Linux-Hams archive - June 1998: Re: TCP/IP and ax25 digipeater : how ?

Re: TCP/IP and ax25 digipeater : how ?

Julian Munoz Dominguez (csep@rommon.fi)
Mon, 01 Jun 1998 14:25:15 +0000


Alexandre Fornieles wrote:

> All the ax25 works well to me but now i would like to know how to make the
> tcp/ip packets sent to my kiss interface beeing digipeated by the outgoing
> port of the Flexnet node that is on the other side of the kiss wire link
> (on another computer).
>
> This is easy to achieve in plain ax25 but while testing the tcp/ip stuff i
> can see my <UI> tcp/ip packets sent on the kiss interface adressed to
> 'QST' but i don't know how to make these packets beeing sent to
> xxx via F1CAY
> (F1CAY beeing the call of the outgoing ax25 port to reach my tranceiver)

I think it is not so easy, because QST means "The broadcast link/network
layer address", and I don't know if that can be changed so easily, not
only changing the ax25 routes (??). I suppose that your partners also
should use the digipeater to reach you, but the problem is there is only
one broadcast address, their software can't decide if they must use QST
for one station, and QST via F1CAY for the other.

I suppose that changing the qst should be implemented for each type of
system you use, ROSE, FLEXNET, NETROM. The problem is if there is no way
to broadcast information in these systems.

Well, I suppose you don't want something so complicated, you only want
to use the digipeater. The only solution I have found is to create ARP
table by hand, you and your partners (to reach you), and so you will not
"QST" through the digipeater.

Julian
-.-