hello,
ppp term of remote means the box you dial to.
for example :
boxA dial to boxB then in the boxA to dial remote name must specify the username of boxB. and - in the boxB itself must specify its name as boxB.
this way so both the caller and receiver can auth them selves.
boxA:
username boxB password boxB
boxB:
username boxB password boxB
read more about pap/chap auth..
cheers.