[Dnsmasq-discuss] Win10 Dhcpv6 issue?

[Xander Victory]

I'm having some trouble getting windows 10 to keep its v6 lease, it seem 
to fail to renew.

 From packet sniffing it seems to just be ignoring DNSMasq's replies to 
the renew packets, and then falls back to soliciting continuously, 
despite being replied to.

I've attached the pcap files (hopefully). Shows that it acquires it on 
reboot, but fails after the lease time is (about to?) expire - set at 2 
hours because of issues with the xbox one getting a new address each 
boot (you can see in the 2nd pcap that it renews its address just fine).

Is windows 10 borked or is it something with my config? I'm unsure if 
this is a recent development or not to be honest.

Not exactly related, but I've noticed that DNSMasq sends its v6 packets 
(router advertisements and dhcpv6) from the full link local address, 
even though the default address is a manually configured fe80::1

relevant config:

dhcp-host=id:00:01:00:01:1a:1b:af:8c:bc:5f:f4:d8:41:bc,[::3],bc:5f:f4:d8:41:bc,10.1.2.6,xander
dhcp-range=br0,10.1.2.100,10.1.2.249,255.255.255.0,12h
dhcp-range=br0,2001:44b8:610e:3c00::4,2001:44b8:610e:3c00::ffff,2h
enable-ra
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