iptables rule to block ping to internet

UNIX for Advanced & Expert Users
1

I want to block ping on a linuxbox to any other address where it would go to the default gateway.

vmdebianamd64:/etc/tcng# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
198.9.200.0     *               255.255.255.0   U     0      0        0 eth0
default         198.9.200.249   0.0.0.0         UG    0      0        0 eth0

i used

iptables -A OUTPUT -d 198.9.200.249 -j DROP

no i can't ping to 198.9.200.249 but i can still ping to -www.yahoo.com which is not on my network?
why and what solution

2

Try this:

iptables -A OUTPUT -p icmp -o eth0 -j DROP