ip-sr(8) — Linux manual page


IP-SR(8)                          Linux                         IP-SR(8)

NAME         top

       ip-sr - IPv6 Segment Routing management

SYNOPSIS         top

       ip sr  { COMMAND | help }

       ip sr hmac show

       ip sr hmac set KEYID ALGO

       ip sr tunsrc show

       ip sr tunsrc set ADDRESS

DESCRIPTION         top

       The ip sr command is used to configure IPv6 Segment Routing
       (SRv6) internal parameters.

       Those parameters include the mapping between an HMAC key ID and
       its associated hashing algorithm and secret, and the IPv6 address
       to use as source for encapsulated packets.

       The ip sr hmac set command prompts for a passphrase that will be
       used as the HMAC secret for the corresponding key ID. A blank
       passphrase removes the mapping.  The currently supported
       algorithms for ALGO are sha1 and sha256.

       If the tunnel source is set to the address :: (which is the
       default), then an address of the egress interface will be
       selected. As this operation may hinder performances, it is
       recommended to set a non-default address.

EXAMPLES         top

   Configure an HMAC mapping for key ID 42 and hashing algorithm SHA-256

       # ip sr hmac set 42 sha256

   Set the tunnel source address to 2001:db8::1
       # ip sr tunsrc set 2001:db8::1

SEE ALSO         top


AUTHOR         top

       David Lebrun <david.lebrun@uclouvain.be>

COLOPHON         top

       This page is part of the iproute2 (utilities for controlling
       TCP/IP networking and traffic) project.  Information about the
       project can be found at 
       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
       2024-06-14.  (At that time, the date of the most recent commit
       that was found in the repository was 2024-06-11.)  If you
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       information in this COLOPHON (which is not part of the original
       manual page), send a mail to man-pages@man7.org

iproute2                       14 Apr 2017                      IP-SR(8)

Pages that refer to this page: ip(8)ip-route(8)