[newbie] help with kppp

[Xecut1on]

i need some help and theres 2 ways i could do this.

1. i had to change /dev/modem to /dev/modem2 how can i make kppp use modem2 instead of modem?

2. how do i change /dev/modem2 back to /dev/modem?
an answer to either of these would be very helpful
thanks