HP 6120XG HP ProCurve Series 6120 Blade Switches IPv6 Configuration Guide - Page 27
Migrating to IPv6, Dual-Stack ProCurve Switches Employed in an IPv4/IPv6 Network
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Note Introduction to IPv6 Migrating to IPv6 Migrating to IPv6 To successfully migrate to IPv6 involves maintaining compatibility with the large installed base of IPv4 hosts and routers for the immediate future. To achieve this purpose, the software supports dual-stack (IPv4/IPv6) operation and connections to IPv6-aware routers for routing IPv6 traffic between VLANs and across IPv4 networks. The software supports traffic connections with IPv6-aware routers, but does not support IPv6 routing operation in the switches covered by this guide. The switches covered by this guide support the following IPv6 protocol operations: ■ receiving IPv6 traffic addressed to the switch ■ transmitting IPv6 traffic originating on the switch ■ switching IPv6 traffic between IPv6 devices connected to the switch on the same VLAN ■ concurrent (dual-stack) operation with IPv4 traffic and devices on the same VLAN ■ using a connection to an external, IPv6-configured router, forward IPv6 traffic intended for devices on other VLANs and for traffic that must traverse an IPv4 network to reach an IPv6 destination IPv6/IPv4 Router ProCurve Switch H1 H2 IPv6/IPv4 Router IPv4 Network DHCPv6 Server ProCurve Switch H3 IPv6/IPv4 IPv6-Capable Router DNS Server H4 H5 H6 Figure 2-1. Dual-Stack ProCurve Switches Employed in an IPv4/IPv6 Network 2-3