Hello for all Mikrotik People there..!
So anyone know what is the benefit of this use ip firewall feature here…?
Bridge setting
what is the consequence if enable it and if I disable it…?
anyone know..?
It forces any bridged traffic to also pass through IP firewall chains https://help.mikrotik.com/docs/display/ROS/Packet+Flow+in+RouterOS#PacketFlowinRouterOS-BridgeForward, this is only required if you wish to apply firewall rules, where bridge ACLs are insufficient (e.g. as they are stateless), or queues to this traffic.
It reduces performance as there is more processing involved, and can have unintended consequences if the traffic accidentally matches rules due to poorly specified matching. Also note it only apples when the bridged traffic is not hardware offloaded as this never reaches the software bridge https://help.mikrotik.com/docs/display/ROS/Packet+Flow+in+RouterOS#PacketFlowinRouterOS-FlowofHardwareOffloadedPacket.