Provided by: iproute2_6.14.0-1ubuntu1_amd64 
      
    
NAME
       ip-sr - IPv6 Segment Routing management
SYNOPSIS
       ip sr  { COMMAND | help }
       ip sr hmac show
       ip sr hmac set KEYID ALGO
       ip sr tunsrc show
       ip sr tunsrc set ADDRESS
DESCRIPTION
       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
   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
       ip-route(8)
AUTHOR
       David Lebrun <david.lebrun@uclouvain.be>
iproute2                                           14 Apr 2017                                          IP-SR(8)