Bridge security

Helo, if i follow guide “How to Transparently Bridge two Networks?” from http://www.mikrotik.com/testdocs/ros/2.8/howto/howto.php is it enough safe? I’m afraid that any other client will be possible to connect to my bridge. Where to search for information how to secure such bridge? Please help.

Bridges by themselves don’t have security features. How to secure a bridge is heavily dependent on what you are bridging, and how you are bridging.

Without further detail I guess some general advice is to turn on the IP firewall on the bridge, and to use firewall filter rules to filter traffic crossing the bridge.

Thanks for reply. I have two RB411/Mikrotik 4.5 Level 3 (BR-1 and BR-2), and I want to bridge 2 networks with them. I’m most afraid, that if I configure bridge as described in FAQ - “Transparent Bridge, using WDS”, any rogue client will be able to establish a bridge with BR-1. FAQ does not mention anything about mutual authentication between BR-1 and BR-2. Of course, both side of LAN is properly secured (802.1X, radius, active directory, etc)', I’m just scared of spoofing BR-1 or BR-2.