In order to have a modem dialup connection working, you need to have ppp support enabled through the appropriate kernel modules.

To configure your modules, go to the LEAF Packages configuration menu and choose modules. Enter 1) to edit the /etc/modules file and enter the following information:

# Modules needed for PPP connection
slhc
ppp_generic
ppp_async
ppp_deflate

# Masquerading 'helper' modules
ip_conntrack_ftp
ip_conntrack_irc
ip_nat_ftp
ip_nat_irc

Backup the modules.lrp package.