829 lines
19 KiB
Groff
829 lines
19 KiB
Groff
.\" Copyright (c) 1983, 1990, 1992, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)netstat.1 8.8 (Berkeley) 4/18/94
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.\" $FreeBSD$
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.\"
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.Dd September 9, 2017
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.Dt NETSTAT 1
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.Os
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.Sh NAME
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.Nm netstat
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.Nd show network status and statistics
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.Sh SYNOPSIS
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.Bk -words
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.Bl -tag -width "netstat"
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.It Nm
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.Op Fl -libxo
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.Op Fl 46AaLnRSTWx
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.Op Fl f Ar protocol_family | Fl p Ar protocol
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.Op Fl M Ar core
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.Op Fl N Ar system
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.It Nm Fl i | I Ar interface
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.Op Fl -libxo
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.Op Fl 46abdhnW
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.Op Fl f Ar address_family
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.Op Fl M Ar core
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.Op Fl N Ar system
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.It Nm Fl w Ar wait
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.Op Fl -libxo
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.Op Fl I Ar interface
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.Op Fl 46d
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.Op Fl M Ar core
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.Op Fl N Ar system
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.Op Fl q Ar howmany
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.It Nm Fl s
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.Op Fl -libxo
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.Op Fl 46sz
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.Op Fl f Ar protocol_family | Fl p Ar protocol
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.Op Fl M Ar core
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.Op Fl N Ar system
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.It Nm Fl i | I Ar interface Fl s
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.Op Fl -libxo
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.Op Fl 46s
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.Op Fl f Ar protocol_family | Fl p Ar protocol
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.Op Fl M Ar core
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.Op Fl N Ar system
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.It Nm Fl m
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.Op Fl -libxo
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.Op Fl M Ar core
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.Op Fl N Ar system
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.It Nm Fl B
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.Op Fl -libxo
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.Op Fl z
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.Op Fl I Ar interface
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.It Nm Fl r
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.Op Fl -libxo
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.Op Fl 46nW
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.Op Fl F Ar fibnum
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.Op Fl f Ar address_family
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.It Nm Fl rs
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.Op Fl -libxo
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.Op Fl s
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.Op Fl M Ar core
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.Op Fl N Ar system
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.It Nm Fl g
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.Op Fl -libxo
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.Op Fl 46W
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.Op Fl f Ar address_family
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.It Nm Fl gs
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.Op Fl -libxo
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.Op Fl 46s
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.Op Fl f Ar address_family
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.Op Fl M Ar core
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.Op Fl N Ar system
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.It Nm Fl Q
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.Op Fl -libxo
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.El
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.Ek
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.Sh DESCRIPTION
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The
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.Nm
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command symbolically displays the contents of various network-related
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data structures.
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There are a number of output formats,
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depending on the options for the information presented.
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.Bl -tag -width indent
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.It Xo
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.Bk -words
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.Nm
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.Op Fl 46AaLnRSTWx
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.Op Fl f Ar protocol_family | Fl p Ar protocol
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.Op Fl M Ar core
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.Op Fl N Ar system
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.Ek
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.Xc
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Display a list of active sockets
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(protocol control blocks)
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for each network protocol.
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.Pp
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The default display for active sockets shows the local
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and remote addresses, send and receive queue sizes (in bytes), protocol,
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and the internal state of the protocol.
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Address formats are of the form
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.Dq host.port
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or
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.Dq network.port
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if a socket's address specifies a network but no specific host address.
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When known, the host and network addresses are displayed symbolically
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according to the databases
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.Xr hosts 5
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and
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.Xr networks 5 ,
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respectively.
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If a symbolic name for an address is unknown, or if
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the
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.Fl n
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option is specified, the address is printed numerically, according
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to the address family.
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For more information regarding
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the Internet IPv4
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.Dq dot format ,
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refer to
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.Xr inet 3 .
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Unspecified,
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or
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.Dq wildcard ,
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addresses and ports appear as
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.Dq Li * .
