David Guynn wrote:
> 
> Jun 17 16:00:06 netbsd-iicx pppd[1075]: pppd 2.3.1 started by root, uid 0
> Jun 17 16:00:06 netbsd-iicx pppd[1075]: Connect: ppp0 <---> /dev/tty00
> Jun 17 16:00:06 netbsd-iicx pppd[1075]: Warning - secret file
> /etc/ppp/pap-secrets has world and/or group status

Do "chmod go-rwx /etc/ppp/pap-secrets" as root.

> Jun 17 16:00:06 netbsd-iicx pppd[1075]: Serial line is looped back.

I suspect your modem's echoeing back characters.  Check the modem
settings.

> Jun 17 16:00:06 netbsd-iicx pppd[1075]: Connection terminated

Ken