2011-03-30 13:49:47 +00:00
|
|
|
.TH IPCONFIG 8
|
|
|
|
|
.SH NAME
|
|
|
|
|
ipconfig, rip, linklocal, ipv6on \- Internet configuration and routing
|
|
|
|
|
.SH SYNOPSIS
|
|
|
|
|
.in +0.25i
|
|
|
|
|
.ti -0.25i
|
|
|
|
|
.B ip/ipconfig
|
|
|
|
|
.RB [ -6DGNOPdnpruX ]
|
|
|
|
|
.RB [ -b
|
|
|
|
|
.IR baud ]
|
|
|
|
|
.RB [ -c
|
|
|
|
|
.IR ctl ]
|
|
|
|
|
.RB [ -g
|
|
|
|
|
.IR gateway ]
|
|
|
|
|
.RB [ -h
|
|
|
|
|
.IR host ]
|
|
|
|
|
.RB [ -m
|
|
|
|
|
.IR mtu ]
|
|
|
|
|
.RB [ -o
|
|
|
|
|
.IR dhcp-opt ]
|
2015-01-10 19:27:45 +00:00
|
|
|
.RB [ -f
|
|
|
|
|
.IR dbfile ]
|
2011-03-30 13:49:47 +00:00
|
|
|
.RB [ -x
|
|
|
|
|
.IR netmtpt ]
|
|
|
|
|
[
|
|
|
|
|
.I type
|
|
|
|
|
[
|
|
|
|
|
.I device
|
|
|
|
|
]\|]
|
|
|
|
|
.RI [ verb ]
|
|
|
|
|
[
|
|
|
|
|
.I local
|
|
|
|
|
[
|
|
|
|
|
.I mask
|
|
|
|
|
[
|
|
|
|
|
.I remote
|
|
|
|
|
[
|
|
|
|
|
.I file-server
|
|
|
|
|
[
|
|
|
|
|
.I auth
|
|
|
|
|
]\|]\|]\|]\|]
|
|
|
|
|
.PP
|
|
|
|
|
.B ip/rip
|
|
|
|
|
.RB [ -bdr ]
|
|
|
|
|
.RB [ -x
|
|
|
|
|
.IR netmtpt ]
|
|
|
|
|
.PP
|
|
|
|
|
.B ip/linklocal
|
|
|
|
|
[
|
|
|
|
|
.B -t
|
|
|
|
|
.I gwipv4
|
|
|
|
|
]
|
|
|
|
|
.I mac
|
|
|
|
|
\&...
|
|
|
|
|
.PP
|
|
|
|
|
.B ipv6on
|
|
|
|
|
[
|
|
|
|
|
.I netmtpt
|
|
|
|
|
.I ndbfile
|
|
|
|
|
[
|
|
|
|
|
.I gwv4
|
|
|
|
|
]\|]
|
|
|
|
|
.SH DESCRIPTION
|
|
|
|
|
.I Ipconfig
|
2012-12-06 06:30:16 +00:00
|
|
|
binds a device interface to a mounted IP stack (default
|
2011-03-30 13:49:47 +00:00
|
|
|
.BR /net )
|
|
|
|
|
and configures the interface with a local address and optionally
|
|
|
|
|
a mask, a remote address, a file server and an authentication server address.
|
2012-12-06 06:30:16 +00:00
|
|
|
If no device is specified, the first
|
|
|
|
|
.B ether
|
2012-12-06 06:34:56 +00:00
|
|
|
device on the mounted IP stack is used.
|
2011-03-30 13:49:47 +00:00
|
|
|
The addresses can be specified in the command line or obtained via DHCP.
|
|
|
|
|
If DHCP is requested, it will also obtain the addresses of DNS
|
|
|
|
|
servers, NTP servers, gateways, a Plan 9 file server,
|
|
|
|
|
and a Plan 9 authentication server.
|
|
|
|
|
If this is the first non-loopback
|
|
|
|
|
interface on the IP stack, the information will be written to
|
|
|
|
|
.B /net/ndb
|
|
|
|
|
in the form of an
|
|
|
|
|
.IR ndb (8)
|
|
|
|
|
entry.
