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Forum Discussion
Setting Link Local address as preferred IPv6 DNS server
Hello,
I have a DNS server on my home network that I'd like to set as the preferred DNS server for both IPv4 and IPv6. I have a CAX80 router/modem combo.
For IPv4, I was able to set it up no...
The IPv6 GUA network prefix (the one you pointed out in your original reply) is not static and is in part delegated by Comcast (my ISP). But to your point, just because they can change it doesn't mean they will. It will depend on your location, your ISP and I think your modem how frequently it changes. I would see using the GUA as a temporary solution.
You can point devices on your network to a DNS server using any of the server's IPv6 addresses (e.g. Global, Unique Local, or Link Local) so why not choose one that is not influenced by your ISP? Choosing a fe80::/ or fd00::/ address is the preferred route for those that have a router willing to accept a non-GUA address, and is the reason I'm asking here how to make my Netgear router do the same.
You can either use the full ipv6 address for your device or disable ipv6 and just use ipv4.
sure they're subsets of it, but for it to be the dns server, you need the global one on netgear.
I've been using it for years and its worked fine. I usually have the same ipv6 address for the computer. it'll change whenever I swap modems but thats easy enough to go in and change