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.Bl -tag -width indent
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.It Fl -libxo
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Generate output via
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.Xr libxo 3
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in a selection of different human and machine readable formats.
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See
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.Xr xo_parse_args 3
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for details on command line arguments.
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.It Fl 4
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Show IPv4 only.
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See
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.Sx GENERAL OPTIONS .
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.It Fl 6
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Show IPv6 only.
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See
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.Sx GENERAL OPTIONS .
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.It Fl A
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Show the address of a protocol control block (PCB)
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associated with a socket; used for debugging.
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.It Fl a
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Show the state of all sockets;
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normally sockets used by server processes are not shown.
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.It Fl L
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Show the size of the various listen queues.
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The first count shows the number of unaccepted connections,
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the second count shows the amount of unaccepted incomplete connections,
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and the third count is the maximum number of queued connections.
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.It Fl n
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Do not resolve numeric addresses and port numbers to names.
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See
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.Sx GENERAL OPTIONS .
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.It Fl R
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Display the flowid and flowtype for each socket.
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flowid is a 32 bit hardware specific identifier for each flow.
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flowtype defines which protocol fields are hashed to produce the id.
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A complete listing is available in
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.Pa sys/mbuf.h
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under
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.Dv M_HASHTYPE_* .
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.It Fl S
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Show network addresses as numbers (as with
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.Fl n )
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but show ports symbolically.
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.It Fl T
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Display diagnostic information from the TCP control block.
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Fields include the number of packets requiring retransmission,
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received out-of-order, and those advertising a zero-sized window.
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.It Fl W
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Avoid truncating addresses even if this causes some fields to overflow.
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.It Fl x
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Display socket buffer and TCP timer statistics for each
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internet socket.
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.Pp
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The
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.Fl x
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flag causes
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.Nm
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to output all the information recorded about data
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stored in the socket buffers.
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The fields are:
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.Bl -column ".Li R-MBUF"
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.It Li R-MBUF Ta Number of mbufs in the receive queue.
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.It Li S-MBUF Ta Number of mbufs in the send queue.
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.It Li R-CLUS Ta Number of clusters, of any type, in the receive
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queue.
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.It Li S-CLUS Ta Number of clusters, of any type, in the send queue.
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.It Li R-HIWA Ta Receive buffer high water mark, in bytes.
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.It Li S-HIWA Ta Send buffer high water mark, in bytes.
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.It Li R-LOWA Ta Receive buffer low water mark, in bytes.
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.It Li S-LOWA Ta Send buffer low water mark, in bytes.
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.It Li R-BCNT Ta Receive buffer byte count.
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.It Li S-BCNT Ta Send buffer byte count.
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.It Li R-BMAX Ta Maximum bytes that can be used in the receive buffer.
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.It Li S-BMAX Ta Maximum bytes that can be used in the send buffer.
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.It Li rexmt Ta Time, in seconds, to fire Retransmit Timer, or 0 if not armed.
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.It Li persist Ta Time, in seconds, to fire Retransmit Persistence, or 0 if not armed.
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.It Li keep Ta Time, in seconds, to fire Keep Alive, or 0 if not armed.
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.It Li 2msl Ta Time, in seconds, to fire 2*msl TIME_WAIT Timer, or 0 if not armed.
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.It Li delack Ta Time, in seconds, to fire Delayed ACK Timer, or 0 if not armed.
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.It Li rcvtime Ta Time, in seconds, since last packet received.
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.El
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.It Fl f Ar protocol_family
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Filter by
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.Ar protocol_family .
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See
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.Sx GENERAL OPTIONS .
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.It Fl p Ar protocol
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Filter by
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.Ar protocol .
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See
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.Sx GENERAL OPTIONS .
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.It Fl M
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Use an alternative core.
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See
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.Sx GENERAL OPTIONS .
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.It Fl N
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Use an alternative kernel image.
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See
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.Sx GENERAL OPTIONS .
