@@ -1,4 +1,4 @@
-.\" $NetBSD: ip.4,v 1.29 2009/07/19 23:17:33 minskim Exp $
+.\" $NetBSD: ip.4,v 1.30 2009/07/20 07:58:54 wiz Exp $
.\"
.\" Copyright (c) 1983, 1991, 1993
.\" The Regents of the University of California. All rights reserved.
@@ -190,7 +190,9 @@
The
.Dv IP_MINTTL
option may be used on
-.Dv SOCK_DGRAM or SOCK_STREAM
+.Dv SOCK_DGRAM
+or
+.Dv SOCK_STREAM
sockets to discard packets with a TTL lower than the option value.
This can be used to implement the
.Em Generalized TTL Security Mechanism (GTSM)