On a related issue to link locals in URI's, we don't currently have
a good method of supporting link locals in the DNS. Sure we can
add them as AAAA records but they are essentially useless as the
scope information is lost. People keep saying use LL for disconnected
but it just doesn't work without more support.
Mark
DNS
host.example.net. SAAAA FE80::1 link.example.net.
host.example.net. SAAAA 2001:DB8::1 . ; "." indicates global scope
host.example.net. SAAAA ::ffff:198.51.100.0 . ; "." indicates global scope
host.example.net. AAAA 2001:DB8::1
host.example.net. A 198.51.100.1
RA LINK-NAME link.example.net
DHCP LINK-NAME link.example.net
getaddrinfo()
AI_FILTERED filter scoped addresses which don't match a local scope name.
Set in AI_DEFAULT.
If you get a response to a SAAAA lookup you don't need to do a A/AAAA lookup
as it is a superset of A and AAAA.
host.example.net SAAAA :: . indicates a machine that exist but is off net
--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: [email protected]
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