pppoe connection with ISP from within NAT-ed LAN

RouterOS General
1

Hello good people!
I have some troubles with configuring my MK router-firewall.
This is my configuration:

|—NAT—| |--------------------MK----------------------------|
LAN host(s)–>LAN interface–>Public interface(with no IP addr.)–>other ethernet–>ISP

In order to connect to my ISP I need to pass an network at which my Public interface has no IP
address because I don’t want my router to be seen on it.
How can hosts from natted LAN establish pppoe connection with ISP?
I tried to make a bridge but I ended up with IP conflicts.
This is my first time with Mikrotik and I would be very gratefull if someone could help me with this.

2

Will anyone help me please? I’m just a newbie with all this stuff.
A hint or a suggestion, is this configuration possible anyway?

3

http://forum.mikrotik.com/t/pppoe-relay/5036/1

Your best chance is disable nat, enable bridging.

Or else put another pppoe-server on mt.

Or else don’t use pppoe, use vpn or other tunnelling protocol if you want.