How to Transparently Bridge two Networks?

Description

Remote networks can be easily bridged using Ethernet over IP (EoIP) or WDS feature of MikroTik RouterOS?. We will show it for the case when the networks are connected through Atheros wireless interface. Using EoIP, the can be extended to any other type of interfaces, like PPTP, CISCO/Aironet, Prism. WDS works only on Prism and Atheros based cards.

Let us assume the following network setup: