Dynamic Host DNS Registration
Stefan Puiu
stefan.puiu at gmail.com
Fri Jul 8 10:17:59 UTC 2005
On 7/8/05, Auer, Karl James <karl.auer at id.ethz.ch> wrote:
> > The DHCP specification discusses the communication between the DHCP=3D2=
0
> > client and server. I don't think it says anything about DHCP servers=
=3D20
> > updating DNS servers. That's something many DHCP servers do,=3D20
> > but it's an add-on for integration, not part of the DHCP protocol.
>=20
> There are separate standards (still developing, I believe) covering
> exactly *how* to update DNS entries dynamically, don't have the numbers
> to hand.=20
Slightly offtopic for this list, but anyway:=20
The FQDN assignment (in the DHCP protocol) is done using DHCP Option
81 (client FQDN) AFAIR; it's specified in the draft mentioned below.
On the other hand, the DHCP-DNS interaction is specified in an ietf draft:=
=20
http://www.ietf.org/proceedings/00jul/I-D/dhc-dhcp-dns-12.txt
However, I'm not sure who implements that DHC ID RR yet - I don't
think BIND does yet.
So, in order to support dynamic DNS updates, that router would have to
support option 81, too. DHCP servers are supposed to support a minimum
subset of options, but AFAIR this one isn't one of them.
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