I'm trying to get two ppp connections running simultaneously.. one
on my printer port to the Mac Machine next to me, and one through
my modem port to an ISP.  I'm doing this so I can get machines on
my internal network internet access.  Problem is, it seems like
once I get one pppd connection going on one of the ports, I can
never get another.  If I ppp-up and the modem connects, and then
I try:
pppd /dev/tty01 28800 passive x.x.x.x:x.x.x.x ..etc ..etc

It just hangs after the command.

Same is true if I establish the printer port connection first,
then try the ppp-up.

How do I get two pppd processes to occur simultaneously?

Thanks,
Mark