Differences in Internet Protocol Version 4 (IPv4) and Internet Protocol Version 6 (IPv6)
I. Internet Protocol Version 4 (IPv4)
IPv4 is a type of network used in the protocol
TCP / IP network using the IP protocol version 4. IP version has limitations
which is only able to address a host computer as much as 4 billion worldwide.
Examples of IPv4 address is 192.168.0.3
In IPv4 there are 3 types of classes, depending on the size of the host, ie class A (section
throughout the 24-bit host, the IP address can be assigned to host 16.7 million), class B (host part
16-bit host = 65534) and class C (section hosts all 8 bits = 254 hosts).
Network administrators to apply for the class type network based on scale
management. The concept of this class has the advantage of: the management of the information is not
require all 32 bits, but quite simply part of the network only, so
of the information stored in the router, be small. Once the network address is obtained,
then the organization can freely give the address section on each host
host.
Comparison of IPv4 and IPv6
Provision of internet addresses in the following format IP address (RFC 1166). This address
expressed with 32 bits (numbers 1 and 0) were divided into 4 groups (each group
consists of 8 bits or octets) and each group is separated by a dot. To
facilitate reading, writing addresses is done with decimal numbers, for example
100.3.1.100 which if expressed in a binary
01100100.00000011.00000001.01100100. 32 bits of this means the number of maximum number
addresses that can be written is 2 to the power 32, or 4,294,967,296 addresses. The address format
consists of 2 parts, netid and hostid. NetID own states while the network address
hostid declare a local address (host / router). 32 bits of this, should not all of the digits 0 or
1 (0.0.0.0 is used for networks that are not known and are used to 255.255.255.255
broadcast). In its application, the internet address is classified into classes (AE) ..
Reason for this classification include:
· Facilitate the management system and setting addresses.
· Utilize existing address number is optimum (no address
missed).
· Allows organizing a worldwide network with a network distinguishes
The category includes large, medium, or small.
· Distinguish between the address and the address for the network to host / router.
Described in the table below based on the availability of data from the APNIC IPv4
until the end of 1999 ago and total IP that has been allocated to each - each country in
Asia Pacific.
II.5 Internet Protocol Version 6 (IPv6)
IPv4 to IPv6 transition is a phenomenon which is inevitable by all
circles. Although still able to use IPv4, IPv6 has a different design versions and
has more uses than IPv4. Accompanied by the growth of the innovations
tech, then the nations of the world are required to compete or at least
gradually began to implement IPv6. According to the Internet Protocol,
not expected until 2011, IP address allocation which is still used today will
exhausted. Then came a new peangalamatan method known as IPv6. In
Indonesia, one of the Internet service provider, Indosat Mega Media (Indosat M2), since 2004 has been
IPv6 network is ready to rent out.
IPv6 is an IP addressing method which slowly began to replace IPv4.
IPv6 is used as due to the limited number of IP addresses owned by IPv4,
considering the increasing number of IP-based devices at this time. IPv6 or Internet Protocol
Internet Protocol version 6 is the latest which is a further development of the
protocol that is used today, IPv4 (Internet Protocol version 4). IPv6 addressing
uses 128-bit addresses far more than the 32-bit addressing
belongs to IPv4. With a capacity of very large IP address in IPv6, every device that
can connect to the Internet (desktop computers, laptops, personal digital assistants, or phone
GPRS/3G mobile) can have a fixed IP address. So, sooner or later every
No electronic devices that can be connected to the Internet via a unique IP address.
The IPv6 protocol has several new features that are an improvement over IPv4, including
:
• Have a new header format
The IPv6 header has a new format that is designed to keep header overhead
minimum, to eliminate the fields that are not required and some optional fields
Comparison of IPv4 and IPv6
are placed after the IPv6 header. IPv6 header alone is twice the size of a large
of the IPv4 header.
• Range address a very large
IPv6 has 128-bit or 16-byte for each source and destination IP addresses.
So logically IPv6 can accommodate about 3.4 x 1038 possible combinations
address.
• efficient and hierarchical addressing and routing infrastructure
Global address of IPv6 are used in the IPv6 portion of the Internet, is designed to
creating an efficient routing infrastructure, hierarchical, and easily understood by
developers.
• Configuration is stateless and statefull addressing
IPv6 support is statefull addressing configuration, such as address configuration
using a DHCP server, or a stateless without using the DHCP server. On
The second configuration, the host automatically configure themselves with IPv6 addresses
to link the so-called link-local address and address prefix derived from the
transmitted by the local router.
• Built-in security
Support for IPsec provides support for network security and offers
interoperability between different IPv6 implementations.
• Better support in terms of QoS
In the IPv6 header contained in the identification of traffic using the Flow Label field, so
QoS support can still be implemented even though the packet payload is encrypted through
IPsec.
• The new protocol for interaction nodes
Contained in IPv6 Neighbor Discovery Protocol which replaces Address Resolution
Protocol.
• EkstensibilitasIPv6 can be easily added by adding new features
extension headers after the IPv6 header. The size of IPv6 extension headers is only constrained by the
the size of the IPv6 packet itself.
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