-.\" $OpenBSD: ifconfig.8,v 1.280 2017/03/20 14:06:26 jmc Exp $
+.\" $OpenBSD: ifconfig.8,v 1.281 2017/04/05 08:45:33 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 $
.\"
.\"
.\" @(#)ifconfig.8 8.4 (Berkeley) 6/1/94
.\"
-.Dd $Mdocdate: March 20 2017 $
+.Dd $Mdocdate: April 5 2017 $
.Dt IFCONFIG 8
.Os
.Sh NAME
.Cm hwfeatures
shows the maximum supported MTU.
.It Cm netmask Ar mask
-(inet and inet6)
+(inet and inet6 only)
Specify how much of the address to reserve for subdividing
networks into subnetworks.
The mask includes the network part of the local address
.It Cm blocknonip Ar interface
Mark
.Ar interface
-so that no non-IPv4, IPv6, ARP, or Reverse
+so that only IPv4, IPv6, ARP, and Reverse
ARP packets are accepted from it or forwarded to it from other
bridge member interfaces.
.It Cm -blocknonip Ar interface
Set the trunk protocol.
Refer to
.Xr trunk 4
-for a complete list of the available protocols,
+for a complete list of the available protocols.
.El
.Sh TUNNEL
.nr nS 1