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.El
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.It Xo
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.Bk -words
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.Nm
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.Fl i | I Ar interface
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.Op Fl 46abdhnW
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.Op Fl f Ar address_family
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.Op Fl M Ar core
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.Op Fl N Ar system
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.Ek
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.Xc
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Show the state of all network interfaces or a single
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.Ar interface
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which have been auto-configured
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(interfaces statically configured into a system, but not
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located at boot time are not shown).
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An asterisk
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.Pq Dq Li *
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after an interface name indicates that the interface is
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.Dq down .
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.Pp
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When
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.Nm
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is invoked with
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.Fl i
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.Pq all interfaces
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or
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.Fl I Ar interface ,
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it provides a table of cumulative
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statistics regarding packets transferred, errors, and collisions.
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The network addresses of the interface
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and the maximum transmission unit
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.Pq Dq mtu
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are also displayed.
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.Bl -tag -width indent
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.It Fl 4
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Show IPv4 only.
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See
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.Sx GENERAL OPTIONS .
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.It Fl 6
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Show IPv6 only.
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See
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.Sx GENERAL OPTIONS .
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.It Fl a
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Multicast addresses currently in use are shown
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for each Ethernet interface and for each IP interface address.
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Multicast addresses are shown on separate lines following the interface
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address with which they are associated.
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.It Fl b
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Show the number of bytes in and out.
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.It Fl d
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Show the number of dropped packets.
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.It Fl h
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Print all counters in human readable form.
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.It Fl n
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Do not resolve numeric addresses and port numbers to names.
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See
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.Sx GENERAL OPTIONS .
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.It Fl W
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Avoid truncating interface names even if this causes some fields to overflow.
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.Sx GENERAL OPTIONS .
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.It Fl f Ar protocol_family
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Filter by
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.Ar protocol_family .
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See
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.Sx GENERAL OPTIONS .
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.El
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.It Xo
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.Bk -words
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.Nm
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.Fl w Ar wait
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.Op Fl I Ar interface
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.Op Fl 46d
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.Op Fl M Ar core
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.Op Fl N Ar system
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.Op Fl q Ar howmany
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.Ek
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.Xc
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At intervals of
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.Ar wait
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seconds, display the information regarding packet traffic on all
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configured network interfaces or a single
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.Ar interface .
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.Pp
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When
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.Nm
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is invoked with the
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.Fl w
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option and a
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.Ar wait
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interval argument, it displays a running count of statistics related to
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network interfaces.
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An obsolescent version of this option used a numeric parameter
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with no option, and is currently supported for backward compatibility.
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By default, this display summarizes information for all interfaces.
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Information for a specific interface may be displayed with the
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.Fl I Ar interface
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option.
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.Bl -tag -width indent
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.It Fl I Ar interface
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Only show information regarding
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.Ar interface
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.It Fl 4
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Show IPv4 only.
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See
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.Sx GENERAL OPTIONS .
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.It Fl 6
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Show IPv6 only.
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See
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.Sx GENERAL OPTIONS .
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.It Fl d
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Show the number of dropped packets.
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.It Fl M
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Use an alternative core.
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See
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.Sx GENERAL OPTIONS .
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.It Fl N
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Use an alternative kernel image.
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See
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.Sx GENERAL OPTIONS .
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.It Fl q
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Exit after
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.Ar howmany
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outputs.
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.El
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.It Xo
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.Bk -words
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.Nm
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.Fl s
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.Op Fl 46sz
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.Op Fl f Ar protocol_family | Fl p Ar protocol
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.Op Fl M Ar core
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.Op Fl N Ar system
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.Ek
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.Xc
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Display system-wide statistics for each network protocol.
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.Bl -tag -width indent
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.It Fl 4
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Show IPv4 only.
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See
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.Sx GENERAL OPTIONS .
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.It Fl 6
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Show IPv6 only.
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See
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.Sx GENERAL OPTIONS .
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.It Fl s
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If
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.Fl s
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is repeated, counters with a value of zero are suppressed.
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.It Fl z
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Reset statistic counters after displaying them.
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.It Fl f Ar protocol_family
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Filter by
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.Ar protocol_family .
