🚀 go-pugleaf

The error message about "PPP support not in kernel" is a bit strange. 
All I can think of is that one of your scripts is incorrectly producing
this message as a result of something else not working.

As for SUID scripts no longer available with kernel 2.0, I am using
Slackware '96 (3.1) (which is kernel 2.0), and it allows them.  My one
and only script, called "dial", is suid root and it allows non-root
users to successful establish the PPP connection.  The ls -l of my
script looks like this:

-rws--xr-x   1 root     root          701 Oct 26 15:34 dial

I suggest you make the script that is first called (I think you call it
"annex") SUID root, such that it looks like mine does with ls -l.  The
permissions of any other files and scripts don't then matter (including
/dev/modem).

Speaking of /dev/modem, this is probably a symbolic link to one of
/dev/cua0 or /dev/cua1.  Permissions of symbolic links do not have any
effect - it is the permissions of the file to which the link points that
have effect.

Hopefully I have been of assistance.  If not, but you think I may have
potential, feel free to email me: tom@tyco.net.au