NFD

This task is to define and realize two configuration options to make all UDP multicast faces and Ethernet multicast faces "ad hoc".

face_system
{
  ...
  udp
  {
    ...
    ; Make all UDP multicast faces "ad hoc" (disabled by default)
    ; mcast_ad_hoc yes
  }

  ...

  ether
  {
    ...
    ; Make all Ethernet multicast faces "ad hoc" (disabled by default)
    mcast_ad_hoc yes
  }

  ...
}

This is a "temporary" solution before a dynamic detection of face type is available (#3967) and for platforms that do not provide ability to detect type (or we didn't implement that).