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See
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.Sx GENERAL OPTIONS .
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.It Fl p Ar protocol
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Filter by
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.Ar protocol .
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|
See
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.Sx GENERAL OPTIONS .
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.It Fl M
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|
Use an alternative core.
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See
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|
.Sx GENERAL OPTIONS .
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.It Fl N
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|
Use an alternative kernel image
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|
See
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|
.Sx GENERAL OPTIONS .
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.El
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|
.It Xo
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|
.Bk -words
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.Nm
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|
.Fl i | I Ar interface Fl s
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.Op Fl 46s
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.Op Fl f Ar protocol_family | Fl p Ar protocol
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|
.Op Fl M Ar core
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.Op Fl N Ar system
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|
.Ek
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|
.Xc
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|
Display per-interface statistics for each network protocol.
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|
.Bl -tag -width indent
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|
.It Fl 4
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|
Show IPv4 only
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|
See
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|
.Sx GENERAL OPTIONS .
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.It Fl 6
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|
Show IPv6 only
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|
See
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|
.Sx GENERAL OPTIONS .
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.It Fl s
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If
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.Fl s
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|
is repeated, counters with a value of zero are suppressed.
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|
.It Fl f Ar protocol_family
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|
Filter by
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|
.Ar protocol_family .
|
|
See
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|
.Sx GENERAL OPTIONS .
|
|
.It Fl p Ar protocol
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|
Filter by
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|
.Ar protocol .
|
|
See
|
|
.Sx GENERAL OPTIONS .
|
|
.It Fl M
|
|
Use an alternative core
|
|
See
|
|
.Sx GENERAL OPTIONS .
|
|
.It Fl N
|
|
Use an alternative kernel image
|
|
See
|
|
.Sx GENERAL OPTIONS .
|
|
.El
|
|
.It Xo
|
|
.Bk -words
|
|
.Nm
|
|
.Fl m
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|
.Op Fl M Ar core
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|
.Op Fl N Ar system
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|
.Ek
|
|
.Xc
|
|
Show statistics recorded by the memory management routines
|
|
.Pq Xr mbuf 9 .
|
|
The network manages a private pool of memory buffers.
|
|
.Bl -tag -width indent
|
|
.It Fl M
|
|
Use an alternative core
|
|
See
|
|
.Sx GENERAL OPTIONS .
|
|
.It Fl N
|
|
Use an alternative kernel image
|
|
See
|
|
.Sx GENERAL OPTIONS .
|
|
.El
|
|
.It Xo
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|
.Bk -words
|
|
.Nm
|
|
.Fl B
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|
.Op Fl z
|
|
.Op Fl I Ar interface
|
|
.Ek
|
|
.Xc
|
|
Show statistics about
|
|
.Xr bpf 4
|
|
peers.
|
|
This includes information like
|
|
how many packets have been matched, dropped and received by the
|
|
bpf device, also information about current buffer sizes and device
|
|
states.
|
|
.Pp
|
|
The
|
|
.Xr bpf 4
|
|
flags displayed when
|
|
.Nm
|
|
is invoked with the
|
|
.Fl B
|
|
option represent the underlying parameters of the bpf peer.
|
|
Each flag is
|
|
represented as a single lower case letter.
|
|
The mapping between the letters and flags in order of appearance are:
|
|
.Bl -column ".Li i"
|
|
.It Li p Ta Set if listening promiscuously
|
|
.It Li i Ta Dv BIOCIMMEDIATE No has been set on the device
|
|
.It Li f Ta Dv BIOCGHDRCMPLT No status: source link addresses are being
|
|
filled automatically
|
|
.It Li s Ta Dv BIOCGSEESENT No status: see packets originating locally and
|
|
remotely on the interface.
|
|
.It Li a Ta Packet reception generates a signal
|
|
.It Li l Ta Dv BIOCLOCK No status: descriptor has been locked
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|
.El
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|
.Pp
|
|
For more information about these flags, please refer to
|
|
.Xr bpf 4 .
