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How do you represent an IPv6 address?
The IPv6 address size is 128 bits. The preferred IPv6 address representation is: x:x:x:x:x:x:x:x , where each x is the hexadecimal values of the eight 16-bit pieces of the address. IPv6 addresses range from 0000:0000:0000:0000:0000:0000:0000:0000 to ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff .
What are the two types of IPv6 messages?
IPv6 Address Types
- Unicast—For a single interface.
- Multicast—For a set of interfaces on the same physical medium. A packet is sent to all interfaces associated with the address.
- Anycast—For a set of interfaces on different physical media.
How is IPv6 address formatted in hosts file?
The hosts file format consists of lines, each of which contains the IP address, followed by whitespace, then one or more hostnames, also separated by whitespace. Nothing changes when the address is an IPv6 address instead of a legacy IPv4 address. The format is the same.
What’s the IPv6 address of the sites you never want to visit?
Specifically, you can list the sites you never want to visit in the Hosts file and give them the loopback address of 127.0.0.1 using IPv4 addressing or ::1 for IPv6 addressing.
How are local IPv6 addresses used in a router?
Link-local addresses are used for communication among IPv6 hosts on a link (broadcast segment) only. These addresses are not routable, so a Router never forwards these addresses outside the link. This type of IPv6 address is globally unique, but it should be used in local communication.
Do you have to enter IPv4 address twice for IPv6 address?
If you have a dual-homed address (where a host listens to both IPv4 and IPv6), you will have to enter it twice, once for the IPv4 address and once for the IPv6 address: I won’t discuss network masks and ranges, but if you want a reference to the standard ranges, RIPE produced a PDF with them if you would like a quick overview of them.