Why are you trying to use the SRAA for DNS resolution? SRAA has a
special meaning to network-infrastructure devices; I don't think it was
ever intended for anycasting general network services. Just pick one of
your global-unicast address, and anycast that instead.
There was an old Internet-Draft specifying common *site-local* addresses
for DNS resolvers, but that draft expired many years ago, and since
site-local itself has been deprecated, could be considered doubly
obsolete. (Although I still see those fec0:* addresses appended to the
resolver list on a Windows XP PC with IPv6 enabled).
Note that RFC 4291 obsoletes RFC 3513 which obsoletes RFC 2373.
- Kevin
On 9/7/2011 10:48 AM, François-Xavier Le Bail wrote:
Hello,
I send with DiG 9.7.3 a request to a router/DNS forwarder with the
Subnet-Router anycast address of the router (SRAA, RFC 2373, § 2.6.1).
The answer is :
reply from unexpected source:<GUA of the router>#53, expected<SRAA>#53
Is there an option to relax the IPv6 address request/reply control for this use
case ?
Best regards,
François-Xavier Le Bail
-----Message d'origine-----
De : LE BAIL Francois-Xavier RD-RESA-LAN
Envoyé : mercredi 7 septembre 2011 16:29
À : LE BAIL Francois-Xavier RD-RESA-LAN
Objet : DiG& subnet-anycast router address
DiG 9.7.3
;; reply from unexpected source: 2001:1:1:100:209:a9ff:fe13:1500#53, expected
2001:1:1:100::#53
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