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From: "Linus Lüssing" <linus.luessing@c0d3.blue>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: netdev@vger.kernel.org, bridge@lists.linux-foundation.org,
	linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org,
	Michael Braun <michael-dev@fami-braun.de>,
	"David S . Miller" <davem@davemloft.net>,
	Felix Fietkau <nbd@nbd.name>
Subject: Re: [PATCH net-next] bridge: multicast to unicast
Date: Mon, 9 Jan 2017 13:42:31 +0100	[thread overview]
Message-ID: <20170109124231.GA9086@otheros> (raw)
In-Reply-To: <1483949149.17582.1.camel@sipsolutions.net>

On Mon, Jan 09, 2017 at 09:05:49AM +0100, Johannes Berg wrote:
> On Sat, 2017-01-07 at 16:15 +0100, Linus Lüssing wrote:
> 
> > Actually, I do not quite understand that remark in the mac80211
> > multicast-to-unicast patch. IP should not care about the ethernet
> > header?
> 
> But it does, for example RFC 1122 states:
> 
>          When a host sends a datagram to a link-layer broadcast address,
>          the IP destination address MUST be a legal IP broadcast or IP
>          multicast address.
> 
>          A host SHOULD silently discard a datagram that is received via
>          a link-layer broadcast (see Section 2.4) but does not specify
>          an IP multicast or broadcast destination address.

This example is the other way round. It specifies how the IP
destination should look like in case of link-layer broadcast. Not
how the link-layer destination should look like in case of a
multicast/broadcast IP destination.

Any other examples?

  reply	other threads:[~2017-01-09 12:42 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-02 19:32 [PATCH net-next] bridge: multicast to unicast Linus Lüssing
2017-01-03 11:58 ` Nikolay Aleksandrov via Bridge
2017-01-03 13:15 ` Felix Fietkau
2017-01-06 12:47 ` Johannes Berg
2017-01-06 13:52   ` Felix Fietkau
2017-01-06 13:54     ` Johannes Berg
2017-01-06 13:54       ` Felix Fietkau
2017-01-07 10:32       ` M. Braun
2017-01-07 14:55         ` Linus Lüssing
2017-01-09  8:08           ` Johannes Berg
2017-01-09 11:44             ` M. Braun
2017-01-09 12:15               ` Johannes Berg
2017-01-09 15:25                 ` michael-dev
2017-01-09 15:47                   ` Johannes Berg
2017-01-09 21:23               ` Linus Lüssing
2017-01-09 21:30                 ` Stephen Hemminger
2017-01-10  4:18                   ` Linus Lüssing
2017-01-10 10:56                     ` Johannes Berg
2017-01-10 17:17                       ` Dave Taht
2017-01-10 17:23                         ` Felix Fietkau
2017-01-10 18:24                           ` Dave Taht
2017-01-10 21:27                       ` Felix Fietkau
2017-01-11 11:26                         ` IgorMitsyanko
2017-01-11 11:30                           ` Felix Fietkau
2017-01-11 12:15                             ` IgorMitsyanko
2017-01-11 12:21                               ` Felix Fietkau
2017-01-07 15:15   ` Linus Lüssing
2017-01-09  8:05     ` Johannes Berg
2017-01-09 12:42       ` Linus Lüssing [this message]
2017-01-09 12:44         ` Johannes Berg
2017-01-09 23:12           ` Linus Lüssing
2017-01-11  9:17             ` Johannes Berg
2017-01-07  3:13 ` Stephen Hemminger
2017-01-07 15:06   ` Linus Lüssing
2017-01-09  8:36   ` Jean-Pierre Tosoni

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