|
|
.Bl -tag -width indent
|
|
.It Fl z
|
|
Reset statistic counters after displaying them.
|
|
.El
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|
.It Xo
|
|
.Bk -words
|
|
.Nm
|
|
.Fl r
|
|
.Op Fl 46AnW
|
|
.Op Fl F Ar fibnum
|
|
.Op Fl f Ar address_family
|
|
.Op Fl M Ar core
|
|
.Op Fl N Ar system
|
|
.Ek
|
|
.Xc
|
|
Display the contents of routing tables.
|
|
.Pp
|
|
When
|
|
.Nm
|
|
is invoked with the routing table option
|
|
.Fl r ,
|
|
it lists the available routes and their status.
|
|
Each route consists of a destination host or network, and a gateway to use
|
|
in forwarding packets.
|
|
The flags field shows a collection of information about the route stored
|
|
as binary choices.
|
|
The individual flags are discussed in more detail in the
|
|
.Xr route 8
|
|
and
|
|
.Xr route 4
|
|
manual pages.
|
|
The mapping between letters and flags is:
|
|
.Bl -column ".Li W" ".Dv RTF_WASCLONED"
|
|
.It Li 1 Ta Dv RTF_PROTO1 Ta "Protocol specific routing flag #1"
|
|
.It Li 2 Ta Dv RTF_PROTO2 Ta "Protocol specific routing flag #2"
|
|
.It Li 3 Ta Dv RTF_PROTO3 Ta "Protocol specific routing flag #3"
|
|
.It Li B Ta Dv RTF_BLACKHOLE Ta "Just discard pkts (during updates)"
|
|
.It Li b Ta Dv RTF_BROADCAST Ta "The route represents a broadcast address"
|
|
.It Li D Ta Dv RTF_DYNAMIC Ta "Created dynamically (by redirect)"
|
|
.It Li G Ta Dv RTF_GATEWAY Ta "Destination requires forwarding by intermediary"
|
|
.It Li H Ta Dv RTF_HOST Ta "Host entry (net otherwise)"
|
|
.It Li L Ta Dv RTF_LLINFO Ta "Valid protocol to link address translation"
|
|
.It Li M Ta Dv RTF_MODIFIED Ta "Modified dynamically (by redirect)"
|
|
.It Li R Ta Dv RTF_REJECT Ta "Host or net unreachable"
|
|
.It Li S Ta Dv RTF_STATIC Ta "Manually added"
|
|
.It Li U Ta Dv RTF_UP Ta "Route usable"
|
|
.It Li X Ta Dv RTF_XRESOLVE Ta "External daemon translates proto to link address"
|
|
.El
|
|
.Pp
|
|
Direct routes are created for each
|
|
interface attached to the local host;
|
|
the gateway field for such entries shows the address of the outgoing interface.
|
|
The refcnt field gives the
|
|
current number of active uses of the route.
|
|
Connection oriented
|
|
protocols normally hold on to a single route for the duration of
|
|
a connection while connectionless protocols obtain a route while sending
|
|
to the same destination.
|
|
The use field provides a count of the number of packets
|
|
sent using that route.
|
|
The interface entry indicates the network interface utilized for the route.
|
|
.Bl -tag -width indent
|
|
.It Fl 4
|
|
Show IPv4 only.
|
|
See
|
|
.Sx GENERAL OPTIONS .
|
|
.It Fl 6
|
|
Show IPv6 only.
|
|
See
|
|
.Sx GENERAL OPTIONS .
|
|
.It Fl n
|
|
Do not resolve numeric addresses and port numbers to names.
|
|
See
|
|
.Sx GENERAL OPTIONS .
|
|
.It Fl W
|
|
Show the path MTU for each route, and print interface names with a
|
|
wider field size.
|
|
.It Fl F
|
|
Display the routing table with the number
|
|
.Ar fibnum .
|
|
If the specified
|
|
.Ar fibnum
|
|
is -1 or
|
|
.Fl F
|
|
is not specified,
|
|
the default routing table is displayed.
