In chapter 6 user is advised to install rp-pppoe if he has a PPPoE connection. That is obsolete. The documentation should advertise the PPP baselayout net module, capable of handling any kind of point-to-point links. The only package that a user must have in order to use baselayout PPP module for a PPPoE connection is net-dialup/ppp and of course the appropriate kernel support. Unfortunately, the whole documentation on the matter is represented by net.example file and the pppd manual page. :( Also, in chapter 3 user is instructed to install rp-pppoe. I don't know if on a current livecd you could setup a PPPoE connection using the baselayout support, but if you can, this chapter should be updated.
*** This bug has been marked as a duplicate of bug 171584 ***