Through the LEAF Package configuration menu choose pppoe. The following menu will appear:

                        pppoe configuration files

        1) DSL pppd options
        2) pap secret

  q) quit
  ----------------------------------------------------------------------------
        Selection:

Entry 1) allows you to adjust the parameter of your ppp connection through the /etc/ppp/peers/dsl-provider file. The most important argument is the user parameter which defines your login name.

Replace the field following the user statement in the /etc/ppp/peers/dsl-provider [ "login@isp.com" ] by the login name provided by your ISP.

# Configuration file for PPP, using PPP over Ethernet
# to connect to a DSL provider.
#
plugin /usr/lib/pppd/pppoe.so

# MUST CHANGE: Uncomment the following line, replacing the user@provider.net
# by the DSL user name given to your by your DSL provider.
# (There should be a matching entry in /etc/ppp/pap-secrets with the password.)
user "eric12345@foobar.com"

(...)

Entry 2) allows you to edit the /etc/ppp/pap-secrets. Enter in this file the login and password provided by your ISP. Your login name must EXACTLY match the one given in the previous /etc/ppp/peers/dsl-provider file. If you have special characters in secret or username, you should put them in quotes

# This is a pap-secrets file
#
#papname * papsecret
"eric12345@foobar.com" * "secretfoo"

Backup both pppoe and ppp packages.