-.\" $OpenBSD: ip6.4,v 1.38 2016/06/27 16:33:48 jca Exp $
+.\" $OpenBSD: ip6.4,v 1.39 2016/06/28 11:23:57 jca Exp $
.\"
.\" Copyright (c) 1983, 1991, 1993
.\" The Regents of the University of California. All rights reserved.
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
-.Dd $Mdocdate: June 27 2016 $
+.Dd $Mdocdate: June 28 2016 $
.Dt IP6 4
.Os
.Sh NAME
datagrams sent on this socket.
A value of \-1 resets to the default value.
.It Dv IPV6_MINHOPCOUNT Fa "int *"
-Get or set the minimum hop limit header field for incoming unicast
-datagrams received on this
-.Dv SOCK_STREAM
-socket.
+Get or set the minimum hop limit header field for incoming
+packets received on this socket.
This can be used to implement the
.Em Generalized TTL Security Mechanism (GTSM)
according to RFC 5082.