Interesting reads.  I even understood 1/4 of them :)

My router does not (as far as I can tell, digging thru IPV6 settings) do
GUA addressing.  I think I understand how to get dnsmasq issue ULA's,
based upon a previous message from you (Sun Aug 20 14:33:35 BST 2017).

Based upon this:

dhcp-range=set:ula6,fd7a:d:e:f::1:0,fd7a:d:e:f::1:ffff,64,12h

Would I then comment out the line from my config:

dhcp-range=::100,::1ff,constructor:eth0,ra-names,slaac,168h

I assume that would give me fc00::/7 addresses for my clients, with
global addresses coming from the router?

I get a /64 from my ISP:  (2600:8807:xxxx:27::/64)

Thanks,

Merell





On 05/05/2018 09:37 PM, M. Buecher wrote:
> 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
>> <mailto:Dnsmasq-discuss@lists.thekelleys.org.uk>
>> http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss


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