[CLUG] pppd/wvdial weirdness

[peter]

In preparation for a possible connection to broadband
I shut down the server, opened the lid, added a second 
ethernet card and rebooted.

No problem, card was recognised, redhat-config-network
let me create eth1, and all looked ready.

But now my pppd dialup is broken. Up to now I've had a
perfectly working pppd call utvip which dials out, makes
the connection, and sets the default route, and it all
worked.

Now I got some weird message in /var/log/messages that the 
tty was not a console (pppd is normally called from a CGI
script so that anyone on the local net can bring up the connection
via a web interface). Sure enough, if I type pppd call utvip
in a real terminal, wvdial tries to send its ATZ and stuff to
the terminal I typed the pppd command in! I actually get an ATZ
appearing on the screen. wvdial.conf is correct, identifying
/dev/modem, and that is correctly symlinked to /dev/ttyS0. 

If I run wvdial utvip from the terminal manually it dials
and connects fine (which is how I'm sending this). 

So WTF should it suddenly decide to pretend the console is a
modem when it's triggered from the pppd command?

I took out the ethernet card in case there was an IRQ conflict
but that doesn't change anything. 

Anyone got any suggestions?

///Peter