IPv6 Tutorial G6

Goiffon

Sujets

• Tutoriel
• RFC Houdinois
• Liste des personnages d'Astérix le Gaulois
• Réseau national de télécommunications pour la technologie, l'enseignement et la recherche
• IPsec
• Protocole opératoire

Informations

• Publié par: Otti
• Nombre de lectures: 132
• Langue: English
• Poids de l'ouvrage: 3 Mo

Extrait

IPv6 Tutorial G6 Last m odified by: [e-mail] on 8 Feb. 2004 Contributions Main authors – Lau rent Tout ain, ENST-Bretagn e – I RISA, Fran ce – B erna rd T u y, Renat er, Fra n ce Contributor s – O ctavio Me dina, ENST-Bretagn e, F r an ce – M oh sen S o u issi, A F NI C, F r an ce – V incent L e vigneron, AFNIC, Fra n ce – T homa s Noel, LSIIT, Fran ce – A lain Durand , Sun Micro s y s te ms, USA – A lain Baudot, Fran ce Telecom R&D, F r a n ce – B ill Manning, ISI, USA – D av id K e ss e n s, Qw est , U S A – P ierre -Emm a nuel G o iffon, Renat er, Fra n ce – J ér ôme D uran d , R e n a t er , F r a n c e G6 T u to rial 2 Agenda Why a new version for IP? IPv6 Protocol Address formats, addressing architecture Protocols associated to IPv6 IPv6 support in the DNS (DNSv 6 ) IPv6 Mobility IPv6 Security with IPsec Early experiences and deployments IPv6 and OS/applic ations IPv4 / IPv6 integration Equipm ent Configuration Co nclus i o n G6 T u to rial 3Why a new version for IP ? G6 T u to rial 4 Historical facts 1983 : Research network for ~ 100 computers 1992 : Commercial activity Exponential growth 1993 : Exhaustion of the class B address space Forecast of network collapse for 1994! G6 T u to rial 5IPv4 address space consumption G6 T u to rial 6IPv4 address space consumption /2 G6 T u to rial 7 Emergency measures Allocate exceptionally class B addresses Re-use class C address space CIDR ( Classless Internet Domain Routing ) – R FC 151 9 (PS) – network address = prefix/prefix length – l ess address waste – r ecommend aggregation (reduce routing tab l e length) G6 T u to rial 8 Emergency Measures: Private Addresses (RFC 1918 BCP) Allow private addressing plans Addresses are used internally Similar to security architecture with firewall Use of proxies or NAT to go outside – R FC 1631, 2663 and 2993 NAPT is the most commonly used of NAT variations G6 T u to rial 9Emergency Measures (continued) Public address space Private address spac e Internet Company G6 Tu to rial 10