From: Su Yanjun <suyj.f...@cn.fujitsu.com> Date: Wed, 31 Jul 2019 09:52:52 +0800
> When the egress interface does not have a link local address, it can > not communicate with other hosts. > > In RFC4861, 7.2.2 says > "If the source address of the packet prompting the solicitation is the > same as one of the addresses assigned to the outgoing interface, that > address SHOULD be placed in the IP Source Address of the outgoing > solicitation. Otherwise, any one of the addresses assigned to the > interface should be used." > > In this patch we try get a global address if we get ll address failed. > > Signed-off-by: Su Yanjun <suyj.f...@cn.fujitsu.com> > --- > Changes since V2: > - Let banned_flags under the scope of its use. I do not want to apply this. The only situation where this can occur is when userland is managing the interface addresses and has failed to properly add a link local address. That is a failure by userspace to uphold it's responsibilites when it has taken over management of these issues, not a situation the kernel should handle. Sorry.
