If the interface's link-layer doesn't use link-layer addresses it obviously doesn't make sense to auto-configure an IPv6 address from it. Moreover, I think the address `fe80::` is actual illegal, but I couldn't find any references for it.
If the interface's link-layer doesn't use link-layer addresses it obviously doesn't make sense to auto-configure an IPv6 address from it. Moreover, I think the address `fe80::` is actual illegal, but I couldn't find any references for it.