ICMP Router Discovery Protocol (IRDP)

NOTE

R6(config-subif)#ip irdp ?
  address            addresses to proxy-advertise
  holdtime           how long a receiver should believe the information
  maxadvertinterval  maximum time between advertisements
  minadvertinterval  minimum time between advertisements
  multicast          advertisements are sent with multicasts
  preference         preference level for this interface
  <cr>