|
|
|
|
|
.PP
|
|
|
|
|
.I Type
|
|
|
|
|
may be
|
|
|
|
|
.BR ether ,
|
|
|
|
|
.BR gbe ,
|
|
|
|
|
.BR ppp ,
|
|
|
|
|
.BR pkt ,
|
|
|
|
|
or
|
|
|
|
|
.BR loopback .
|
|
|
|
|
The
|
|
|
|
|
.B gbe
|
|
|
|
|
type is equivalent to
|
|
|
|
|
.B ether
|
|
|
|
|
except that it allows jumbo packets (up to ~9KB).
|
|
|
|
|
The
|
|
|
|
|
.B pkt
|
|
|
|
|
interface passes all IP packets to and from a user program.
|
|
|
|
|
For
|
|
|
|
|
.B ppp
|
|
|
|
|
the device can be any byte stream device.
|
|
|
|
|
.PP
|
|
|
|
|
The verb (default
|
|
|
|
|
.IR add )
|
|
|
|
|
determines the action performed. The usual verbs are:
|
|
|
|
|
.TF remove
|
|
|
|
|
.TP
|
|
|
|
|
.B add
|
|
|
|
|
if the device is not bound to the IP stack, bind it.
|
|
|
|
|
Add the given local address, mask, and remote address to the interface.
|
|
|
|
|
An interface may have multiple addresses.
|
|
|
|
|
.TP
|
|
|
|
|
.B remove
|
|
|
|
|
remove the address from the device interface.
|
|
|
|
|
.TP
|
|
|
|
|
.B unbind
|
|
|
|
|
unbind the device interface and all its addresses from the
|
|
|
|
|
IP stack.
|
|
|
|
|
.PD
|
|
|
|
|
.PP
|
|
|
|
|
The IPv6-specific verbs, which take different arguments, are:
|
|
|
|
|
.TP
|
|
|
|
|
.BI "add6 " "prefix pfx-len onlink auto validlt preflt"
|
|
|
|
|
sets the named IPv6 parameters; see
|
|
|
|
|
.IR ip (3)
|
|
|
|
|
for more detail.
|
|
|
|
|
.TP
|
|
|
|
|
.BI "ra6 " "[ keyword value ] ..."
|
|
|
|
|
sets IPv6 router advertisement parameter
|
|
|
|
|
.IR keyword 's
|
|
|
|
|
.IR value .
|
|
|
|
|
See
|
|
|
|
|
.IR ip (3)
|
|
|
|
|
for more detail.
|
|
|
|
|
Setting
|
|
|
|
|
.I recvra
|
|
|
|
|
non-zero also forks a process to
|
|
|
|
|
receive and process router advertisements.
|
|
|
|
|
Setting
|
|
|
|
|
.I sendra
|
|
|
|
|
non-zero also
|
|
|
|
|
enables IP routing on the interface,
|
|
|
|
|
forks a process to send router advertisements,
|
|
|
|
|
and if no
|
|
|
|
|
.I recvra
|
|
|
|
|
process is running, forks one.
|
|
|
|
|
.PD
|
|
|
|
|
.PP
|
|
|
|
|
The options are:
|
|
|
|
|
.TF M
|
|
|
|
|
.PD
|
|
|
|
|
.TP
|
|
|
|
|
.B 6
|
|
|
|
|
if adding an address (the default action),
|
|
|
|
|
add the IPv6 link-local address.
|
|
|
|
|
.TP
|
|
|
|
|
.B b
|
|
|
|
|
the baud rate to use on a serial line
|
|
|
|
|
when configuring
|
|
|
|
|
.BR PPP .
|
|
|
|
|
.TP
|
|
|
|
|
.B c
|
|
|
|
|
write the control string
|
|
|
|
|
.I ctl
|
|
|
|
|
to the ethernet device control file before starting to configure it.
|
|
|
|
|
May be repeated to specify multiple control writes.
|
|
|
|
|
.TP
|
|
|
|
|
.B d
|
|
|
|
|
use DHCP to determine any unspecified configuration parameters.
