Subj : type 2.2 pkt header
To   : Carlos Navarro
From : Rob Swindell
Date : Fri Apr 14 2023 12:20 pm

  Re: type 2.2 pkt header
  By: Rob Swindell to Carlos Navarro on Fri Apr 14 2023 11:48 am

 >  > My question was about the "defacto standard" that Maurice mentioned. It
 >  > may seem that the most common is FSC-39: hpt, FMail, Squish, Mystic, etc.
 >
 > My recollection was that most packets that I see are in FSC-48 format (i.e.
 > include the auxNet field), but I'll double-check that.

I checked the Squish source code (s_misc.c) and it's definitely writes the FSC-48 auxNet field to packet headers:
  ph->aux_net=us->net;
But curiously, has the src-point indicator magic-net-value hack commented out:
  /*if (us->point)*/          /* Kludge using the pkt.aux_net field     */
  /*  ph->orig_net=-1;*/      /* for compatibility with other<tm> progs */

So Squish appears to generate packets that are not exactly FSC-39 or FSC-48 compliant. This conclusion was made from the source code released on GitHub (https://github.com/sdudley/maximus/blob/master/squish/s_misc.c) so it's always possible that earlier released versions of Squish did something different.
-- 
                                            digital man (rob)

Rush quote #50:
I've always been a big sponge. - Neil Peart
Norco, CA WX: 57.8øF, 64.0% humidity, 3 mph SSE wind, 0.00 inches rain/24hrs

.