[src/trunk]: src/share/man/man4 Drop ISO references as it's no longer supported.

[sevan <sevan%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/8dd7ddbbcdb1
branches:  trunk
changeset: 991797:8dd7ddbbcdb1
user:      sevan <sevan%NetBSD.org@localhost>
date:      Wed Aug 01 00:07:27 2018 +0000

description:
Drop ISO references as it's no longer supported.

diffstat:

 share/man/man4/gif.4 |  11 +++--------
 1 files changed, 3 insertions(+), 8 deletions(-)

diffs (46 lines):

diff -r 24903bb4f016 -r 8dd7ddbbcdb1 share/man/man4/gif.4
--- a/share/man/man4/gif.4      Tue Jul 31 22:29:55 2018 +0000
+++ b/share/man/man4/gif.4      Wed Aug 01 00:07:27 2018 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: gif.4,v 1.31 2018/02/18 21:31:32 pgoyette Exp $
+.\"    $NetBSD: gif.4,v 1.32 2018/08/01 00:07:27 sevan Exp $
 .\"    $KAME: gif.4,v 1.24 2001/02/20 12:54:01 itojun Exp $
 .\"
 .\" Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@@ -28,7 +28,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd February 19, 2018
+.Dd August 1, 2018
 .Dt GIF 4
 .Os
 .Sh NAME
@@ -45,8 +45,6 @@
 The behavior of
 .Nm
 is mainly based on RFC 2893 IPv6-over-IPv4 configured tunnel.
-.Nm
-can also tunnel ISO traffic over IPv[46] using EON encapsulation.
 .Pp
 To use
 .Nm gif ,
@@ -131,7 +129,7 @@
 This should be used in mutual agreement with the peer.
 .Ss Packet format
 Every inner packet is encapsulated in an outer packet.
-The inner packet may be IPv4, IPv6, or ISO CLNP.
+The inner packet may be IPv4 or IPv6.
 The outer packet may be IPv4 or IPv6, and has all the
 usual IP headers, including a protocol field that identifies the
 type of inner packet.
@@ -142,9 +140,6 @@
 When the inner packet is IPv6, the protocol field of the outer packet
 is 41
 .Dv ( IPPROTO_IPV6 ) .
-When the inner packet is ISO CNLP, the protocol field of the outer packet
-is 80
-.Dv ( IPPROTO_EON ) .
 .Ss Security
 Malicious party may try to circumvent security filters by using
 tunneled packets.