Mark this is in part, what we are planning on doing. However, what we want to make sure we had was standards reference(s) that we could point implementers to. Also note this case only pertains to DNS queries that are directed at the LAN of the CPE router i.e. 10.0.0.1. There are other use cases that we thought would be valuable to enumerate, including cases where hosts are configured with a publicly routable IPv4 DNS server address or DNS servers that are in the customer’s premises that are dual stacked. In the later cases assigning only a DNS server IPv6 address would have no impact.
John +1-484-962-0060 -----Original Message----- From: Mark Andrews <[email protected]> Date: Tuesday, November 3, 2015 at 14:37 Cc: John Jason Brzozowski <[email protected]>, Brian Haberman <[email protected]>, "[email protected]" <[email protected]>, Joel Jaeggli <[email protected]>, Fred Baker <[email protected]>, "[email protected]" <[email protected]>, Paul Ebersman <[email protected]>, "[email protected]" <[email protected]> Subject: Re: [DNSOP] New Version Notification for draft-jjmb-sunset4-dns-forwarding-ipv4aas-00.txt > >Also perhaps we should be looking at RFC3901bis. Alain, Johan are you >interested? > >Mark > >In message <[email protected]>, Mark Andrews >writes: >> >> The simplest way to force this is for the ISP to only supply IPv6 >> recursive recursive servers to the CPE where 464XLAT / MAP* / DS-Lite >> is in use. Also if a DUID is presented over DHCPv4 (RFC 4361) don't >> return nameservers. The CPE device should be getting nameservers >> via RA/DHCPv6 in this case. >> >> The CPE at this point can only advertise it's own addresses IPv4 >> address or manually configured addresses. >> >> Iterative servers should prefer IPv6. >> >> Mark >> -- >> Mark Andrews, ISC >> 1 Seymour St., Dundas Valley, NSW 2117, Australia >> PHONE: +61 2 9871 4742 INTERNET: [email protected] >> >> _______________________________________________ >> DNSOP mailing list >> [email protected] >> https://www.ietf.org/mailman/listinfo/dnsop >-- >Mark Andrews, ISC >1 Seymour St., Dundas Valley, NSW 2117, Australia >PHONE: +61 2 9871 4742 INTERNET: [email protected] > _______________________________________________ DNSOP mailing list [email protected] https://www.ietf.org/mailman/listinfo/dnsop