|
|
.It Fl f
|
|
Display the routing table for a particular
|
|
.Ar address_family .
|
|
.It Fl M
|
|
Use an alternative core
|
|
See
|
|
.Sx GENERAL OPTIONS .
|
|
.It Fl N
|
|
Use an alternative kernel image
|
|
See
|
|
.Sx GENERAL OPTIONS .
|
|
.El
|
|
.It Xo
|
|
.Bk -words
|
|
.Nm
|
|
.Fl rs
|
|
.Op Fl s
|
|
.Op Fl M Ar core
|
|
.Op Fl N Ar system
|
|
.Ek
|
|
.Xc
|
|
Display routing statistics.
|
|
.Bl -tag -width indent
|
|
.It Fl s
|
|
If
|
|
.Fl s
|
|
is repeated, counters with a value of zero are suppressed.
|
|
.It Fl M
|
|
Use an alternative core
|
|
See
|
|
.Sx GENERAL OPTIONS .
|
|
.It Fl N
|
|
Use an alternative kernel image
|
|
See
|
|
.Sx GENERAL OPTIONS .
|
|
.El
|
|
.It Xo
|
|
.Bk -words
|
|
.Nm
|
|
.Fl g
|
|
.Op Fl 46W
|
|
.Op Fl f Ar address_family
|
|
.Op Fl M Ar core
|
|
.Op Fl N Ar system
|
|
.Ek
|
|
.Xc
|
|
Display the contents of the multicast virtual interface tables,
|
|
and multicast forwarding caches.
|
|
Entries in these tables will appear only when the kernel is
|
|
actively forwarding multicast sessions.
|
|
This option is applicable only to the
|
|
.Cm inet
|
|
and
|
|
.Cm inet6
|
|
address families.
|
|
.Bl -tag -width indent
|
|
.It Fl 4
|
|
Show IPv4 only
|
|
See
|
|
.Sx GENERAL OPTIONS .
|
|
.It Fl 6
|
|
Show IPv6 only
|
|
See
|
|
.Sx GENERAL OPTIONS .
|
|
.It Fl W
|
|
Avoid truncating addresses even if this causes some fields to overflow.
|
|
.It Fl f Ar protocol_family
|
|
Filter by
|
|
.Ar protocol_family .
|
|
See
|
|
.Sx GENERAL OPTIONS .
|
|
.It Fl M
|
|
Use an alternative core
|
|
See
|
|
.Sx GENERAL OPTIONS .
|
|
.It Fl N
|
|
Use an alternative kernel image
|
|
See
|
|
.Sx GENERAL OPTIONS .
|
|
.El
|
|
.It Xo
|
|
.Bk -words
|
|
.Nm
|
|
.Fl gs
|
|
.Op Fl 46s
|
|
.Op Fl f Ar address_family
|
|
.Op Fl M Ar core
|
|
.Op Fl N Ar system
|
|
.Ek
|
|
.Xc
|
|
Show multicast routing statistics.
|
|
.Bl -tag -width indent
|
|
.It Fl 4
|
|
Show IPv4 only
|
|
See
|
|
.Sx GENERAL OPTIONS .
|
|
.It Fl 6
|
|
Show IPv6 only
|
|
See
|
|
.Sx GENERAL OPTIONS .
|
|
.It Fl s
|
|
If
|
|
.Fl s
|
|
is repeated, counters with a value of zero are suppressed.
|
|
.It Fl f Ar protocol_family
|
|
Filter by
|
|
.Ar protocol_family .
|
|
See
|
|
.Sx GENERAL OPTIONS .
|
|
.It Fl M
|
|
Use an alternative core
|
|
See
|
|
.Sx GENERAL OPTIONS .
|
|
.It Fl N
|
|
Use an alternative kernel image
|
|
See
|
|
.Sx GENERAL OPTIONS .
|
|
.El
|
|
.It Xo
|
|
.Bk -words
|
|
.Nm
|
|
.Fl Q
|
|
.Ek
|
|
.Xc
|
|
Show
|
|
.Xr netisr 9
|
|
statistics.