|
|
|
|
|
.TP
|
|
|
|
|
.B D
|
|
|
|
|
turn on debugging.
|
|
|
|
|
.TP
|
|
|
|
|
.B g
|
|
|
|
|
the default gateway.
|
|
|
|
|
.TP
|
|
|
|
|
.B G
|
|
|
|
|
use only generic DHCP options. Without this option,
|
|
|
|
|
.I ipconfig
|
|
|
|
|
adds to requests a Vendor Class option with value
|
|
|
|
|
.BI plan9_$ cputype
|
|
|
|
|
and also requests vendor specific options 128 and 129 which we
|
|
|
|
|
interpret as the Plan 9 file server and auth server.
|
|
|
|
|
Replies to these options contain a list of IP addresses for possible
|
|
|
|
|
file servers and auth servers.
|
|
|
|
|
.TP
|
|
|
|
|
.B h
|
|
|
|
|
the hostname to add to DHCP requests. Some DHCP
|
|
|
|
|
servers, such as the one used by Comcast, will not respond
|
|
|
|
|
unless a correct hostname is in the request.
|
|
|
|
|
.TP
|
|
|
|
|
.B m
|
|
|
|
|
the maximum IP packet size to use on this interface.
|
|
|
|
|
.TP
|
|
|
|
|
.B n
|
|
|
|
|
determine parameters but don't configure the interface.
|
|
|
|
|
.TP
|
|
|
|
|
.B N
|
|
|
|
|
look in
|
|
|
|
|
.B /lib/ndb
|
|
|
|
|
for the IP parameters. This only works if the
|
|
|
|
|
interface is an ethernet. It uses the ethernet address to find
|
|
|
|
|
a matching entry.
|
|
|
|
|
.TP
|
|
|
|
|
.B O
|
|
|
|
|
addresses specified on the command line override those obtained via DHCP.
|
|
|
|
|
A command line address of 0 implies no override.
|
|
|
|
|
.TP
|
|
|
|
|
.B p
|
|
|
|
|
write configuration information to
|
|
|
|
|
.BR /net/ndb ,
|
|
|
|
|
even if other network interfaces are already configured
|
|
|
|
|
.TP
|
|
|
|
|
.B P
|
|
|
|
|
do not write configuration information to
|
|
|
|
|
.BR /net/ndb ,
|
|
|
|
|
even if this is the first network interface to be configured
|
|
|
|
|
.TP
|
|
|
|
|
.B r
|
|
|
|
|
by default,
|
|
|
|
|
.I ipconfig
|
|
|
|
|
exits after trying DHCP for 15 seconds with no answer.
|
|
|
|
|
This option directs
|
|
|
|
|
.I ipconfig
|
|
|
|
|
instead to fork a background process that keeps trying forever.
|
|
|
|
|
.TP
|
|
|
|
|
.B u
|
|
|
|
|
disable IPv6 duplicate discovery detection,
|
|
|
|
|
which removes any existing ARP table entry for one of our IPv6 addresses
|
|
|
|
|
before adding new ones.
|
|
|
|
|
.TP
|
2015-01-10 19:27:45 +00:00
|
|
|
.B f
|
|
|
|
|
use the ndb database file
|
|
|
|
|
.I dbfile .
|
|
|
|
|
.TP
|
2011-03-30 13:49:47 +00:00
|
|
|
.B x
|
|
|
|
|
use the IP stack mounted at
|
|
|
|
|
.I netmtpt
|
|
|
|
|
instead of at
|
|
|
|
|
.BR /net .
|
|
|
|
|
.TP
|
|
|
|
|
.B X
|
|
|
|
|
don't fork a process to keep the DHCP lease alive.
