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1990-09-20
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95 lines
NOS/BPQ Link - NODEDRV.COM
I have now produces a 'Packet Driver' to allow NOS to communicate with
the switch. It uses the KISS mode application interface (See KISSMODE.DOC
for details). One copy of the packet driver is needed for each radio
port to be used by NOS, plus one for the loopback port if you want NOS
to be able to talk to the switch. Experience with the system is rather
limited, but I suggest that if you are using TCP/IP over NETROM that
you use the lookback port, and let the switch handle all the radio links.
Only if you are using IP in datagram or ax.25 virtual circuit mode will
you need to give NOS direct access to the radio ports.
Please note that you need at least version 3.57 of BPQCODE.EXE
The following is an extract from my system. You will need to tailor
it to your own requirements.
NODEDRV must be loaded in the same window as NOS - if you put it
under desqview the system will probably crash. It takes two parameters,
the software interrupt number used by NOS to communicate with it (in
the range 60-7f hex), and the virtual COM port used to talk to the
switch.
STARTNOS.BAT
nodedrv 0x61 10
nodedrv 0x62 11
nodedrv 0x63 12
nos
This is the relevent TNCPORT bit of BPQCFG.TXT. I have two radio ports
(Port 1 on 2m, and port 2 on 70 cms). Port 3 is the loopback port.
TNCPORT
COM=10
TYPE=KISS
KISSMASK=4 ; PORT 3 (100B) - Loopback port
ENDPORT
TNCPORT
COM=11
TYPE=KISS
KISSMASK=2 ; PORT 2 (10B) - 70cms
ENDPORT
TNCPORT
COM=12
TYPE=KISS
KISSMASK=1 ; PORT 1 (1B) - 2m
ENDPORT
This is the 'attach' bit of AUTOEXEC.NET. I can't see where the parameter
following the interface name is used, but the code suggests it is the
maximum length of the transmit queue. The next param is the MTU.
#
attach packet 61 node 5 236
attach packet 62 ax2 5 256
attach packet 63 ax1 5 256
#
# MYCALL doesnt seem to be applied to packet driver interfaces, so
# set up a callsign (or it sends garbage)
#
if node link g8bpq-5
if ax1 link g8bpq-5
if ax2 link g8bpq-5
#
This is a new facility, and there is very little local IP activity for
me to try it with. Any feedback would be most welcome, both on problems
and suggestions on how best to set up the system.
73,
John Wiseman, G8BPQ
76, Haywood Road,
Mapperley,
Nottingham.
NG3 6AE
6th June, 1990