IP\-MACSEC

Section: Linux (8)
Updated: 07 Mar 2016
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NAME

ip-macsec - MACsec device configuration  

SYNOPSIS

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 ]

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 show [ DEV ]

OPTS := [ pn { 1..2^32-1 } ] [ on | off ]
SCI := { sci <u64> | port PORT address <lladdr> }
PORT := { 1..2^16-1 }

 

DESCRIPTION

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.

 

EXAMPLES

 

Create a MACsec device on link eth0

# 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

 

NOTES

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.

 

SEE ALSO


ip-link(8) wpa_supplicant(8)  

AUTHOR

Sabrina Dubroca <sd@queasysnail.net>


 

Index

NAME
SYNOPSIS
DESCRIPTION
EXAMPLES
Create a MACsec device on link eth0
Configure a secure association on that device
Configure a receive channel
Configure a receive association
Display MACsec configuration
NOTES
SEE ALSO
AUTHOR
LinuxReviews : manual page archive : man8