-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 07/20/2011 12:13 PM, Marc Manthey wrote: > > On Jul 20, 2011, at 4:16 PM, > [email protected] > <mailto:[email protected]> wrote: > >> On Tue, Jul 19, 2011 at 1:44 AM, Marc Manthey - [email protected] >> <mailto:[email protected]> wrote: >>> <snip> >>> So why we need all this NAT /SIP/STUN / punching stuff ? >>> >> >> Then, how long has it taken major implementers, large Internet Service >> Providers (ISPs), large network companies, and national governments, >> to buy IPv6 equipment and place it into service? > > > In france one of the biggest ISPs (free.fr ) offers ipv6 for every customer > without any extra charge since years. http://ipv6pourtous.free.fr/rani/ > > Comcast has released source-code for the next-generation of IPv6 enabled home > gateway device (a.k.a. home router). > This IPv6 solution is based on the OpenWrt platform. > > www.comcast6.net/ <http://www.comcast6.net/> > > http://sourceforge.net/p/dslite-6rd/home/ > > > So i predict everyone has ipv6 before 2012 ends , so why we need ICE/SIP and > STUN in ipv6 when we have end-to end connectivity ? > http://en.wikipedia.org/wiki/End-to-end_principle
There is multiple reasons. The first one is that IPv4 will never disappear, so there is a need for a mechanism that can select a route that works between two endpoints, which is what ICE is doing. Note that ICE is *not* a mechanism to traverse NAT, as a lot of people think, but a framework to manage various connection methods, which can be NAT traversal methods, IP versions (i.e. between IPv4 and IPv6), interfaces (in case of a multi-home endpoint), etc... Another reason is that IPv6 unfortunately does not signal the end of NAT. One reason is to be able to renumber networks without changing the IP address of the endpoint. There is some effort at the IETF to find a solution to this problem without a NAT, but it is probably already too late. Another reason is that some people think that a NAT adds security to a network. People like to believe that there is simple solutions to complex problems, and NAT is one of these. So even without the renumbering problem, people will continue to buy this particular snake oil after IPv6. You can't fix stupid. For all these reasons, we will have to live with ICE for a very, very long time. - -- Marc Petit-Huguenin Personal email: [email protected] Professional email: [email protected] Blog: http://blog.marc.petit-huguenin.org -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iEYEARECAAYFAk4nLloACgkQ9RoMZyVa61fZcwCfUom4TtbgmMti+3mNG4c5cNo/ LuMAoKB7t89G0ZDnDc1SieVWCM0tmIO9 =O3xO -----END PGP SIGNATURE----- _______________________________________________ Freedombox-discuss mailing list [email protected] http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/freedombox-discuss
