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Are all IPv6 addresses public?
A public IPv6 address is an IP address which is accessible by anyone on the Internet. To avoid upsetting the order, the public IPv6 address is often globally unique. It can only be assigned to a unique device such as a web server, an email server or any server device directly accessible from the Internet.
Can two hosts have the same IPv6 address?
This is unchanged from IPv4. If you’re asking “Give my IPv6 address and subnet mask and another IPv6 address, can I know whether these hosts are in the same network?”, the answer is yes, absolutely.
What is the link local IPv6 address?
A link-local address is an IPv6 unicast address that can be automatically configured on any interface using the link-local prefix FE80::/10 (1111 1110 10) and the interface identifier in the modified EUI-64 format. Link-local addresses are not necessarily bound to the MAC address (configured in a EUI-64 format).
What is the purpose of link-local IPv6 addresses?
Introduction. IPv6 link-local addresses are addresses that can be used to communicate with nodes (hosts and routers) on an attached link. Packets with those addresses are not forwarded by routers.
Why do two devices on same local network show different IPv6?
No, they should have different addresses on the same subnet; the first part of the addresses should match, and also match one of the address ranges on the router (on the INSIDE interface of the router, to be specific). This is one area where IPv4 and IPv6 are quite different.
How are IPv4 and IPv6 addresses related?
This form combines IPv4 and IPv6 addresses. In this case, the address format is n:n:n:n:n:n:d.d.d.d, where each n represents the hexadecimal values of the six IPv6 high-order 16-bit address elements, and each d represents the decimal value of an IPv4 address. The leading bits in the address define the specific IPv6 address type.
How are global unicast addresses organized in IPv6?
The unicast address format is organized in the following hierarchy: The global unicast address is globally unique in the Internet. The example IPv6 address that is shown in Prefixes in IPv6 is a global unicast address. The next figure shows the scope of the global unicast address, as compared to the parts of the IPv6 address.
Why is the address space so big in IPv6?
In the Internet Protocol version 6 (IPv6), addresses are 128 bits long. One reason for such a large address space is to subdivide the available addresses into a hierarchy of routing domains that reflect the Internet’s topology. Another reason is to map the addresses of network adapters (or interfaces) that connect devices to the network.