How can I drop "Source Quench, Redirect, Time stamp and Time stamp reply" ICMP packets

From: Santa (santa19992000_at_yahoo.com)
Date: 10/24/04 

Date: 24 Oct 2004 10:13:30 -0700

I need to drop "Source quench, Redirect, Timestamp and
Timestamp reply" packets. Do I have to add a separate rule to
iptables?. Or by default if I didn't add any rule, will it drop
automatically.

Thanks in advance.

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