Defined in 2 files as a macro:

• sys/net/if_var.h, line 648 (as a macro)
• sys/net/if_var.h, line 650 (as a macro)

Referenced in 3 files:

• sys/net/if.c
  • line 3604
  • line 3665
• sys/netinet/in_mcast.c
  • line 278
  • line 289
• sys/netinet6/in6_mcast.c
  • line 575
  • line 586