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NETWORK-CALCULATOR.COM |
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IP ADDRESS
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IP ADDRESS
The 128 bits of an IPv6 address are represented in 8 groups of 16 bits each. Each group is written as four hexadecimal digits (sometimes called hextets) and the groups are separated by colons (:).
MASK
Initially a network mask of 64 bits is shown. This mask can be modified at any time.
IP SIMPLIFIED NOTATION (IP S.)
It shows the entered IPv6 as a simplified notation.
For convenience, an IPv6 address may be abbreviated to shorter notations by application of the following rules.
- One or more leading zeroes from any groups of hexadecimal digits are removed; this is usually done to either all or none of the leading zeroes. For example, the group 0042 is converted to 42.
- Consecutive sections of zeroes are replaced with a double colon (::). The double colon may only be used once in an address, as multiple use would render the address indeterminate. RFC 5952 recommends that a double colon not be used to denote an omitted single section of zeroes.
An example of application of these rules:
Initial address: 2001:0db8:0000:0000:0000:ff00:0042:8329
After removing all leading zeroes in each group: 2001:db8:0:0:0:ff00:42:8329
After omitting consecutive sections of zeroes: 2001:db8::ff00:42:8329
The loopback address, 0000:0000:0000:0000:0000:0000:0000:0001, may be abbreviated to ::1 by using both rules.
NETWORK
Displays the network as defined by IPv6 ADDRESS and MASK selected in the above fields.
MINIMUM AND MAXIMUM HOST
Shows the range of IP address belonging to the network, which can be configured as hosts.
TYPE
::
UNSPECIFIED - This address may only be used as a source address by an initialising host before it has learned its own address.
::1
LOOPBACK - This address is used when a host talks to itself over IPv6. This often happens when one program sends data to another.
::ffff / 96
IPv4-MAPPED - These addresses are used to embed IPv4 addresses in an IPv6 address. One use for this is in a dual stack transition scenario where IPv4 addresses can be mapped into an IPv6 address. See RFC 4038 for more details.
Example: ::ffff:192.0.2.47
fc00:: / 7
UNIQUE LOCAL ADDRESSES (ULAs)
These addresses are reserved for local
use in home and enterprise environments
and are not public address space.
These addresses might not be unique,
and there is no formal address
registration. Packets with these
addresses in the source or destination
fields are not intended to be routed on
the public Internet but are intended
to be routed within the enterprise or
organisation.
See RFC 4193 for more details.
fe80:: / 10
LINK - LOCAL ADDRESSES
These addresses are used on a single
link or a non-routed common access
network, such as an Ethernet LAN. They
do not need to be unique outside of that
link.
Link-local addresses may appear as the
source or destination of an IPv6 packet.
Routers must not forward IPv6 packets if
the source or destination contains a linklocal
address.
Link-local addresses may appear as the
source or destination of an IPv6 packet.
Routers must not forward IPv6 packets if
the source or destination contains a linklocal
address.
ff00:: / 8
MULTICAST - These addresses are used to identify multicast
groups. They should only be used as destination
addresses, never as source addresses.
2000:: / 3
GLOBAL UNICAST - Other than the exceptions documented in this
table, the operators of networks using these
addresses can be found using the Whois servers
of the RIRs listed in the registry at:
http://www.iana.org/assignments/ipv6-unicast-address-assignments
PATTERN
Displays the pattern of the entered IPv6 ADDRESS
Muestra el esquema de la DIRECCIÓN IPv6 que has configurado para los cálculos de subneteo. Using color coding can visually see the bits of IPv6 ADDRESS that identifies the network, subnet and host.
- bit identifying the network
- bit identifying the subnet
- bit identifying the host
SUBNET CALCULATION
Here you can configure the parameters for subnetting calculation. You can select the subnet mask that will always be equal or superior to the original network mask.
By pressing the LIST button all subnets will be listed in a pop-up window.