diff options
| -rw-r--r-- | share/man/man4/netintro.4 | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/share/man/man4/netintro.4 b/share/man/man4/netintro.4 index e97bdce99e9..7a2bee5f52e 100644 --- a/share/man/man4/netintro.4 +++ b/share/man/man4/netintro.4 @@ -1,4 +1,4 @@ -.\" $OpenBSD: netintro.4,v 1.26 2004/08/15 23:27:35 jaredy Exp $ +.\" $OpenBSD: netintro.4,v 1.27 2004/08/21 21:22:43 jaredy Exp $ .\" $NetBSD: netintro.4,v 1.4 1995/10/19 08:03:40 jtc Exp $ .\" .\" Copyright (c) 1983, 1990, 1991, 1993 @@ -105,6 +105,27 @@ and/or in the system error log, (see .Xr syslogd 8 ) , due to errors in device operation. +.Pp +Network interfaces may be collected together into interface groups. +An interface group is a container that can be used generically when +referring to any interface by related some criteria. +Interfaces may be a member of any number of interface groups. +All interfaces are members of their interface family group by default. +For example, a PPP interface such as +.Li ppp0 +is a member of the PPP interface family group, +.Li ppp . +When an action is performed on an interface group, such as packet +filtering by the +.Xr pf 4 +subsystem, the operation will be applied to each member interface in the +group, if supported by the subsystem. +The +.Xr ifconfig 8 +utility can be used to view and assign membership of an interface to an +interface group with the +.Cm group +modifier. .Sh PROTOCOLS The system currently supports the Internet protocols (IPv4 and IPv6), @@ -484,6 +505,7 @@ from the group .Xr ip 4 , .Xr ip6 4 , .Xr lo 4 , +.Xr pf 4 , .Xr tcp 4 , .Xr udp 4 , .Xr hosts 5 , |