Does BIND9 support broadcast/multicast query?

[Hideshi Enokihara]

Thank you for your reply.

On Mon, 26 Dec 2005 09:58:54 -0800 (PST)
Gregory Hicks <ghicks at cadence.com> wrote:

> 
> > Date: Mon, 26 Dec 2005 19:30:23 +0900
> > From: Hideshi Enokihara <Hideshi.Enokihara at jp.yokogawa.com>
> > To: bind-users at isc.org
> > Subject: Does BIND9  support broadcast/multicast query?
> > 
> > Hi all,
> > 
> > I have a simple question for BIND9.
> > 
> > Does BIND9 support a UDP query that is delivered using an IP
> > broadcast or multicast address?
> 
> broadcast/multicast is handled by the router long before the request
> ever reaches the server.  As far as the SERVER is concerned, it just
> sees a request and processes normally.

I see.
But RFC1123 says,

            A server MAY support a UDP query that is delivered using an
            IP broadcast or multicast address.  However, the Recursion
            Desired bit MUST NOT be set in a query that is multicast,
            and MUST be ignored by name servers receiving queries via a
            broadcast or multicast address. 

So, I think that sarver may support a broadcast or multicast query, Not router.
How do you think?

Best Regards,

> > 
> > Please teach me.
> > 
> > Best Regards,
> > -- 
> > *************************************
> > Hideshi Enokihara
> > IPv6 Business
> > Network & Software Development Dept.
> > Yokogawa Electric Corporation
> > 
> > 
> 
> ---------------------------------------------------------------------
> Gregory Hicks                           | Principal Systems Engineer
> Cadence Design Systems                  | Direct:   408.576.3609
> 555 River Oaks Pkwy M/S 6B1             | Fax:      408.894.3479
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> 
> I am perfectly capable of learning from my mistakes.  I will surely
> learn a great deal today.
> 
> "A democracy is a sheep and two wolves deciding on what to have for
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> 
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> 


-- 
*************************************
Hideshi Enokihara
IPv6 Business
Network & Software Development Dept.
Yokogawa Electric Corporation