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IPv6 Addressing

See how delegated prefix space, link-local scope, router advertisements, and neighbour discovery shape a real IPv6 host.

Host interface2001:db8:1200:3412::/64fe80::1c2b:44ff:fe8a:9d112001:db8:1200:3412:8d6a:72c1:48f0:19a22001:db8:1200:3412:4c6d:54f7:ce20:6ad3temporary global sourceRouterfe80::1 on the local linkRA payloadprefix 2001:db8:1200:3412::/64A=1, L=1default via fe80::1valid 86400s, preferred 14400sGlobal destination2001:4860:4860::8888IPv6 forwarding pathrouted beyond the LANsource selected: temporary global
Step 1 / 6A delegated prefix becomes many `/64` LANs

An ISP can hand a home or office one larger block, then the local router splits that block into normal `/64` networks. The selected subnet slider below shows one of those LANs.

Selected LAN prefix: 2001:db8:1200:3412::/64

Delegated prefix 2001:db8:1200:3400::/56, selected LAN 2001:db8:1200:3412::/64

Preferred global source identity
Destination scope for source-address selection

Selected source now: 2001:db8:1200:3412:4c6d:54f7:ce20:6ad3

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