I have got a Mikrotik Router here that shall act as a PPPoE Server an provide Internet for clients.

- ether1 is connected to my dsl router, address on ether1: 192.168.1.2
- I added the gateway 192.168.1.1

- then I created a PPPoE Server, local Address 192.168.1.3, remote Address Pool 192.168.1.100-150
- authentication against a Radiusserver


Clients PCs can connect to the PPPoE Server, receive the adresses but cannot access the internet.


Here are the symptoms that I can see:
- Mikrotik Router can Ping DSL Modem and Internet-IPs (so the gateway settings must be ok)
- from a client PC I can Ping 192.168.1.2 and 192.168.1.3 but not any further.

How can I make Mikrotik forwarding requests from client PCs to my DSL-Router?
(I do not want to use NAT)

(I do not want to use NAT)

Then you can't, unless pppoe is assigning routable public IP for each client.

I have the same problem.
What does it means "unless pppoe is assigning routable public IP for each client"?
Thanks.

192.168.x.x includes ip addresses that are termed private and cannot access the internet (public) except they are natted behind a public ip address.
http://www.wisegeek.com/what-is-the-dif ... resses.htm
You'll have to speak with your provider about getting at least 1 public ip. However, if you don't want to use NAT, like mrz said you'll need a public ip address for each pppoe client.