Why we use Internet protocol?
-Internet protocol is a method or protocol, through which we can sent out data from one computer to another.
Different version of Internet Protocols
IP version 1 to 3 were not formally assigned.
IP version 4 (IPv4)- TCP/IP , having a 32 bit address. it is currently used.
IP version 5- Streamed Protocol (ST), Connection Oriented internet level Protocol.
IP version 6 (IPv6) having 128 bit address, designed for replacement of IPv4.
Difference Between IPv4 and IPv6
-Internet protocol is a method or protocol, through which we can sent out data from one computer to another.
Different version of Internet Protocols
IP version 1 to 3 were not formally assigned.
IP version 4 (IPv4)- TCP/IP , having a 32 bit address. it is currently used.
IP version 5- Streamed Protocol (ST), Connection Oriented internet level Protocol.
IP version 6 (IPv6) having 128 bit address, designed for replacement of IPv4.
Difference Between IPv4 and IPv6
Internet
Protocol version 4 (IPv4)
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Internet
Protocol version 6 (IPv6)
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Source and destination
addresses are 32 bits (4 bytes) in length.
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Source and destination addresses
are 128 bits in length.
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IP header includes a
checksum.
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IP header does not
include a checksum.
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IP header includes
options.
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All optional data is
moved to IPv6 extension headers.
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IPSec support is
optional.
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IPSec support is
required in a full IPv6 implementation.
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No identification of
payload for QoS handling by routers is present within the IPv4 header.
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Payload identification
for QoS handling by routers is included in the IPv6 header using the Flow
Label field. For more information.
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Address Resolution
Protocol (ARP) uses broadcast ARP Request frames to resolve an IPv4 address
to a link layer address.
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Uses multicast Neighbor
Solicitation messages for address resolution.
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Internet Group
Management Protocol (IGMP) is used to manage local subnet group membership.
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Uses Multicast Listener
Discovery (MLD) messages to manage local subnet group membership.
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Addresses must be
configured either manually or through Dynamic Host Configuration Protocol (DHCP).
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Addresses can be
automatically assigned using stateless address auto configuration, assigned
using Dynamic Host Configuration Protocol version 6 (DHCPv6), or manually configured.
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Uses host address (A)
resource records in the Domain Name System (DNS) to map host names to IPv4
addresses.
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Uses host address (AAAA)
resource records in the Domain Name System (DNS) to map host names to IPv6
addresses.
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Uses broadcast addresses
to send traffic to all nodes on a subnet.
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There are no IPv6
broadcast addresses. Instead, multicast scoped addresses are used. For more
information.
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Fragmentation is
supported at originating hosts and intermediate routers.
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Fragmentation is not
supported at routers. It is only supported at the originating host. For more
information.
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