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Disclaimer: by no means I’m an IPv6 expert and I’m not going to teach on different IPv6 configuration options and basics. In this post, I will focus solely on a specific subject.

As a part of my IPv6 learning path I played with stateful DHCPv6 and spent all weekends to sort one interesting. Here is my simple network setup:


basically, two private networks connected to a router.

  1. UDM Pro router
  2. L2 switch
  3. DHCPv6 stateful server
  4. DHCPv6 client
  5. IPv6 network: fd00:0:0:4::/64

The problem: clients receive IPv6 address from DHCPv6 and cannot communicate in same network using LUA (fd00) addresses.

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