|
|
|
|
|
.TP
|
|
|
|
|
.B o
|
|
|
|
|
adds
|
|
|
|
|
.I dhcpoption
|
|
|
|
|
to the list of paramters requested of the DHCP server. The
|
|
|
|
|
result will appear in
|
|
|
|
|
.B /net/ndb
|
|
|
|
|
should this be the first interface. The known options are:
|
|
|
|
|
.RS
|
|
|
|
|
.LP
|
|
|
|
|
.ft L
|
|
|
|
|
arptimeout, baddr, bflen, bootfile, clientid, cookie, discovermask,
|
|
|
|
|
discoverrouter, dns, dom, dumpfile, etherencap, extpath, finger,
|
|
|
|
|
homeagent, impress, ipaddr, ipforward, ipgw, ipmask, irc, lease, log,
|
|
|
|
|
lpr, maxdatagram, maxmsg, message, mtu, name, netbiosdds, netbiosns,
|
|
|
|
|
netbiosscope, netbiostype, ni, nisdomain, nisplus, nisplusdomain,
|
|
|
|
|
nntp, nonlocal, ntp, overload, params, pathplateau, pathtimeout,
|
|
|
|
|
policyfilter, pop3, rebindingtime, renewaltime, rl, rootpath, rs,
|
|
|
|
|
serverid, smtp, st, staticroutes, stdar, subnetslocal, supplymask,
|
|
|
|
|
swap, sys, tcpka, tcpkag, tcpttl, tftp, time, timeoff, trailerencap,
|
|
|
|
|
ttl, type, vendorclass, www, xdispmanager, xfont
|
|
|
|
|
.RE
|
|
|
|
|
.IP
|
|
|
|
|
The options
|
|
|
|
|
.BR ipmask ,
|
|
|
|
|
.BR ipgw ,
|
|
|
|
|
.BR dns ,
|
|
|
|
|
.BR sys ,
|
|
|
|
|
and
|
|
|
|
|
.B ntp
|
|
|
|
|
are always requested.
|
|
|
|
|
.TF M
|
|
|
|
|
.PD
|
|
|
|
|
.PP
|
|
|
|
|
If DHCP is requested, a process is forked
|
|
|
|
|
off to renew the lease before it
|
|
|
|
|
runs out. If the lease does run out, this
|
|
|
|
|
process will remove any configured addresses
|
|
|
|
|
from the interface.
|
|
|
|
|
.PP
|
|
|
|
|
.I Rip
|
|
|
|
|
runs the routing protocol RIP.
|
|
|
|
|
It listens for RIP packets on connected networks and
|
|
|
|
|
updates the kernel routing tables.
|
|
|
|
|
The options are:
|
|
|
|
|
.TF M
|
|
|
|
|
.PD
|
|
|
|
|
.TP
|
|
|
|
|
.B b
|
|
|
|
|
broadcasts routing information onto the networks.
|
|
|
|
|
.TP
|
|
|
|
|
.B n
|
|
|
|
|
gathers routing information but doesn't write to the
|
|
|
|
|
route table. This is useful with
|
|
|
|
|
.B \-d
|
|
|
|
|
to debug a network.
|
|
|
|
|
.TP
|
|
|
|
|
.B x
|
|
|
|
|
use the IP stack mounted at
|
|
|
|
|
.I netmtpt
|
|
|
|
|
instead of at
|
|
|
|
|
.BR /net .
|
|
|
|
|
.TP
|
|
|
|
|
.B d
|
|
|
|
|
turn on (voluminous) debugging.
|
|
|
|
|
.PP
|
|
|
|
|
.I Linklocal
|
|
|
|
|
prints the IPv6 link-local address corresponding to the given
|
|
|
|
|
.I mac
|
|
|
|
|
address.
|
|
|
|
|
Given
|
|
|
|
|
.BR -t ,
|
|
|
|
|
.I linklocal
|
|
|
|
|
instead prints the
|
|
|
|
|
.I 6to4
|
|
|
|
|
EUI-64-based IPv6 address corresponding to
|
|
|
|
|
.I mac
|
|
|
|
|
and
|
|
|
|
|
.I 6to4
|
|
|
|
|
gateway
|
|
|
|
|
.IR gwipv4 .
|
|
|
|
|
.PP
|
|
|
|
|
.I Ipv6on
|
|
|
|
|
uses the network database at
|
|
|
|
|
.I ndbfile
|
|
|
|
|
to configure the network mounted on
|
|
|
|
|
.I netmtpt
|
|
|
|
|
with a link-local address (derived from its MAC address)
|
|
|
|
|
and attempts to add a default IPv6 route to the local
|
|
|
|
|
IPv4 gateway's IPv6 address.
