.\" $OpenBSD: bgpctl.8,v 1.27 2005/07/09 07:53:25 jmc Exp $
.\"
.\" Copyright (c) 2003 Henning Brauer <henning@openbsd.org>
.\"
.\" Permission to use, copy, modify, and distribute this software for any
.\" purpose with or without fee is hereby granted, provided that the above
.\" copyright notice and this permission notice appear in all copies.
.\"
.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
.Dd December 22, 2003
.Dt BGPCTL 8
.Os
.Sh NAME
.Nm bgpctl
.Nd control the Border Gateway Protocol daemon
.Sh SYNOPSIS
.Nm bgpctl
.Op Fl n
.Op Fl s Ar socket
.Ar command
.Op Ar arguments ...
.Sh DESCRIPTION
The
.Nm
program controls the
.Xr bgpd 8
daemon.
Commands to switch between displays may be abbreviated to the
minimum unambiguous prefix; for example,
.Cm s s
for
.Cm show summary .
.Pp
The options are as follows:
.Bl -tag -width Ds
.It Fl n
Show neighbors' IP addresses instead of their description.
.It Fl s Ar socket
Use
.Ar socket
instead of the default
.Pa /var/run/bgpd.sock
to communicate with
.Xr bgpd 8 .
.El
.Pp
The commands are as follows:
.Bl -tag -width xxxxxx
.It Cm fib couple
Insert the learned routes into the Forward Information Base a.k.a. the kernel
routing table.
.It Cm fib decouple
Remove the learned routes from the Forward Information Base a.k.a. the kernel
routing table.
.It Cm neighbor Ar peer Cm up
Take the BGP session to the specified neighbor up.
.Ar peer
may be the neighbor's address or description.
.It Cm neighbor Ar peer Cm down
Take the BGP session to the specified neighbor down.
.Ar peer
may be the neighbor's address or description.
.It Cm neighbor Ar peer Cm clear
Stop and restart the BGP session to the specified neighbor.
.Ar peer
may be the neighbor's address or description.
.It Cm network add Ar prefix
Add the specified prefix to the list of announced networks.
.It Cm network delete Ar prefix
Remove the specified prefix from the list of announced networks.
.It Cm network flush
Remove all dynamically added prefixes from the list of announced networks.
.It Cm network show
Show all announced networks.
.It Cm reload
Reload the configuration file.
.It Cm show fib Ar filter
Show routes from
.Xr bgpd 8 Ns 's
view of the Forward Information Base.
.Ar filter
can be an IP address, in which case the route to this address is shown,
or a flag:
.Pp
.Bl -tag -width connected -compact
.It Cm connected
Show only connected routes.
.It Cm static
Show only static routes.
.It Cm bgp
Show only routes originating from
.Xr bgpd 8
itself.
.It Cm nexthop
Show only routes required to reach a BGP nexthop.
.El
.It Cm show interfaces
Show the interface states.
.It Cm show neighbor Ar peer modifier
Show detailed information about the neighbor identified by
.Ar peer ,
which may be the neighbor's address or description,
according to the given
.Ar modifier :
.Pp
.Bl -tag -width messages -compact
.It Cm messages
Show statistics about sent and received BGP messages.
.It Cm timers
Show the BGP timers.
.El
.It Cm show nexthop
Show the list of BGP nexthops and the result of their validity check.
.It Cm show rib Ar filter
Show routes from the
.Xr bgpd 8
Routing Information Base.
.Ar filter
can be an IP address, a CIDR prefix, an AS filter or nothing:
.Pp
.Bl -tag -width "address/len all" -compact
.It Ar address
Show best matching route for address.
.It Ar address Ns Li / Ns Ar len
Show RIB entry for this CIDR prefix.
.It Xo
.Ar address Ns Li / Ns Ar len
.Cm all
.Xc
Show all entries in the specified range.
.\".It Ar address/len Cm longer-prefixes
.It Cm as Ar as
Show all entries with
.Ar as
anywhere in the AS path.
.It Cm source-as Ar as
Show all entries with
.Ar as
as rightmost AS.
.It Cm transit-as Ar as
Show all entries with
.Ar as
anywhere but rightmost.
.It Cm empty-as
Show all entries that are internal routes with no AS's in the AS path.
.It Cm summary
This is the same as the
.Ic show summary
command.
.El
.It Cm show summary
Show a list of all neighbors, including information about the session state
and message counters.
.El
.Sh FILES
.Bl -tag -width "/etc/bgpd.conf" -compact
.It Pa /etc/bgpd.conf
default
.Xr bgpd 8
configuration file
.El
.Sh SEE ALSO
.Xr bgpd.conf 5 ,
.Xr bgpd 8
.Sh HISTORY
The
.Nm
program first appeared in
.Ox 3.5 .