.\"        $NetBSD: route.conf.5,v 1.5 2012/05/02 22:38:31 wiz Exp $
.\"
.\" Copyright (c) 2004 Thomas Klausner
.\" All rights reserved.
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.Dd May 1, 2012
.Dt ROUTE.CONF 5
.Os
.Sh NAME
.Nm route.conf
.Nd static routes config file
.Sh DESCRIPTION
The
.Nm
file is read by the
.Pa staticroute
rc.d script during system start-up and shutdown,
and is intended for adding and removing static routes.
.Ss FILE FORMAT
Lines starting with a hash
.Pq Sq #
are comments and ignored.
Lines starting with a plus sign
.Pq Sq +
are run during start-up,
while lines starting with a minus sign
.Pq Sq \-
are run during system shutdown.
If a line starts with a
.Sq \&! ,
the rest of the line will get evaluated as a shell script fragment.
All other lines are passed to
.Xr route 8 .
During start-up, they are passed behind a
.Dq Ic route add \-
command and during shutdown behind a
.Dq Ic route delete \-
command.
.Sh FILES
.Bl -tag -width XXetcXrouteXconfXX
.It Pa /etc/route.conf
The
.Nm
file resides in
.Pa /etc .
.It Pa /etc/rc.d/staticroute
.Xr rc.d 8
script that parses
.Nm .
.El
.Sh EXAMPLES
In this example, the interface for the desired routing changes is set,
the IP address on that interface is determined, and a route is added
during startup, or deleted during system shutdown.
.Bd -literal -offset indent
# Set interface and determine current IP address for added route.
!ifname=bnx0
!ipaddr=$(/sbin/ifconfig ${ifname} | awk '$1 == "inet" {print $2}')
net 10.10.1 -interface ${ipaddr}
.Ed
.Pp
In this example,
IP forwarding is turned on during
start-up, and a static route added for 192.168.2.0.
During system shutdown, the route is removed
and IP forwarding turned off.
.Bd -literal -offset indent
# Turn on/off IP forwarding.
+sysctl -w net.inet.ip.forwarding=1
-sysctl -w net.inet.ip.forwarding=0
net 192.168.2.0 -netmask 255.255.255.0 192.168.150.2
.Ed
.Sh SEE ALSO
.Xr rc.conf 5 ,
.Xr rc 8 ,
.Xr route 8