Does BIND9 support broadcast/multicast query?
Hideshi Enokihara
Hideshi.Enokihara at jp.yokogawa.com
Tue Dec 27 05:30:32 UTC 2005
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
> San Jose, CA 95134 | Internet: ghicks at cadence.com
>
> 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
> lunch. Freedom is a well armed sheep contesting the results of the
> decision." - Benjamin Franklin
>
> "The best we can hope for concerning the people at large is that they
> be properly armed." --Alexander Hamilton
>
--
*************************************
Hideshi Enokihara
IPv6 Business
Network & Software Development Dept.
Yokogawa Electric Corporation
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