hi, i attempted to start pppd this afternoon and got the same error over
and over again, even after restarting:

Apr  4 23:01:30 friction pppd[96]: pppd 2.3.0 started by root, uid 0
Apr  4 23:02:00 friction pppd[96]: Connect: ppp0 <--> /dev/tty00
Apr  4 23:02:03 friction pppd[96]: Serial line is looped back
Apr  4 23:02:03 friction pppd[96]: Connection terminated.

what is this error, and how do i fix it?
thanks a lot :)
  - a