1. IPv6 Rapid Deployment on IPv4 infrastructures (6rd)‏ http://tools.ietf.org/html/draft-despres- v6ops-6rd-ipv6-rapid-deployment-00 IETF 71 - 2008-03-11 remi.despres@free.fr

2. 2008-03-11IETF 71 - v6ops - Rémi Després2 Plan Requirements (Actual) Rapid Deployment by FREE ISPs that assign Private IPv4 Addresses CPEs belonging to customers - DHCPv4 Additional requirement ? What next ?

3. 2008-03-11IETF 71 - v6ops - Rémi Després3 Requirements ‏ RAPID DEPLOYMENT  No change to the core of IPv4 infrastructures  No new address assignment policy (v4 address ==> v6 site prefix)‏  Use only v6-v4 border gateway(s) and upgraded CPEs COMPLETENESS  IPv6 addresses MUST be as good as other native ones: guaranteed return paths (unlike 6to4)‏ SCALABILITY  v6-v4 gateways must be stateless (like 6to4)‏ EFFICIENCY  Direct IPv4 routes between ISP 6rd sites (like 6to4)‏... and KISS (Keep It Simple... Stupid‏)‏

4. 2008-03-11IETF 71 - v6ops - Rémi Després4 (Actual) Rapid Deployment by FREE Before nov 2007: "no short term need for IPv6" Nov 7 th : 6rd principles presented to FREE (French ISP)‏ Nov 7 th at night: FREE asks for an IPv6 prefix => /32 Nov 18 th : "Done!" IPv6 prefixes confidentially available Dec 4 th : Evaluation after early trials Dec 11 th : Press release - IPv6 unicast available Opt-in service to > 1 500 000 customer sites

5. 2008-03-11IETF 71 - v6ops - Rémi Després5 SITE IPv6 ACTIVATION HOST IPv6 ACTIVATION (Mac OS X Tiger)‏

6. 2008-03-11IETF 71 - v6ops - Rémi Després6 ISP _________________/\________________ / \ 6rd unchanged 6rd CPEs v4 infrastructure ISP | | relay(s)‏ | | | v6 V V V peering ___ ______________________ ___ | | | | | | | V v6 |--|-..--------------|--| |-------- |___| | \ / | |___| | \ / 6rd ISP 6rd Customer Sites| O v4 anycast ==> <= ISP prefix ___ | / \ address ___ | | | / \ | | | v6 |--|-' '--------------|--| |-------- |___| | | |___| |______________________|

7. 2008-03-11IETF 71 - v6ops - Rémi Després7 Address format PPPP:PPPP:AAAA:AAAA:IIII:IIII:IIII:IIII ISP prefix /32; Site prefix /64; No Subnet ID PPPP:PPPA:AAAA:AAAS:IIII:IIII:IIII:IIII ISP prefix /28; Site prefix /60; Subnet ID 4 bits... | | | | Subnet| | |. | | | | | | | 6rd IPv4 | | | | ISP site | | | | prefix address | | | | | | | | | | | +---//----+------------+--//--+-------------------------------+ | | 32 bits | ≥ 0 | 64 bits | | | | bits | | +---//----+------------+--//--+-------------------------------+

8. 2008-03-11IETF 71 - v6ops - Rémi Després8 Non-6rd addresses with the 6rd ISP prefix.. | | | Non-6rd tag | | (4 bits) | | | | +----//-----+-|--+-----//------+-----------------------------+ | 6rd ISP | | | Interface ID | | prefix |1110| | | +----//-----+----+-----//------+-----------------------------+ PPPP:PPPe:XXXX:SSSS:IIII:IIII:IIII:IIII ISP prefix /28; Site prefix /48; Subnet ID 16 bits One /28 ISP prefix => 2^16 /48 site prefixes + 2^23+ /60 site prefixes (FREE has > 2^23 v4 addresses) (NB: /28 ISP prefix => 2^20 /48 site prefixes)‏

9. 2008-03-11IETF 71 - v6ops - Rémi Després9 ISPs that assign private IPv4 Addresses.------------------------------. | 10.x.x.x/8 addresses | | <== | | 6rd ISP anycast address| 6rd CPEs | ==> | 6rd relays | | | : | | V | '--------------.---------------' | __|__ ISP | | IPv4 NAT |_____| | V

10. 2008-03-11IETF 71 - v6ops - Rémi Després10 CPEs belonging to customers - DHCPv4 (Hosts or routers)‏ Need for a 6rd DHCPv4 Option Code Length 6rd prefix length | | | +--|--+--|--+-----+-----+-----+-----+-----+-----+-----+-----+--|--+ |= nn | = 9 | 6rd ISP Prefix |6rd ISP anycast address| pl | +-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+ FREE equivalent: ( nn; 9; 2a01:05d8; 192.88.99.2; 32)‏

11. 2008-03-11IETF 71 - v6ops - Rémi Després11 Next steps ? Comments Other WG involved? RFC status ?

12. 2008-03-11IETF 71 - v6ops - Rémi Després12 Thank you