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Article View: comp.protocols.ppp
Article #169

PPP between sunos 4.1 and mach 386

#169
From: Allen Gambert
Date: Fri, 25 Sep 1992 13:45
33 lines
1649 bytes
I compiled and ran ppp on both my sun IPC and my mach 386, theres only one
problem.  Connecting two 386's together or two suns together works fine.
Its when
connecting a sun to a 386 that gives me a problem.  It seems that the
problem has
to do with the little/big endian issue.  When I turn on debugging I
notice that 
both machines return the ip address in reversed order, that is, my 386
prints 
the address as follows: 234f0105:234f0106 and the sun prints the address
as follows: 06014f23:05014f23.  

I have three questions:

 1) Has anyone succussfully gotten ppp to work between two architectures
that use     little/big endian format, and if so what is the trick?

 2) Where should I start looking in order to isolate the problem?

 3) Where in the code to I need to worry about byte swapping?


I am using the version of ppp for my sun that was done by Brad Clements;
the version that uses the streams based device driver.  My 386 is using
the same code except the device driver is if_ppp.c instead of ppp_if.c
and ppp_async.c.

Any help in solving this matter will be greatly appreciated.

Thanks,

Allen
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Message-ID: <1992Sep25.134529.14725@ariel.ec.usf.edu>
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Path: arc1-ca.pugleaf.net!sparky!uunet!pmafire!news.dell.com!swrinde!cs.utexas.edu!sun-barr!ames!tulane!uflorida!usf.edu!screamer!gambert
From: gambert@screamer.csee.usf.edu (Allen Gambert)
Newsgroups: comp.protocols.ppp
Subject: PPP between sunos 4.1 and mach 386
Message-ID: <1992Sep25.134529.14725@ariel.ec.usf.edu>
Date: 25 Sep 92 13:45:29 GMT
Sender: news@ariel.ec.usf.edu (News Admin)
Reply-To: gambert@screamer.csee.usf.edu (Allen Gambert)
Organization: University of South Florida at Tampa
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