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NAME | SYNOPSIS | DESCRIPTION | EXAMPLES | NOTES | SEE ALSO | AUTHOR | COLOPHON |
IP-MACSEC(8) Linux IP-MACSEC(8)
ip-macsec - MACsec device configuration
ip link add link DEVICE name NAME type macsec [ [ address <lladdr> ]
port PORT | sci <u64> ] [ cipher { default | gcm-aes-128 | gcm-
aes-256"}][" icvlen ICVLEN ] [ encrypt { on | off } ] [ send_sci { on
| off } ] [ end_station { on | off } ] [ scb { on | off } ] [ protect
{ on | off } ] [ replay { on | off } ] [ window WINDOW ] [ validate {
strict | check | disabled } ] [ encodingsa SA ] [ offload { off | phy
| mac } ]
ip macsec add DEV tx sa { 0..3 } [ OPTS ] key ID KEY
ip macsec set DEV tx sa { 0..3 } [ OPTS ]
ip macsec del DEV tx sa { 0..3 }
ip macsec add DEV rx SCI [ on | off ]
ip macsec set DEV rx SCI [ on | off ]
ip macsec del DEV rx SCI
ip macsec add DEV rx SCI sa { 0..3 } [ OPTS ] key ID KEY
ip macsec set DEV rx SCI sa { 0..3 } [ OPTS ]
ip macsec del DEV rx SCI sa { 0..3 }
ip macsec offload DEV { off | phy | mac }
ip macsec show [ DEV ]
OPTS := [ pn { 1..2^32-1 } ] [ on | off ]
SCI := { sci <u64> | port PORT address <lladdr> }
PORT := { 1..2^16-1 }
The ip macsec commands are used to configure transmit secure
associations and receive secure channels and their secure
associations on a MACsec device created with the ip link add command
using the macsec type.
Create a MACsec device on link eth0 (offload is disabled by default)
# ip link add link eth0 macsec0 type macsec port 11 encrypt on
Configure a secure association on that device
# ip macsec add macsec0 tx sa 0 pn 1024 on key 01 81818181818181818181818181818181
Configure a receive channel
# ip macsec add macsec0 rx port 1234 address c6:19:52:8f:e6:a0
Configure a receive association
# ip macsec add macsec0 rx port 1234 address c6:19:52:8f:e6:a0 sa 0 pn 1 on key 00 82828282828282828282828282828282
Display MACsec configuration
# ip macsec show
Configure offloading on an interface
# ip macsec offload macsec0 phy
Configure offloading upon MACsec device creation
# ip link add link eth0 macsec0 type macsec port 11 encrypt on offload mac
This tool can be used to configure the 802.1AE keys of the interface.
Note that 802.1AE uses GCM-AES with a initialization vector (IV)
derived from the packet number. The same key must not be used with
the same IV more than once. Instead, keys must be frequently
regenerated and distibuted. This tool is thus mostly for debugging
and testing, or in combination with a user-space application that
reconfigures the keys. It is wrong to just configure the keys
statically and assume them to work indefinitely. The suggested and
standardized way for key management is 802.1X-2010, which is
implemented by wpa_supplicant.
ip-link(8) wpa_supplicant(8)
Sabrina Dubroca <sd@queasysnail.net>
This page is part of the iproute2 (utilities for controlling TCP/IP
networking and traffic) project. Information about the project can
be found at
⟨http://www.linuxfoundation.org/collaborate/workgroups/networking/iproute2⟩.
If you have a bug report for this manual page, send it to
netdev@vger.kernel.org, shemminger@osdl.org. This page was obtained
from the project's upstream Git repository
⟨https://git.kernel.org/pub/scm/network/iproute2/iproute2.git⟩ on
2020-08-13. (At that time, the date of the most recent commit that
was found in the repository was 2020-06-24.) If you discover any
rendering problems in this HTML version of the page, or you believe
there is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
iproute 07 Mar 2016 IP-MACSEC(8)