Hi,
I have been using RB951G-2HnD for home use. I have created a bridge and added all the ports from 2 to 5 and WLAN to the bridge. when i connect 2 computer using RB951G-2HnD i can see other computer in network. So my problem is how to add a firewall so that my computer can not see other computers connected to the RB951G-2HnD or other computers can not see my computer. And in such a way that even if they are all in same bridge through Cable or WiFi.

Building network that should not connect members together? Enable firewall on the bridge and add drop rule for packets going from internal range to internal range.

jarda,
please....... can you explain how to do that....... i mean i could not see from where to start.........

Hi, check this:
http://wiki.mikrotik.com/wiki/Manual:In ... e_Firewall

i have created hotspot using my routertboard and users too but i don't want to make one computer to find another computer inside same hotspot which is created using the same routerboard. does any one has any firewall rule to block that.

Why hotspot now? Have you dropped the communication by bridge firewall?

nop don't have any idea from where ko start..........

Ok.
First switch on firewall on bridge:

ros code

/interface bridge settings
set use-ip-firewall=yes

Then add drop rule:

ros code

/interface bridge filter
add action=drop chain=forward dst-address=192.168.1.0/24 mac-protocol=ip src-address=192.168.1.0/24

of course use the addresses that should not communicate with each other..

sorry but it didn't work ...........