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  "title": "Hello IPv6: a minimal tutorial for IPv4 users",
  "note": "This is a very good overview of the key differences in IPv6 versus IPv4. The main sections are:\n\n> Here is an extremely short summary.\n> \n> - IPv6 has a different Ethernet frame type.\n> - IPv6 address is 128-bit with 64-bit (network) prefix and 64-bit interface id.\n> - IPv6 does not use ARP but NDP.\n> - IPv6 has no broadcast address concept; some multicast addresses play this function.\n> - IPv6 addresses can be dynamically configured like DHCPv4 but also, and probably more often, they can be configured without keeping a state, using a combination of DHCPv6, RA, PD, and SLAAC.\n> - NAT is not necessary for IPv6.\n> - If needed, for privacy reasons, a random and temporary IPv6 address can be used.\n\nThe most obvious thing between the two is what the addresses look like, but the actual differences are much deeper. ",
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