Use MikroTik RouterOS as a Dialup Client PPPoE

MikroTik has the capability of dialing to the internet via a PPPoE connection which is commonly used for ADSL and wireless internet dialups.  Simply set your ADSL modem into ‘bridge’ mode which allows other devices such as MikroTik routers to do the dialup.

>>In your MikroTik router, click on the Interfaces >>button and add a new PPPoE client.
Once the new PPPoE Client interface window appears, simply choose the Ethernet port of your MikroTik router that will be connecting to your ADSL modem in this example it will be ether3.

Once you have chosen your ADSL interface, proceed to the “Dial Out” tab and specify your PPPoE (ADSL) username and password and be sure to tick the option “Use Peer DNS” which will allow the MikroTik to make use of your service providers DNS server to resolve DNS queries.

Source : http://netwanlan.com