my ISP forced me to IPv6 recently (DS-Lite, so for the moment no real IPv4).
Now I'm fighting with IPv6 to drop IPv4 on my Infrastructure.
My ISP gave me exactly 1 Address. I have "hacked" the FritzBox 6591 to give me a /56. The FritzBox is getting now a /56.
Behind this Box I have 3 OpenWrt Rotuers. With several clients.
On IPv4 they all have their own Subnet (like .1.0, .2.0, .3.0). The Networks were connected with proper routes. 2.0 and 3.0 have no Internet access (just no gateway).
I want to keep my own resolver/adblocker (unbound/stubby/dnsmasq setup) and kind a stable random ip for the servers. I'm using DHCP with static leases for several clients/server. OpenWrt Boxes are getting no eui64 address from FB. Just full MAC after prefix inside.
1st Problem: I have issues to get a proper IP for the clients in my network.
So I want to understand and solve the IP problem. Therefore I want to configure my "Gateway" aka ISP modem properly. I need some advise.
Fritzbox: Picture 1 and 2 are the config its. 3rd picture showing possible other options.
OpenWrt: Picture 4 that what I get on OpenWrt.
I will post configs if Fritzbox settings looks O. K. for you guys.
Thanks in advance for help.