IPv6 Prefix Delegation on ONT

Hello Darkatt,

Thanks for the response. I have a Miktrotik router. I've configured it to receive prefix of /64 with a prefix hint of 64 in the DHCP client section. It never receives a prefix and just continues to search.

Do not configure anything, set it to DHCP. Everything is handled by a DHCP server, and if you specify something, it won't work. Just ensure if you have the IPv6 package on your router that it's set to DHCP ONLY. 

Accotding to your MFG website - 

https://forum.mikrotik.com/viewtopic.php?t=196218

1) Your ISP support IPv6?
2) The IPv6 package is installed (or included on bundle package)?
3) The IPv6 package is enabled?

a) The router must be configured to receive, on some way, IPv6 address to redistribute it internally.

Requesting a prefix delegation size is not necessary unless you want something other than the default.  The default would be the /64 you're seeking and the fewer custom requests you make to the DHCP server, the more likely you'll achieve success.

It would also help if a moderator could clarify whether or not IPv6 is available on FTTH connections now.  In the past, it was not available but I'm not aware if that is been addressed since then.

I removed the prefix delegation size and it's still just searching at this point. Definitely open to suggestions.

I can't speak to the particulars of your specific router.  Many routers let you set IPv6 to Automatic which essentially means try every possible method of obtaining an IP until something works which is something I suggest, especially if you're new to IPv6.

If none of that works, next thing we would need to do is determine if IPv6 is available on your connection.  That's where a moderator's help would be necessary.

IPv6 is available on fiber connections. I was one of the first people trained in fiber support when i was working at Cox, so believe me, I know what I am talking about. The Router the customer has has to have an IPV6 package on iit, according to the MFG's web site. If it's not getting an IPv6 asnd everything is correct, they MAY need to contact the mfg. They can connect a compute direct to the ONT and see if the computer gets an IPv6 address also. 

The router has the IPv6 package installed on it. I was able to pull an IPv6 address (and prefix) from a juniper router I have in my lab with no problem so I know it's know the router.

I think the question as ExtraChrispy eluded to is that a previous Coxe employee/Moderator on these forums says something that is the exact opposite of what you're saying (i.e. PON circuits are IPv6 compatible) which needs to be clarified.

In my area, I'm successfully requesting a /56.  There's really no reason to not stick with a /64 if you just have a single network running in your home.  If you have multiple interfaces on your router however, a /56 /60 PD allows you to assign unique /64 PD's to each of your interfaces.  I'm successfully doing this now with a total of 9 interfaces on my firewall.

What model of ONT do you have and what router are you using?

Alcatel-Lucent G-010G-A ONT, circa mid-2018 installation, pfSense router.

My setup too is also pfSense based.  Once you understand VLANs you can pretty much make as many virtual interfaces as you like for whatever purposes you can think of.