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# What is an IPv6 nibble?

## What is an IPv6 nibble?

• An IPv6 address is 128 bits. • A nibble is 4 bits (half a byte) •Characters in an IPv6 address are hexadecimal.

### How many bites are in IPv6?

16 bytes
The IPv6 address is 128 bits (16 bytes).

Is IPv6 a 16 bit?

IPv6 is written in hexadecimal notation, separated into 8 groups of 16 bits by the colons, thus (8 x 16 = 128) bits in total.

Is IPv6 a 48 bit?

In precise terms, an IPv6 address is 128 bits long and is arranged in eight groups, each of which is 16 bits.

## How many hosts can IPv6 support?

Remember, with IPv6 the standard prefix size for a typical network segment is a /64. This works out to 264 or 18,446,744,073,709,551,616 addresses that can be assigned to hosts.

### What is IPv6 sub netting?

IN IPv6, the subnet ID defines an administrative subnet of the network and is up to 16 bits in length. You assign a subnet ID as part of IPv6 network configuration. The subnet prefix defines the site topology to a router by specifying the specific link to which the subnet has been assigned.

How many bits is IPv4 and IPv6?

IPv6 has a vastly larger address space than the impending exhausted IPv4 address space. IPv6 increases the size of the IP address from the 32 bits that compose an IPv4 address to 128 bits.

How many 8-bit bytes are in an IPv6 address?

sixteen 8-bit
Either of these numbers would have given a rather large number of addresses. However, IPv6 addressing doesn’t use either of these figures; instead, the IP address size jumps all the way to 128 bits, or sixteen 8-bit octets/bytes.

## Is IPv6 64 bit or 128-bit?

IPv6 addresses An Ipv6 address uses 128 bits as opposed to 32 bits in IPv4. Because an hexadecimal number uses 4 bits this means that an IPv6 address consists of 32 hexadecimal numbers.

### What is IPv6 64?

The /64 is the prefix length. It is the number of bits in the address that is fixed. So a /64 indicates that the first 64 bits of the 128-bit IPv6 address are fixed. The remaining bits (64 in this case) are flexible, and you can use all of them.

Does IPv6 need a subnet mask?

IPv6 doesn’t have a subnet mask but instead calls it a Prefix Length, often shortened to “Prefix”. Prefix length and CIDR masking work similarly; The prefix length denotes how many bits of the address define the network in which it exists.