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Date:   Tue, 10 Mar 2020 17:01:33 +0100
From:   Guillaume Nault <>
To:     Alexander Duyck <>
Cc:     David Ahern <>, Xin Long <>,
        network dev <>,
        davem <>,,
        "" <>
Subject: Re: route: an issue caused by local and main table's merge

On Tue, Mar 10, 2020 at 04:56:32PM +0100, Guillaume Nault wrote:
> On Mon, Mar 09, 2020 at 08:53:53AM -0700, Alexander Duyck wrote:
> > Also, is it really a valid configuration to have the same address
> > configured as both a broadcast and unicast address? I couldn't find
> > anything that said it wasn't, but at the same time I haven't found
> > anything saying it is an acceptable practice to configure an IP
> > address as both a broadcast and unicast destination. Everything I saw
> > seemed to imply that a subnet should be at least a /30 to guarantee a
> > pair of IPs and support for broadcast addresses with all 1's and 0 for
> > the host identifier. As such would never really be a
> > valid broadcast address since it implies a /31 subnet mask.
> > 
> RFC 3031 explicitly allows /31 subnets for point to point links.
That RFC 3021, sorry :/

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