1This extension can be used if `\-\-protocol icmp' is specified. It
2provides the following option:
3.TP
4[\fB!\fP] \fB\-\-icmp\-type\fP {\fItype\fP[\fB/\fP\fIcode\fP]|\fItypename\fP}
5This allows specification of the ICMP type, which can be a numeric
6ICMP type, type/code pair, or one of the ICMP type names shown by the command
7.nf
8 iptables \-p icmp \-h
9.fi
10