root@super-server:/# cat /etc/ppp/pap-secrets
#
# /etc/ppp/pap-secrets
#
# This is a pap-secrets file to be used with the AUTO_PPP function of
# mgetty. mgetty-0.99 is preconfigured to startup pppd with the login option
# which will cause pppd to consult /etc/passwd (and /etc/shadow in turn)
# after a user has passed this file. Don't be disturbed therefore by the fact
# that this file defines logins with any password for users. /etc/passwd
# (again, /etc/shadow, too) will catch passwd mismatches.
#
# This file should block ALL users that should not be able to do AUTO_PPP.
# AUTO_PPP bypasses the usual login program so it's necessary to list all
# system userids with regular passwords here.
#
# ATTENTION: The definitions here can allow users to login without a
# password if you don't use the login option of pppd! The mgetty Debian
# package already provides this option; make sure you don't change that.
# INBOUND connections
# Every regular user can use PPP and has to use passwords from /etc/passwd
# hostname "" *
# UserIDs that cannot use PPP at all. Check your /etc/passwd and add any
# other accounts that should not be able to use pppd!
#guest hostname "*" -
#master hostname "*" -
#root hostname "*" -
#support hostname "*" -
#stats hostname "*" -
# OUTBOUND connections
# Here you should add your userid password to connect to your providers via
# PAP. The * means that the password is to be used for ANY host you connect
# to. Thus you do not have to worry about the foreign machine name. Just
# replace password with your password.
# If you have different providers with different passwords then you better
# remove the following line.
Но! Если модем свисток, узыбячий, то его еще нередко надо перевести в режим модема, а для этого нужно еще usb_modeswitch, правило для него и правило для udev.
А после:
pon gsmmodem.config
И радуемся ppp0 соединению. Как то так, если кратенько.