How i can block different port’s (for example - http) ?
/ip firewall filter add chain=forward protocol=tcp dst-port=80 action=drop
Reading the manual won’t hurt, either.
http://www.mikrotik.com/docs/ros/2.9/
Eugene
from this page:
http://www.mikrotik.com/docs/ros/2.9/ip/filter
… you could learn this command:
/ip firewall filter add chain=forward dst-port=80 protocol=tcp action=drop
MT double posting
Perhaps they were testing the parallel processing for the new dual-cpu support in 3.x? 
If yes, MikroTik will have to rework the synchronisation part of that 
Best regards,
Christian Meis
double posting is an exeption , ignoring is the standard .
answering forum posts is not our responsibility. this is a user forum. you can email support if you need answer from mikrotik