Need help with wiki for Mesh setup

Good Day,

I have tried to implement a mesh setup as in the wiki http://forum.mikrotik.com/posting.php?mode=post&f=7 but I have not been able to get it working.

I have tried the setup as in wiki on our three mikrotiks.

I get signal from the base station through 2nd mikrotik, but am unable to connect using pppoe server which is setup on base station.

I just want to find out if I need to setup pppoe server on all the units to authenticate with our external radius server?

Thanx