correct the description of VLAN_MTU; from brad smith

ok sthen haesbaert

while here, knock out a useless .Pp, and provide a section number for
an Xr;

1 files changed, 7 insertions, 5 deletions

diff --git a/sbin/ifconfig/ifconfig.8 b/sbin/ifconfig/ifconfig.8
index adc31fb7833..6fa27f7ea88 100644
--- a/sbin/ifconfig/ifconfig.8
+++ b/sbin/ifconfig/ifconfig.8
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: ifconfig.8,v 1.228 2012/05/31 17:50:59 deraadt Exp $
+.\"	$OpenBSD: ifconfig.8,v 1.229 2012/08/27 19:41:19 jmc Exp $
 .\"	$NetBSD: ifconfig.8,v 1.11 1996/01/04 21:27:29 pk Exp $
 .\"     $FreeBSD: ifconfig.8,v 1.16 1998/02/01 07:03:29 steve Exp $
 .\"
@@ -31,7 +31,7 @@
 .\"
 .\"     @(#)ifconfig.8	8.4 (Berkeley) 6/1/94
 .\"
-.Dd $Mdocdate: May 31 2012 $
+.Dd $Mdocdate: August 27 2012 $
 .Dt IFCONFIG 8
 .Os
 .Sh NAME
@@ -256,10 +256,13 @@ As above, for TCP in IPv4 datagrams.
 .It Sy CSUM_UDPv4
 As above, for UDP.
 .It Sy VLAN_MTU
-MTU can be configured on a per-vlan basis.
+The device can handle full sized frames, plus the size
+of the
+.Xr vlan 4
+tag.
 .It Sy VLAN_HWTAGGING
 On transmit, the device can prepend the
-.Xr vlan
+.Xr vlan 4
 tag.
 .It Sy CSUM_TCPv6
 As CSUM_TCPv4, but supports IPv6 datagrams.
@@ -424,7 +427,6 @@ This may be used to enable an interface after an
 It happens automatically when setting the first address on an interface.
 If the interface was reset when previously marked down,
 the hardware will be re-initialized.
-.Pp
 .It Cm wol
 Enable Wake on LAN (WoL).
 When enabled, reception of a WoL frame will cause the network card to