1This module matches IPv6 extension headers and/or upper layer header.
2.TP
3\fB\-\-soft\fP
4Matches if the packet includes \fBany\fP of the headers specified with
5\fB\-\-header\fP.
6.TP
7[\fB!\fP] \fB\-\-header\fP \fIheader\fP[\fB,\fP\fIheader\fP...]
8Matches the packet which EXACTLY includes all specified headers. The headers
9encapsulated with ESP header are out of scope.
10Possible \fIheader\fP types can be:
11.TP
12\fBhop\fP|\fBhop\-by\-hop\fP
13Hop-by-Hop Options header
14.TP
15\fBdst\fP
16Destination Options header
17.TP
18\fBroute\fP
19Routing header
20.TP
21\fBfrag\fP
22Fragment header
23.TP
24\fBauth\fP
25Authentication header
26.TP
27\fBesp\fP
28Encapsulating Security Payload header
29.TP
30\fBnone\fP
31No Next header which matches 59 in the 'Next Header field' of IPv6 header or
32any IPv6 extension headers
33.TP
34\fBproto\fP
35which matches any upper layer protocol header. A protocol name from
36/etc/protocols and numeric value also allowed. The number 255 is equivalent to
37\fBproto\fP.
38