MFJ 1270B(TNC-2) And Linux 2.4.18 kiss

MFJ 1270B(TNC-2) And Linux 2.4.18 kiss

[Jeremiah KD7DMP]

Hello all,

I have a little prob, I have been try to get my MFJ TNC-2 to talk to my
Slackware(2.4.18 kernel) box in kiss mode for a while. The prob is that I
can not getting it to transmit, After doing kissattach I can recive
traffic by using listen, but when I go to transmit using call I get
nothing. I know that TNC works becuase i had it all working and humming a
long before, but I don't rember How I got it to work.

Any ideas..?

thanks and 73
de
Jeremiah
KD7DMP

Re: MFJ 1270B(TNC-2) And Linux 2.4.18 kiss

[Bernard Pidoux F6BVP]

Jeremiah KD7DMP wrote:

> Hello all,
> 
> I have a little prob, I have been try to get my MFJ TNC-2 to talk to my
> Slackware(2.4.18 kernel) box in kiss mode for a while. The prob is that I
> can not getting it to transmit, After doing kissattach I can recive
> traffic by using listen, but when I go to transmit using call I get
> nothing. I know that TNC works becuase i had it all working and humming a
> long before, but I don't rember How I got it to work.
> 
> Any ideas..?
> 
> thanks and 73
> de
> Jeremiah
> KD7DMP

It could be a problem of ax port.
Be sure to call via axport name defined into axports file first parameter.

However, for your information, on two PC of different generation boards 
(Pentium II CPUs) I have been using successfully for years two 2 ports 
KPC9612 in kiss mode with kernel 2.2. But I have never been able to run 
AX25 correctly with any 2.4 kernels. I always experienced interrupts 
problems and kernel oops and finally Linux halted. And one of the 
symptoms was that Call did not work !

The good news is that I recently tried kernel 2.6.0 and that AX25 is 
working back again for me (listen and call working fine).
I used Mandrake Linux 10.0 RC1 Cooker distro for this purpose.
Of course I had to adjust some kiss parameters as serial devices have 
been renamed (i.e. ttyS1 ---> tts/1).

For example :

/usr/local/sbin/mkiss /dev/tts/1 /dev/pty/m3 /dev/pty/m4
/usr/local/sbin/kissattach -i 44.151.75.15 -m 256 /dev/pty/s3 0
/usr/local/sbin/kissattach -i 44.151.75.15 -m 256 /dev/pty/s4 1

with 0 and 1 bounding ax0 and ax1 respectively as defined in axports.

I am now seriously thinking of upgrading my AX25 station with this new 
kernel which works faster (with more functionnalities than 2.2).


73 de Bernard, F6BVP

Re: MFJ 1270B(TNC-2) And Linux 2.4.18 kiss

[Gérard Parat / F6FGZ]

Bernard Pidoux F6BVP a écrit :

> Jeremiah KD7DMP wrote:
>
> > Hello all,
> >
> > I have a little prob, I have been try to get my MFJ TNC-2 to talk to my
> > Slackware(2.4.18 kernel) box in kiss mode for a while. The prob is that I
> > can not getting it to transmit, After doing kissattach I can recive
> > traffic by using listen, but when I go to transmit using call I get
> > nothing. I know that TNC works becuase i had it all working and humming a
> > long before, but I don't rember How I got it to work.
> >
> > Any ideas..?
> >
> > thanks and 73
> > de
> > Jeremiah
> > KD7DMP
>
> It could be a problem of ax port.
> Be sure to call via axport name defined into axports file first parameter.
>
> However, for your information, on two PC of different generation boards
> (Pentium II CPUs) I have been using successfully for years two 2 ports
> KPC9612 in kiss mode with kernel 2.2. But I have never been able to run
> AX25 correctly with any 2.4 kernels. I always experienced interrupts
> problems and kernel oops and finally Linux halted. And one of the
> symptoms was that Call did not work !

Hello,

Successfully using KPC9612 and kernel 2.4.18 but *WITHOUT* fpac which hanged
the system. Otherwise, 2.4.18 runs well with lot of annoying messages into
syslog and message of that kind:
Dec 21 17:12:45 f6fgz kernel: NET: 5 messages suppressed
The cause is due to listen. Don't use it and you will be happy.
My config:
CONFIG_HAMRADIO=y
CONFIG_AX25=m
CONFIG_NETROM=m
CONFIG_ROSE=m (not used)
CONFIG_MKISS=m

My script:
/usr/sbin/mkiss -s 19200 -l /dev/ttyS1 /dev/ptyp1 /dev/ptyp2
/usr/sbin/mkiss -s 19200 -l /dev/ttyS0 /dev/ptyp3 /dev/ptyp4
/usr/sbin/kissattach -m 256 /dev/ttyp1 vhf  f6fgz
/usr/sbin/kissattach -m 256 /dev/ttyp2 uhf1 f6fgz
/usr/sbin/kissattach -m 256 /dev/ttyp3 uhf2 f6fgz
/usr/sbin/kissattach -m 256 /dev/ttyp4 uhf3 f6fgz

/etc/ax25/axports:
vhf F6FGZ-4 19200 255 2
uhf1 F6FGZ-3 19200 255 7
uhf2 F6FGZ-5 19200 255 4
uhf3 F6FGZ-6 19200 255 7

And I use Xnet v1.36 along with a local WLAN.

--
73 Gérard F6FGZ



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