How to set OS MT2.9.6 to Block Ping or tracert

How Mikrotik MT2.9.6 to Block Ping like this :
ping http://www.yahoo.com

pinging http://www.yahoo.akadns.net [66.94.230.34] with bytes of data :
Request Time Out

I would like to setup to all website from my clients computer will be like that sample.

my friend told me, i have to put ip firewall>filter
add chain=forward dst-address=0.0.0.0/0 action=drop
but it’s not fuctions until now…please give solution…

just drop all the ICMP

 ip firewall>filter add chain=forward  protocol=icmp action=drop

you may allow icmp packets for some hosts (e.g. to ping some important nodes), and than drop any other icmp traffic with provided rule.

Why do you need to block this kind of ICMP at all? Ping and traceroute are invaluable troubleshooting tools and shouldn’t be blocked.