Grzegorz Janoszka wrote:
Phil Mayers wrote:
Hmm. So in theory you can configure a router to advertise fe80:something::/64 as the link prefix?

Ok; why would you want to? Link-local prefixes are still link-local, it just requires an extra link of config to make bits 11-64 the same as the unicast prefix.

You cannot have the same link-local IP's on different ifaces, can you?

Yes you can; in fact, it's the norm. This is the reason behind things like:

ping fe80::something%eth0

...or whatever your OS syntax is
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