>>>>> "Mark" == Mark Andrews <marka@xxxxxxx> writes: Mark> In message Mark> <992DF93E-1EFB-4D68-BDD7-D5C7BE02FC01@xxxxxxxxxxxxxx>, Mark> Marshall Euba nks writes: >> Hello; >> >> I think that people here would be interested in (and likely >> concerned by) the ARIN 2010-9 proposal : >> >> https://www.arin.net/policy/proposals/2010_9.html >> >> "On 15 July 2010 the ARIN Advisory Council (AC) selected "IPv6 >> for 6rd" as a draft policy for adoption discussion on the PPML >> and at the Public Policy Meeting in Atlanta in October. >> >> IPv6 for 6rd >> >> 6rd is an incremental method for Service Providers to deploy >> IPv6, defined in the IETF Standards Track RFC 5969. 6rd has been >> used successfully by a number of service providers to deploy IPv6 >> based on automatic IPv6 prefix delegation and tunneling over >> existing IPv4 infrastructure. .... " >> >> What worries me (and others) is that to give end users an IPv6 >> /56 will generally require the assignments as short as /24s to >> ISPs, due to the encapsulation of v4 addresses inside of v6 >> addresses : >> >> "The 6rd prefix is an RIR delegated IPv6 prefix. It must >> encapsulate an IPv4 address and must be short enough so that a >> /56 or /60 can be given to subscribers." >> >> 56 - 32 = a /24 Mark> Only a naive deployment of 6rd would do this. Mark> If you deploy a 6rd prefix per IPv4 prefix you have allocated Mark> and set appropriate IPv4 mask lengths in your DHCP replies to I tried to raise this point in April at the ARIN meeting, but it wasn't understood. -- ] He who is tired of Weird Al is tired of life! | firewalls [ ] Michael Richardson, Sandelman Software Works, Ottawa, ON |net architect[ ] mcr@xxxxxxxxxxxxxxxxxxxxxx http://www.sandelman.ottawa.on.ca/ |device driver[ Kyoto Plus: watch the video <http://www.youtube.com/watch?v=kzx1ycLXQSE> then sign the petition. _______________________________________________ Ietf mailing list Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf