This module helps to match SCTP packets based on the following criteria

Destination Port: --dest-port 
Source Port:      --source-port 
Chunk Types:      --chunk-types (all|any|only) <chunk types:flags>
		  The flag letter in upper case indicates that the flag is to match if set,
		  in the lower case indicates to match if unset.

iptables -A INPUT -p sctp --dest-port 80 -j DROP
iptables -A INPUT -p sctp --chunk-types any DATA,INIT -j DROP
iptables -A INPUT -p sctp --chunk-types any DATA:Be -j ACCEPT

