, but Ubuntu is
designed to be user friendly, and tends to be more up-to-date than Debian
in terms of software packages. I'm not sure what is the status of the
packet software in Ubuntu, but in Debian it was quite old and I ended up
building most of the packages from source (there is some info about that
on my web page).
If you want to set up some AXUDP forwarding, then I am happy to oblige.
It would probably be better to set up such a tunnel with my netbook,
which runs 24/7, rather than my VMWare machine, which is really only
running when I need it for testing/developing.
I previously wrote a bull talking a bit about AXUDP vs telnet, but
perhaps a more practical demonstration would be helpful. I will email
you details on how to telnet in to my Linux node. This has AXUDP
tunnels with a couple of other systems. If you log in and type "N",
you will see all the other systems that can be reached over those
tunnels, and you can connect to them just the same as if there was an
RF link between my system and theirs. With telnet, you can log into my
BBS and exchange emails, but with AXUDP tunnels, you can connect to
other systems using callsigns and access services like nodes, BBS,
DX Cluster, Chat/Conference servers, etc. in the same way as you would
access them with packet over the air.
I drew up a picture of the configuration on my netbook (it doesn't
include the APRS setup though).
+----------------------+ +----------------------------+
| LINUX | | BPQ32 (running user WINE) |
|----------------------| |----------------------------|
|NETROM VK2RQ-1 | | BPQNODE VK2ACL-1 |
|FBB MAIL VK2RQ-2 | | BPQMAIL VK2ACL-2 |
|NODE VK2RQ-7 | | BPQCHAT VK2ACL-11 |
+-+-------+--------+---+ +----------------------------+
| | | UDP /UDP UDP| UDP|
| | +--+--+10101 /10092 10090| 10094|
| | | ax1 |---- / | |
| | +-----+ \ / | |
| | \ /UDP |UDP |UDP
+-------+ +--------+ \/10093 |10091 |10095
| sm0 | | sm1 | +-------+ +------+ +-----+
|VK2RQ-9| |VK2RQ-10| | ax0 | |bpqvhf| |bpqhf|
+-------+ +--------- |VK2RQ-6| +------+ +-----+
| ^ | ^ +-------+ ^ ^
| | | | | |
| | | +------------rxecho----------------+ |
| | | |
| +------|---------------rxecho----------------------------+
| |
| |
\|/ v \|/ v
| +----------+ | +---------+
+--+7037.17kHz| +--+147575kHz|
+----------+ +---------+
So, ax0 is the main AXUDP device I use to connect to other systems,
or to the Linux Node, FBB BPQ32 programs running under Wine on the
netbook itself.
The soundmodem AX25 devices that connect to the radios are sm0 and sm1,
and I set up two additional linux AX25 devices called bpqhf and bpqvhf,
which communicate with BPQ via AXUDP. The soundmodem AX25 devices are
briges to the bpqhf and bpqvhf AX25 devices via "rxecho", which listens
on each device and when it receives a packet, echos is to the
corresponding AX25 device.
Hope that gives you a better picture what is going on. I'll send you
connection details to my Linux node so you can have a poke around.
73, Matt VK2RQ
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