x SuSE Linux 13.1-RELEASE x
x SuSE Linux 13.1-RELEASEx
IP-ADDRESS(8) Linux IP-ADDRESS(8)
NAME
ip-address - protocol address management
SYNOPSIS
ip [ OPTIONS ] address { COMMAND | help }
ip address { add | del } IFADDR dev STRING
ip address { show | flush } [ dev STRING ] [ scope SCOPE-ID ] [ to PRE-
FIX ] [ FLAG-LIST ] [ label PATTERN ]
IFADDR := PREFIX | ADDR peer PREFIX [ broadcast ADDR ] [ anycast ADDR ]
[ label STRING ] [ scope SCOPE-ID ]
SCOPE-ID := [ host | link | global | NUMBER ]
FLAG-LIST := [ FLAG-LIST ] FLAG
FLAG := [ permanent | dynamic | secondary | primary | tentative | dep-
recated | dadfailed | temporary ]
DESCRIPTION
The address is a protocol (IP or IPv6) address attached to a network
device. Each device must have at least one address to use the corre-
sponding protocol. It is possible to have several different addresses
attached to one device. These addresses are not discriminated, so that
the term alias is not quite appropriate for them and we do not use it
in this document.
The ip address command displays addresses and their properties, adds
new addresses and deletes old ones.
ip address add - add new protocol address.
dev NAME
the name of the device to add the address to.
local ADDRESS (default)
the address of the interface. The format of the address depends
on the protocol. It is a dotted quad for IP and a sequence of
hexadecimal halfwords separated by colons for IPv6. The ADDRESS
may be followed by a slash and a decimal number which encodes
the network prefix length.
peer ADDRESS
the address of the remote endpoint for pointopoint interfaces.
Again, the ADDRESS may be followed by a slash and a decimal num-
ber, encoding the network prefix length. If a peer address is
specified, the local address cannot have a prefix length. The
network prefix is associated with the peer rather than with the
local address.
broadcast ADDRESS
the broadcast address on the interface.
It is possible to use the special symbols '+' and '-' instead of
the broadcast address. In this case, the broadcast address is
derived by setting/resetting the host bits of the interface pre-
fix.
label NAME
Each address may be tagged with a label string. In order to
preserve compatibility with Linux-2.0 net aliases, this string
must coincide with the name of the device or must be prefixed
with the device name followed by colon.
scope SCOPE_VALUE
the scope of the area where this address is valid. The avail-
able scopes are listed in file /etc/iproute2/rt_scopes. Prede-
fined scope values are:
global - the address is globally valid.
site - (IPv6 only) the address is site local, i.e. it is
valid inside this site.
link - the address is link local, i.e. it is valid only
on this device.
host - the address is valid only inside this host.
ip address delete - delete protocol address
Arguments: coincide with the arguments of ip addr add. The device name
is a required argument. The rest are optional. If no arguments are
given, the first address is deleted.
ip address show - look at protocol addresses
dev NAME (default)
name of device.
scope SCOPE_VAL
only list addresses with this scope.
to PREFIX
only list addresses matching this prefix.
label PATTERN
only list addresses with labels matching the PATTERN. PATTERN
is a usual shell style pattern.
up only list running interfaces.
dynamic and permanent
(IPv6 only) only list addresses installed due to stateless
address configuration or only list permanent (not dynamic)
addresses.
tentative
(IPv6 only) only list addresses which have not yet passed dupli-
cate address detection.
deprecated
(IPv6 only) only list deprecated addresses.
dadfailed
(IPv6 only) only list addresses which have failed duplicate
address detection.
temporary
(IPv6 only) only list temporary addresses.
primary and secondary
only list primary (or secondary) addresses.
ip address flush - flush protocol addresses
This command flushes the protocol addresses selected by some criteria.
This command has the same arguments as show. The difference is that it
does not run when no arguments are given.
Warning: This command (and other flush commands described below) is
pretty dangerous. If you make a mistake, it will not forgive it, but
will cruelly purge all the addresses.
With the -statistics option, the command becomes verbose. It prints out
the number of deleted addresses and the number of rounds made to flush
the address list. If this option is given twice, ip address flush also
dumps all the deleted addresses in the format described in the previous
subsection.
EXAMPLES
ip address show dev eth0
Shows the addresses assigned to network interface eth0
ip addr add 2001:0db8:85a3::0370:7334/64 dev eth1
Adds an IPv6 address to network interface eth1
ip addr flush dev eth4
Removes all addresses from device eth4
SEE ALSO
ip(8)
AUTHOR
Original Manpage by Michail Litvak <mci@owl.openwall.com>
iproute2 20 Dec 2011 IP-ADDRESS(8)
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