[Xastir] dual port TNC

Curt, WE7U archer at eskimo.com
Tue Jun 16 11:40:00 EDT 2009


On Tue, 16 Jun 2009, Wes Johnston, AI4PX wrote:

> How does xastir deal with a dual port TNC such as the KPC4?  Incoming
> packets are ID'ed by port number (ie 0 or 1).  When they are digipeated are
> they digipeated out on same port they were heard on, or is the port ID
> stripped and port 0 substituted?  Can ports be "bridged"?

The multi-port TNC interface in Xastir was never finished.  The best
you can do is identify which port you wish to use and Xastir then
uses that one port and I believe ignores the others, or it might
transmit out that one port but receive on all.  I can't recall
so would have to look at the code to see how it handles that case.

Investigate whether the AX.25 kernel networking configuration can
handle multi-port TNC's, then for Xastir you'd end up with separate
AX.25 ports for each TNC port.

As far as bridging between them, investigate whether Digi_NED can do
this for AX.25 kernel networking ports.  It might be able to.
There are also aprsr? and aprsd to check out.

-- 
Curt, WE7U.				archer at eskimo dot com
http://www.eskimo.com/~archer
   Lotto:  A tax on people who are bad at math. - unknown
Windows:  Microsoft's tax on computer illiterates. - WE7U.
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