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Dan Streetman
0917a27178
network: if ipv6ll is disabled, enumerate tentative ipv6 addrs before dropping foreign addrs
The kernel will create an ipv6ll tentative address immediately when an interface is raised if addr_gen_mode is not disabled; and, the kernel does not notify netlink listeners about any tentative addresses. So it's possible for an interface to contain tentative ipv6 link-local address(es) that networkd doesn't know about when all foreign addresses are dropped. In this case, networkd is later notified about the new ipv6ll address(es) after they finish DAD and are no longer tentative; but since that's after networkd has already dropped foreign addresses, they are incorrectly left on the interface.
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