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