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Re: IPv6 addressing
If I remember my stuff correctly fe80s are what are called "link local" addresses which are private addresses like APIPA (169.254.x.x). With ipv6 every device will have an fe80 address even if it has got a WAN address (global unicast). The nice about ipv6 is that each device can have mtultiple address such as the local address, wan address and also multicast addresses all at the same time.
As far as the op is concerned your ipv6 address isnt something Vm are doing, it is something the latest versions of windows are doing to give themselves an ipv6 address. Link local addresses are non-routable so if VM were to flick a switch and all of sudden get rid of your ipv4 address you wouldnt be able to get on the internet. Global unicast addresses start with 2000:
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