getting DNS config to clients

[Nick Hilliard]

> What would that address be ?

Anything you want.

> What have people used ?
> 
> Any idea's ? I'd guess if it's for a small corporate or home network,
> using a link-local address is probably best ? As they can't be routed.
> 
> A lot of the times you see 192.168.0.1 or something like that in
> smaller IPv4-networks. would FE80::1 be a good idea as well ?

Using private address space for public anycast services is an extremely bad 
idea.  What if your customer has configured 192.168.0.0/24 on their LAN? 
This will cause their DNS resolution to fail unless they renumber.

fe80::/16 is link-local addressing.  I.e. it is reachable only if it's on 
the local address.  If you have hosts and routing involved, it will not work.

There are no "well known addresses" to use here.  Best advice is to pick an 
single IPv6 address from your allocated pool and publish that on your 
support page / customer data guide / DHCP server / etc.

Nick