Brevet US7072338 - Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 ...

INQUIRY OF IP ADDRESS CORRESPONDING TO DOMAIN
NAME OF IPv6 TERMINAL 5 (MESSAGE A)

NOTIFY OF IPv4 ADDRESS ALLOCATED TEMPORARILY TO DOMAIN NAME OF IPv6 TERMINAL5 (MESSAGE E)

T

IPv4
TERMINAL2

DHCPv4
SERVE R4

DNSv4
SERVERS

IPv4-IPv6
CONVERTING
APPARATUS!
TRANSMIT IPv4 PACKET TO IPv4 ADDRESS
ALLOCATED TEMPORARILY TO DOMAIN NAME
OF IPv6 TERMINAL 5

DNSv6
SERVERS

DHCPv6
SERVER

IPv6
TERMINALS

IPv4 TERMINAL2

-I

DHCPv4 SERVER4

DNSv4 IPv4—IPv6 DNSv6 DHCPv6 IPv6
SERVER3 CONVERTING SERVER6 SERVER7 TERMINAL5
APPARATUS1

INQUIRY OF IP ADDRESS CORRESPONDING TO DOMAIN
NAME OF IPv4 TERMINAL 2 (MESSAGE K)

NOTIFY OF "IPv4 -MAPPED IPv6 ADDRESS" IN WHCIH IPv4

ADDRESS OF IPv4 TERMINAL 2 HAS BEEN SET (MESSAGE P)

1 , FIG. 7

COMMUNICATE IN ACCORDANCE COMMUNICATE IN ACCORDANCE WITH IPv4 PROTOCOL I WITH IPv6 PROTOCOL

IPv4 DHCPv4 DNSv4 IPv4—IPv6 DNSv6 DHCPv6 IPv6

TERMINAI 9 QPCV/CD/l QPRV/CDQ mM\/CDTIM/_ ocnwcnp or-rv* ,--.-> -r-r-r-x. ......

APPARATUSI

Brevets