[116152] in North American Network Operators' Group
Blocking IPv6 broadcast
daemon@ATHENA.MIT.EDU (Sharef Mustafa)
Thu Jul 23 05:49:21 2009
Date: Thu, 23 Jul 2009 12:48:51 +0300
From: "Sharef Mustafa" <sharef.mustafa@paltel.net>
To: <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Hi,
=20
I have a customer connected to my Cisco 3560 switch via Gigabit
Ethernet, recently I noticed that he is broadcasting IPv6 packets
such as LLMNR, DHCPv6 and ICMPv6 it seems that the customer is
connecting a Vista machine that has some IPv6 services enabled=20
(some IPv6 services are enabled by default on Vista)
=20
How can I block such broadcast from entering my network?
By the way there is no firewall in this setup, just a switch to switch.
=20
BR
=20
Sharef