|
|
|
|
|
If
|
|
|
|
|
.I gwv4
|
|
|
|
|
is supplied, it will be used as the gateway IPv4 address.
|
|
|
|
|
.SH EXAMPLES
|
|
|
|
|
Configure Ethernet 0 as the primary IP interface.
|
|
|
|
|
Get all addresses via DHCP. Start up a connection server
|
|
|
|
|
and DNS resolver for this IP stack.
|
|
|
|
|
.IP
|
|
|
|
|
.EX
|
|
|
|
|
% bind -b '#l0' /net
|
|
|
|
|
% bind -a '#I0' /net
|
|
|
|
|
% ip/ipconfig
|
|
|
|
|
% ndb/cs
|
|
|
|
|
% ndb/dns -r
|
|
|
|
|
.EE
|
|
|
|
|
.PP
|
|
|
|
|
Add a second address to the stack.
|
|
|
|
|
.IP
|
|
|
|
|
.EX
|
|
|
|
|
% ip/ipconfig ether /net/ether0 add 12.1.1.2 255.255.255.0
|
|
|
|
|
.EE
|
|
|
|
|
.PP
|
|
|
|
|
At Bell Labs, our primary IP stack is always to the company's internal
|
|
|
|
|
firewall-protected network. The following creates an external
|
|
|
|
|
IP stack to directly access the outside Internet. Note that the
|
|
|
|
|
connection server uses a different set of
|
|
|
|
|
.I ndb
|
|
|
|
|
files. This prevents us from confusing inside and outside name/address
|
|
|
|
|
bindings.
|
|
|
|
|
.IP
|
|
|
|
|
.EX
|
|
|
|
|
% bind -b '#l1' /net.alt
|
|
|
|
|
% bind -b '#I1' /net.alt
|
|
|
|
|
% ip/ipconfig -x /net.alt -g 204.178.31.1 ether /net.alt/ether1\\
|
|
|
|
|
204.178.31.6 255.255.255.0
|
|
|
|
|
% ndb/cs -x /net.alt -f /lib/ndb/external
|
|
|
|
|
% ndb/dns -sx /net.alt -f /lib/ndb/external
|
|
|
|
|
% aux/listen -d /rc/bin/service.alt /net.alt/tcp
|
|
|
|
|
.EE
|
|
|
|
|
.PP
|
|
|
|
|
Get all addresses via DHCP.
|
|
|
|
|
Configure the IPv6 link-local address automatically
|
|
|
|
|
and listen for router announcements.
|
|
|
|
|
.IP
|
|
|
|
|
.EX
|
|
|
|
|
ip/ipconfig -6
|
|
|
|
|
ip/ipconfig ra6 recvra 1
|
|
|
|
|
.EE
|
|
|
|
|
.SH FILES
|
|
|
|
|
.B /sys/log/v6routeradv
|
|
|
|
|
.SH SOURCE
|
|
|
|
|
.B /sys/src/cmd/ip/ipconfig
|
|
|
|
|
.br
|
|
|
|
|
.B /sys/src/cmd/ip/rip.c
|
|
|
|
|
.br
|
|
|
|
|
.B /sys/src/cmd/ip/linklocal.c
|
|
|
|
|
.br
|
|
|
|
|
.B /rc/bin/ipv6on
|
|
|
|
|
.SH "SEE ALSO"
|
|
|
|
|
.IR ether (3),
|
|
|
|
|
.IR ip (3),
|
|
|
|
|
.IR loopback (3),
|
|
|
|
|
.IR ndb (6),
|
|
|
|
|
.IR 6in4 (8),
|
|
|
|
|
.IR dhcpd (8),
|
|
|
|
|
.IR ppp (8)
|
|
|
|
|
.br
|
|
|
|
|
.B /lib/rfc/rfc2373
|
|
|
|
|
for IPv6's modified EUI-64
|
