[Simh] MicroVAX 3900 networking problem on Mac OS X

[Vorländer, Martin]

Mark,

thanks for the quick reaction and the workaround. Indeed everything works correctly by defining the XQ type as DELQA-T.
Don't ask me where the DELQA setting comes from, though - I think I've had it forever in the setup.

Best regards,

Martin

Martin Vorländer

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-----Ursprüngliche Nachricht-----
Von: Mark Pizzolato - Info Comm [mailto:Mark at infocomm.com] 
Gesendet: Freitag, 2. Januar 2015 15:28
An: Mark Pizzolato - Info Comm; Vorländer, Martin; 'simh at trailing-edge.com'
Betreff: RE: MicroVAX 3900 networking problem on Mac OS X

On Friday, January 02, 2015 at 6:19 AM, Mark Pizzolato wrote:
> On Friday, January 02, 2015 at 2:04 AM, Martin  Vorl�nder wrote:
> > I'm in the process of updating my SIMH installation (on Mac OS X.9.5 and
> > X.10.1), and have run into troubles with the microvax3900 networking.
> >
> > I'm using a git clone of the simh/simh repository:
> > [...]
> > My network setup looks like
> >
> >   ; (outside world)
> >   SET XQ ENABLED
> >   SET XQ MAC=08-00-2B-AA-BB-CC
> >   SET XQ TYPE=DELQA
> >   ATTACH XQ0 en0
> >   ;
> >   ; (host connection)
> >   ! /sbin/kextload -v /Library/Extensions/tap.kext
> >   SET XQB ENABLE
> >   SET XQB MAC=08-00-2B-AA-BB-CE
> >   SET XQB TYPE=DELQA
> >   ATTACH XQB0 tap:tap0
> >   ! /sbin/ifconfig tap0 192.168.11.100 netmask 255.255.255.0 up
> > [...]
> > I'm at a loss how to proceed. Anyone got some hints where to look?
> 
> I setup the same way and indeed see similar results with no traffic flowing.
> I'll get to the detail behind this within a few days.

Well, after just a few minutes I think I may have a temporary workaround.  Just DON'T do a "SET XQ TYPE=DELQA" and "SET XQB TYPE=DELQA".  The default device is the DELQA-T and this seems to work.  I must have broken the vanilla DELQA simulation somewhere along the way.  As I said, I'll look into this in the next few days.

- Mark