I gather you are supposed to use netif_set_link_up()/down() when you have a change in link status. So, I notice that from calling netif_set_link_up() after getting a valid link status then DHCP Request messages go out and all that is verified
again. That is working well. But I am now wondering what should be happening on the IP6 side. When my link comes back up after going down I see some router solicitation messages go out again but I am wondering if also some neighbor discovery messages should
go out as well to verify the link local and auto-configured addresses.
When my link is re-established I tried manually setting any IP6 address states to IP6_ADDR_TENTATIVE and I noticed that this causes the neighbor solicitations to go out again and then the states go back to IP6_ADDR_PREFERRED. Is there
another, more preferred, way to accomplish this?
-Zach