2 \fB--source-port\fR,\fB--sport \fR[\fB!\fR] \fIport\fR[\fB:\fIport\fR]
4 \fB--destination-port\fR,\fB--dport \fR[\fB!\fR] \fIport\fR[\fB:\fIport\fR]
6 \fB--chunk-types\fR [\fB!\fR] \fBall\fR|\fBany\fR|\fBonly \fIchunktype\fR[\fB:\fIflags\fR] [...]
7 The flag letter in upper case indicates that the flag is to match if set,
8 in the lower case indicates to match if unset.
10 Chunk types: DATA INIT INIT_ACK SACK HEARTBEAT HEARTBEAT_ACK ABORT SHUTDOWN SHUTDOWN_ACK ERROR COOKIE_ECHO COOKIE_ACK ECN_ECNE ECN_CWR SHUTDOWN_COMPLETE ASCONF ASCONF_ACK
12 chunk type available flags
20 (lowercase means flag should be "off", uppercase means "on")
24 iptables -A INPUT -p sctp --dport 80 -j DROP
26 iptables -A INPUT -p sctp --chunk-types any DATA,INIT -j DROP
28 iptables -A INPUT -p sctp --chunk-types any DATA:Be -j ACCEPT