Hi there, 

IPv6 is by definition "multi-homed", so you would do Global Unicast
Addresses (GUA; Prefix 2000::/3; RFC 4291) via your router and Unique
Local Addresses (ULA; Prefix fc00::/7; RFC 4193) via dnsmasq. 

If you want to manager GUA also via dnsmasq, then you need to do DHCP-PD
from dnsmasq to your router. 

What kind of prefix do you get from your ISP? /48, /56, /60, /64? 

Regards
Maddes 

On 2018-05-06 01:48, Merell Matlock wrote:

> Hoping for some help/insight it my attempting to setup IPV6 DHCP; I must
> not seem to be able to input the right search terms, because I keep
> going around in circles.
> 
> My Setup:
> 
> ISP <> Modem <> Router <> home network
> 
> DNS/DHCP on an RPi3 (DNSMASQ/Pi-hole, behind the router).
> 
> V4 DHCP from the RPi works flawlessly.
> 
> My router is pulling V6 from the ISP via DHCP-PD, and I can't fine-tune
> the routers' RA to only send out route info, and if I disable the RA
> from the router, no IPV6 at all (ifconfig/ipconfig only shows link-local
> addresses), no matter what I try with DNSMASQ.
> 
> IPV6 pass-through on the router has the same result.
> 
> Here is what I have from .conf files (all from pi-hole interface):
> 
> enable-ra
> dhcp-option=option6:dns-server,[::]
> dhcp-range=::100,::1ff,constructor:eth0,ra-names,slaac,168h
> ra-param=*,high,60,0
> 
> I changed the ra-param in an attempt to bypass the routers' RA.
> 
> Option6 is working as expected.
> 
> Any ideas, or am I just looking at a pipe dream (wanting host names in
> the pi-hole query log, instead of IPV6 addresses).
> 
> Thank you,
> 
> Merell Matlock
> 
> _______________________________________________
> Dnsmasq-discuss mailing list
> Dnsmasq-discuss@lists.thekelleys.org.uk
> http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
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