[address-policy-wg] 2008-05 Anycast for DLV zones
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Florian Weimer
fweimer at bfk.de
Wed Apr 22 13:05:14 CEST 2009
* Jim Reid: > On 22 Apr 2009, at 08:27, Florian Weimer wrote: > >> Should critical DNS infrastructure include DLV zones for public use? > > No. Absolutely not. DLV is not critical to the operation of the > Internet. And ENUM is? Which part of the Internet depends on it? > The DNS servers for TLDs, and to a lesser extent, the Tier-1 ENUM > delegations are critical. If they went away, everyone would > immediately notice that. Could you name a ENUM delegation which is critical in this sense? (This is exclusively about e164.arpa and its children, right?) > Another point: anyone can set themselves up a DLV provider. So if > arbitrary DLV operators were able to get anycast allocations, this > would be a good way of depleting the remaining IPv4 space. At least > there's a finite number of TLD and Tier-1 ENUM delegations which are > underpinned by "official" registries and procedures for obtaining/ > managing them. This is not the case for DLV providers (if I can use > that vague term). This is certainly the best argument, although it's rather discriminating. (Although the situation with TLDs will likely evolve into more general availability.) > Oh and what happens when the next flavour-of-the-month DNSSEC > validation hack comes along? Should the policy be modified to > accommodate that too?? Oh, come on, DLV is less of a hack than ENUM. At least it uses DNS for storing DNS-related data, and it's a rather good match conceptually (incremental dialing anyone?). > BTW I am also uncomfortable with attempts to shore up DLV or to make > it more permanent. I can understand that, but isn't this something beyond addressing policy? It's a bit like denying .BY an anycast prefix because you don't like the political situation over there. -- Florian Weimer <fweimer at bfk.de> BFK edv-consulting GmbH http://www.bfk.de/ Kriegsstraße 100 tel: +49-721-96201-1 D-76133 Karlsruhe fax: +49-721-96201-99
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