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Securing the Network in Oracle® Solaris 11.3

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Updated: September 2018
 
 

How to Disable Broadcast Packet Forwarding

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.


Note - When you disable the _forward_directed_broadcasts network property, you are disabling broadcast pings.

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 11.3.

  1. Set the broadcast packet forwarding property to 0 for IP packets.
    # ipadm set-prop -p _forward_directed_broadcasts=0 ip
  2. Verify the current value.
    # ipadm show-prop -p _forward_directed_broadcasts ip
    PROTO  PROPERTY                     PERM CURRENT   PERSISTENT   DEFAULT   POSSIBLE
    ip    _forward_directed_broadcasts  rw   0         --           0         0,1

See Also

ipadm(1M) man page