Why when checking the IPV6 address of a typical linux installation there is usually 3 address? Why is there 3 and how do you figure out what each one is for?

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• slazer2au@lemmy.world ⁨5⁩ ⁨hours⁩ ago

  Because ipv6 allows multiple addresses for different reasons. I assume one of those addresses star with FE80 which is for your local lan devices to talk to each other and that long one is your actual global address to access the internet. Without seeing the actual prefixes its hard to tell.

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  • Mim@lemmy.zip ⁨5⁩ ⁨hours⁩ ago

    The third one is is the link local address, it has a scope of “link”.
    I’d guess the other one are a host address ( a /128) and a regular /64 address.

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    • kn33@lemmy.world ⁨4⁩ ⁨hours⁩ ago

      Could also be a /64 privacy address and a /64 “standard” address (SLAAC, DHCP, static)

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• SnotFlickerman@lemmy.blahaj.zone ⁨4⁩ ⁨hours⁩ ago

  Global unicast, link-local, loopback, unique local

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• Creat@discuss.tchncs.de ⁨4⁩ ⁨hours⁩ ago

  Just to add to this: it would be the same in Windows. It’s how ipv6 functions in general. The system will figure out which address to use, you shouldn’t need to use them directly in almost any case.

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• marcos@lemmy.world ⁨4⁩ ⁨hours⁩ ago

  The scope tells you who can use that address to connect to you, and the ‘dynamic’ field tells you if your computer things it may change (it may not know enough).

  Your computer has 2 global addresses.

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