From: angelos <angelos@openbsd.org>
Date: Sat, 8 Apr 2000 18:49:28 +0000 (+0000)
Subject: Document IFF_LINK0 flag.
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=5adb89405733e58cea130c403071c683df1a1712;p=openbsd

Document IFF_LINK0 flag.
---

diff --git a/share/man/man4/enc.4 b/share/man/man4/enc.4
index 3d022771dd6..783dbd382d4 100644
--- a/share/man/man4/enc.4
+++ b/share/man/man4/enc.4
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: enc.4,v 1.5 2000/01/15 19:43:41 angelos Exp $
+.\"	$OpenBSD: enc.4,v 1.6 2000/04/08 18:49:28 angelos Exp $
 .Dd October 7, 1999
 .Dt ENC 4
 .Os
@@ -44,6 +44,16 @@ Note that the
 .Dq enc0
 interface may not be used in a bridge configuration.
 .Pp
+If the
+.Dv IFF_LINK0
+flag is set on an
+.Nm
+interface, IP-in-IP encapsulation (instead of Ethernet-in-IP) is
+done.
+Its use is currently experimental.
+This flag should not be set when the interface is used in conjunction
+with the bridge.
+.Pp
 The last use of the
 .Nm
 interface is to allow an administrator to see outgoing packets before