So after reading chapter 11 of the NetBSD guide on networking I have to say
I'm confused alittle bit.  My goal is to have a SparcStation5 running NetBSD
1.6 with the generic kernal with an external modem (call this system
'server').  The modem on server upon incoming calls on the line will respond
and establish a PPP connection with a client machine (call this system
'client').  Now here's the kicker, client will be running Windows as its OS,
and so will be using Windows Dial-Up Networking as its method of connecting.
So this means too that server will need to be configured to check the
username and password provided by client (sort of setting up a Mini-ISP
basically).  Server will need to pass tcp/ip settings to client, basically
saying that server will be its default gateway.  Either server will be the
DHCP server on the network or another NetBSD box will be the DHCP server,
but from my understand server will need to have a DHCP server running.
Chapter 11 of the guide provided lots of info for dialing out to an ISP but
did not provide any info on configuring for incoming calls.  Now my
questions about this whole thing...
1.  Is this whole idea even possible? (no point in going any further if it
wasn't)
2.  What would be a good choice for the external modem as this piece of
hardware has yet to be acquired?  Basically, any one that is supported and
easily configurable.
3.  What will be the maximum speed between the two modems? Would it be 56k
or less (from what I've seen I have a feeling it will be much less)?
(question aimed at people with a good amount of knowledge dealing with how
dialup modems work)
4.  The speed between the two modems will be effected by the speed of the
serial connection with the modem, correct? (quested aimed at people with a
good amount of knowledge on the hardware in a SparcStation5)
5.  And finally if this whole basic hardware setup is possible, what needs
to be configured on server and could examples be provided?

I've submitted this email to both the sparc mailling list and help mailing
list since I believe this topic covers both topics of these mailing lists.
Private replys are welcomed or just to the mailing lists, either or.  Links
to some useful and informative sites would be welcomed too.  Thanks all.

-Jesse