There's a very good write up on how to configure PPPoE on OpenBSD. If you are setting up a gateway used by other computers make sure you fix MTU of the packets by adding the following statement to pf.conf.
scrub out on $ext_if max-mss 1440The issue manifests itself in inability to access certain websites (e.g. me.com, itunes store, etc.)1)
For more information on this issue see man pppoe(4) man page
« start