Premièrement sur la compatibilité IPv4/IPv6, ça aurait été trop dur dans la norme IPv6 de dire que les 2^32 adresses possibles sont en fait IPv4 ??? (ou un autre préfixe)
Hum, comment dire...
C'est presque le cas...
Je cite Wikipedia :
Hybrid dual-stack IPv6/IPv4 implementations support a special class of addresses, the IPv4-mapped IPv6 addresses. This address type has its first 80 bits set to zero and the next 16 set to one, while its last 32 bits are filled with the IPv4 address. These addresses are commonly represented in the standard IPv6 format, but having the last 32 bits written in the customary dot-decimal notation of IPv4; for example, ::ffff:192.0.2.128 represents the IPv4 address 192.0.2.128.
[^] # Re: Questions naïves
Posté par Pinaraf . En réponse à la dépêche IPv4 est mort, vive IPv6 !. Évalué à 3.
Hum, comment dire...
C'est presque le cas...
Je cite Wikipedia :
Hybrid dual-stack IPv6/IPv4 implementations support a special class of addresses, the IPv4-mapped IPv6 addresses. This address type has its first 80 bits set to zero and the next 16 set to one, while its last 32 bits are filled with the IPv4 address. These addresses are commonly represented in the standard IPv6 format, but having the last 32 bits written in the customary dot-decimal notation of IPv4; for example, ::ffff:192.0.2.128 represents the IPv4 address 192.0.2.128.