[OZAPRS] Ozaprs Digest, Vol 8, Issue 25

Tony Hunt wavetel at bigpond.com
Sat Apr 29 13:35:01 EST 2006


Craig .. I am not sure if your on the Ozaprs mail list or not so I CCd
your
email address into this.. I am not real familiar with AX25 and have been
breaking new ground myself of late getting it going..

First off.. You have a LAN connected?? I think you have by the looks of it
.. Is the Router address 192.168.1.1 ?? This is a common router IP address
along with 192.168.0.1 .. If so you need to find another address for your
AX0 port like maybee 192.168.1.100 .. The address 192.168.1.255 sugests
its
a broadcast..

If your router is setup to do a UpNp advertisment then the AX0 port may be
answering it every time it does a advertisement.. Similarly in the router
you might have RIP setup and thats going to cause some routing info to be
exchanged across the LAN periodically..

Have you got a AX25 Node configured or Netrom as well ?? I will ask
someone
else who knows more about this and post the answer on here..

Tony Hunt VK5AH


> Date: Sat, 29 Apr 2006 11:24:41 +0930 (CST)
> From: "Craig Turner" <craig at craigturner.id.au>
> Subject: [OZAPRS] AX25 under Debian sending non APRS packets
> To: vk3jfk at amsat.org, "VK / ZL APRS Users" <ozaprs at aprs.net.au>
> Message-ID: <1996.203.129.37.15.1146275681.squirrel at 203.129.37.15>
> Content-Type: text/plain;charset=iso-8859-1
>
> Hi,
>
> I'm running the latest version of Debian and using an TNC-X. I have
> configured AX25 in accordance with the AX 25 How To (I think!!) and am
> running xastir.
>
> I want to run APRSD, so that I can have a headless box relaying APRS
data
> within my home network.
>
> At the moment its all working almost perfectly. I can only use the AX0
> interface as root, so at the moment I have to run xastir as root to
access
> the radio port. I am not sure how to resolve this at the moment, it may
be
> because I am starting the ax25 interface from a console script as root.
> Anyway, thats not my main problem...
>
> xastir transmits and recieves fine, but occasionally (appears to be
about
> 10 minute intervals, but not 100% sure) the TNC sends a packet that goes
> for about 20 seconds or so.
>
> I've managed to decode the packets and they are:
>
> VK1HCT-1>QST>UI,?
>   IP: UDP, Source: 192.168.1.1, Dest: 192.168.1.255, Len: 252
> VK1HCT-1>QST>UI,?,CC
>   IP: UDP, Source: 192.168.1.1, Dest: 192.168.1.255, Len: 33
> VK1HCT-1>QST>UI,?,CC
>   IP: UDP, Source: 192.168.1.1, Dest: 192.168.1.255, Len: 235
>
> 192.168.1.1 being the IP number I have assigned to AX0 port. It looks to
> me like some process is either pinging the port or sending a beacon. At
> this point APRSD isn't running.
>
> Any suggestions for where to start looking? I want to be able to leave
the
> station on 24hrs a day, but at the moment I don't want it to congest the
> network with these packets.
>
> Regards
> Craig
> VK1HCT
>
>
> ------------------------------
>
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>
>
> End of Ozaprs Digest, Vol 8, Issue 25
> *************************************
>


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