B6609de3 20e1 4b96 2024 Aad384998ce1a. To configure ipv6 in ios, as with ipv4, addresses need to be assigned to interfaces. To access your router with a browser using ipv6 you'll need to find out which 'normal' (global scope) addresses it has.
With ipv6, private addresses are called ula (unique local address), and they are defined by rfc 4193, unique local ipv6 unicast addresses. Poseidon v2 is a new reference platform that leverages pcie gen5 and the e3 form factor.