How to drop some attacks ?

RouterOS Beginner Basics
1

Hi guys!

Can you tell me how to block smurf & fraggle attacks on MT ?

2

Smurf attack:
block ICMP echo (ping) traffic at IP broadcast addresses in ip firewall

Fraggle attack:
similar as Smurf except that you block UDP echo replies.
Fraggle uses User Datagram Protocol (UDP) echo packets directed at the Unix UDP services echo (port 7), chargen (port 19), daytime (port13) and qotd (port 17). Block them in firewall.