[190329] in North American Network Operators' Group
Re: Quick question regarding: Problematic IPv6 Multicast traffic
daemon@ATHENA.MIT.EDU (joel jaeggli)
Fri Jun 24 13:31:14 2016
X-Original-To: nanog@nanog.org
To: Bob Evans <bob@FiberInternetCenter.com>, NANOG list <nanog@nanog.org>
From: joel jaeggli <joelja@bogus.com>
Date: Fri, 24 Jun 2016 10:31:06 -0700
In-Reply-To: <90f40c0a2e1c274032f10a66281d4dc5.squirrel@66.201.44.180>
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From: joel jaeggli <joelja@bogus.com>
To: Bob Evans <bob@FiberInternetCenter.com>, NANOG list <nanog@nanog.org>
Message-ID: <acb7c871-5493-efbf-c7df-c72e4291592e@bogus.com>
Subject: Re: Quick question regarding: Problematic IPv6 Multicast traffic
within an IX.
References: <90f40c0a2e1c274032f10a66281d4dc5.squirrel@66.201.44.180>
In-Reply-To: <90f40c0a2e1c274032f10a66281d4dc5.squirrel@66.201.44.180>
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On 6/24/16 9:27 AM, Bob Evans wrote:
>=20
> Is it true that managed Layer2 switches used by IX's can not block IPv6=
> multicast ingress port traffic from broadcasting to all ports ?
you can filter multicast destination addresses by acl.
NDP you kinda need since it replaces ARP
RA's you can and should filter (icmp6 type 134)
> ___Yes , seen many IXs with IPv6 multicast continuing yet IPv4 multicas=
t
> is blocked.
>=20
> ___No , All should be able to bock IPv6 multicast.
>=20
> ___Only a few specific managed switch manufacturers have this issue wit=
h
> IPv6 multicast broadcasting.
>=20
> You're knowledge on this problem would be helpful.
>=20
> Thank You in advance.
>=20
> Bob Evans
> CTO
>=20
>=20
>=20
>=20
>=20
>=20
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