On Sun, 7 Nov 1999, Cathryn Mataga wrote:
> >> Yeah, I wonder if it would work just sending raw TCP/IP without any ax25 headers
> >> at all. Aren't the crc's and packet lengths and all that stuff just transmitted
>twice?
> >
> >I'm not sure. Need to include amateur callsigns in there somewhere, though,
> >since IP addresses aren't official identification.
>
> Or do we need the callsigns in every single packet? US-wise, I thought we only
> needed to ID every 10 minuts.
I guess we still need some sort of MAC level addresses anyway. Ethernet
has them too. IP over AX.25 in datagram mode actually isn't much more than
AX.25 addresses in front of an IP frame.
> >Is Van Jacobsen compression used? I haven't used TCP/IP over AX.25 yet,
> >still waiting on an IP allocation. VJ header compression is routinely
> >used on dialup PPP links, and if a link that fast (comparatively) can
> >benefit from it, I suspect our links could too.
>
> My understanding is that tcp/ip headers are not compressed. I believe every packet
> goes out with an ax25 header and a TCP/ip header. Isn't
> some kind of header compression going to be part of the 2.3/2.4 kernels? Does
> *NOS understand any kind of header compression?
Matthias' new AX.25 stuff supports VJ compression over connected mode
AX.25. VJ won't work with datagram mode as it depends on the incoming
frames being ordered.
--
Tomi Manninen Internet: [EMAIL PROTECTED]
OH2BNS AX.25: [EMAIL PROTECTED]
KP20ME04 Amprnet: [EMAIL PROTECTED]
