By default, Oracle Solaris forwards broadcast packets. If your site security policy requires you to reduce the possibility of broadcast flooding, change the default by using this procedure.
Before You Begin
You must become an administrator who is assigned the Network Management rights profile. For more information, see Using Your Assigned Administrative Rights in Securing Users and Processes in Oracle Solaris 11.4.
# ipadm set-prop -p _forward_directed_broadcasts=0 ip
# ipadm show-prop -p _forward_directed_broadcasts ip PROTO PROPERTY PERM CURRENT PERSISTENT DEFAULT POSSIBLE ip _forward_directed_broadcasts rw 0 -- 0 0,1
ipadm(8) man page