According to Rens Troost:
>
>
>I need to run two different PPP connections from a 1.0 box, any
>attempt to run pppd after the first connection is up results in:
>
>	ioctl(TIOCSETD): Device not configured
>
>It seems not to matter whether I start up tty00 or tty01 first. Has
>anybody seen this?
>

Sounds like you did not configure enough PPP devices into your kernel.
What is the number on your "options PPP" line in your kernel config?
Bet it's 1 - try making it > 1

-- 
Brett Lymn, Computer Systems Administrator, AWA Defence Industries
===============================================================================
"It's fifteen hundred miles to Ankh-Morpork" he said.  "We've got
three hundred and sixty three elephants, fifty carts of forage, the
monsoon's about to break and we're wearing ... we're wearing ... sort
of things, like glass, only dark... dark glass things on our eyes..."
        - Terry Pratchett "Moving Pictures".