Public bug reported:
Recently I installed 18/19/20 Ubuntu to my Dell desktop, which has eht0 and
plugged-in wlan0. But for wlan0, it would never get any link-local inet6
address bind even it associated to AP successfully. eth0 works well same as
older Ubuntu version behaviour (16.04).
After wlan0 connected to AP, IPV4 is all good. but IPV6 link-local never
appeared. manually add v6 address works. dhclient -6 wlan0 will never work
since it doesn't have a link-local address.
Similar act on eth0 will not have this problem. whenever the eht0 connects
physically, it gets inet6 generated automatically.
Doubted that new 20.04 (including 19.10/18.04) kernel missing this part
-> inet6 generated for wifi adapters when a physical connection has
established?
** Affects: ubuntu-docs (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1879599
Title:
Ubuntu 18.04/19.10/20.04, wlan0 doesn't have inet6 link local address
generated automaticlly.
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