IPv6 - Ubuntu Wiki - 0 views
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problems with IPv4
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Running out of addresses
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hiding behind Network Address Translation (NAT)
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Routing table were getting too large
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IPv6 deals with these and many other issues: 128 bit address space
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Each computer can have it's own globally routable address
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packet sent to a unicast address arrives exactly at the interface belonging to the address.
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Smaller routing tables
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better geographic and more hierarchical allocation strategies
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Background on IPv6 Addresses There are different types of IPv6 addresses: Unicast, Anycast and Multicast.
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Unicast
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no need for NAT in IPv6
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Anycast addresses may only be used by routers.
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Anycast
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Multicast
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will arrive at all interfaces belonging to the multicast group.
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Reading IPv6 Addresses
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8 hexquad
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third form
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autoconfigured link-local address
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Special IPv6 address ranges
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fe80::/10
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fe80:: 10 link-local Unroutable autoconfigured addresses used on a LAN, e.g. for DHCPv6
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Tunneled IPv6
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tunnel your IPv6 traffic to a compatible relay somewhere