|
|
The flags field shows available ISR handlers:
|
|
.Bl -column ".Li W" ".Dv NETISR_SNP_FLAGS_DRAINEDCPU"
|
|
.It Li C Ta Dv NETISR_SNP_FLAGS_M2CPUID Ta "Able to map mbuf to cpu id"
|
|
.It Li D Ta Dv NETISR_SNP_FLAGS_DRAINEDCPU Ta "Has queue drain handler"
|
|
.It Li F Ta Dv NETISR_SNP_FLAGS_M2FLOW Ta "Able to map mbuf to flow id"
|
|
.El
|
|
.El
|
|
.Pp
|
|
.Ss GENERAL OPTIONS
|
|
Some options have the general meaning:
|
|
.Bl -tag -width flag
|
|
.It Fl 4
|
|
Is shorthand for
|
|
.Fl f
|
|
.Ar inet
|
|
.Pq Show only IPv4
|
|
.It Fl 6
|
|
Is shorthand for
|
|
.Fl f
|
|
.Ar inet6
|
|
.Pq Show only IPv6
|
|
.It Fl f Ar address_family , Fl p Ar protocol
|
|
Limit display to those records
|
|
of the specified
|
|
.Ar address_family
|
|
or a single
|
|
.Ar protocol .
|
|
The following address families and protocols are recognized:
|
|
.Pp
|
|
.Bl -tag -width ".Cm netgraph , ng Pq Dv AF_NETGRAPH" -compact
|
|
.It Em Family
|
|
.Em Protocols
|
|
.It Cm inet Pq Dv AF_INET
|
|
.Cm divert , icmp , igmp , ip , ipsec , pim, sctp , tcp , udp
|
|
.It Cm inet6 Pq Dv AF_INET6
|
|
.Cm icmp6 , ip6 , ipsec6 , rip6 , sctp , tcp , udp
|
|
.It Cm pfkey Pq Dv PF_KEY
|
|
.Cm pfkey
|
|
.It Cm netgraph , ng Pq Dv AF_NETGRAPH
|
|
.Cm ctrl , data
|
|
.It Cm unix Pq Dv AF_UNIX
|
|
.It Cm link Pq Dv AF_LINK
|
|
.El
|
|
.Pp
|
|
The program will complain if
|
|
.Ar protocol
|
|
is unknown or if there is no statistics routine for it.
|
|
.It Fl M
|
|
Extract values associated with the name list from the specified core
|
|
instead of the default
|
|
.Pa /dev/kmem .
|
|
.It Fl N
|
|
Extract the name list from the specified system instead of the default,
|
|
which is the kernel image the system has booted from.
|
|
.It Fl n
|
|
Show network addresses and ports as numbers.
|
|
Normally
|
|
.Nm
|
|
attempts to resolve addresses and ports,
|
|
and display them symbolically.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr fstat 1 ,
|
|
.Xr nfsstat 1 ,
|
|
.Xr procstat 1 ,
|
|
.Xr ps 1 ,
|
|
.Xr sockstat 1 ,
|
|
.Xr libxo 3 ,
|
|
.Xr xo_parse_args 3 ,
|
|
.Xr bpf 4 ,
|
|
.Xr inet 4 ,
|
|
.Xr route 4 ,
|
|
.Xr unix 4 ,
|
|
.Xr hosts 5 ,
|
|
.Xr networks 5 ,
|
|
.Xr protocols 5 ,
|
|
.Xr services 5 ,
|
|
.Xr iostat 8 ,
|
|
.Xr route 8 ,
|
|
.Xr trpt 8 ,
|
|
.Xr vmstat 8 ,
|
|
.Xr mbuf 9
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
command appeared in
|
|
.Bx 4.2 .
|
|
.Pp
|
|
IPv6 support was added by WIDE/KAME project.
|
|
.Sh BUGS
|
|
The notion of errors is ill-defined.
|