IPv6 introduced excellent enhancements to IPv4. The improvements include: Mobility, security, smaller header, address formatting.
Mobility is a new, IPv6 function. Mobility allows users with mobile network devices to change locations around the network. Mobile IP is an IETF common that is accessible for IPv4 as well as IPv6. This regular permits mobile devices to move with out disruptions in established networks.
IPSec is an additional IETF typical for IP net security. It is supplied by both protocols. The IP net security characteristics are fundamentally comparable in both environments. IPSec is enhanced in IPv6 and can be enabled on each node that utilizes this protocol.
Smaller Header
The header utilised for IPv6 improves routing efficiency by decreasing the quantity of records in the routing tables. No broadcasts are produced by IPv6. IPv4 creates broadcasts that create a high level of network site visitors. This network visitors produces an event recognized as a broadcast storm and the entire network stops functioning. IPv6 replaced broadcast visitors with multicast and anycast targeted traffic.
Address Formatting
The hexadecimal digits A, B, C, D, E, and F represented in IPv6 addresses are not case-sensitive. IPv6 address string format is not fixed. The subsequent guidelines are made use of for IPv6 address string notations: The very first 0s in a field are optional. For example 09C0 equals 9C0 and 0000 equals . 1 or significantly more sets of 0s can be deleted and replaced with "::". Also, only one particular "::" is permitted in an address.
The "::" symbolization tremendously shrinks the size of most IP addresses. For instance, FF01:::::::1 becomes FF01::1. The major type of IPv6 address is called unicast. Unicast transmits packets to a distinct device with one particular IP address. Multicast transmits an IP packet to each member of a group. Anycast transmit an IP packet to all the devices that have an anycast address assigned. Anycast visitors can also be thought of as a 1-to-nearest kind of site visitors.
Reserved Addresses
A portion of the IPv6 address space is reserved for various makes use of. IPv6 supports considerably even more reserved addresses than IPv4. A range of IPv6 addresses is reserve for private addresses. Private addresses have a initially octet worth of FE in hexadecimal notation.
Transition Richness
There are a lot of techniques to integrate an IPv6 net into an current IPv4 net. The conversion from IPv4 to IPv6 does not have to be completed all at as soon as. 3 standard transition techniques are: 1. Dual stack, two. Tunneling, 3. Proxying and translation
In the dual stack IPv4 and IPv6 configurations are applied on a network appliance. Both protocol stacks run on the similar network device. This system allows IPv4 and IPv6 to reside together.
Tunneling is a technique that is becoming much more widely used as the acceptance of IPv6 grows. Tunneling is the encapsulation of 1 protocol packet within a different protocol. For instance, an IPv6 packet can be encapsulated within an IPv4 protocol.
Some network devices may well contain a Network Address Translation-Protocol. This translation permits direct communication amongst network devices that use numerous versions of the IP protocol.
If you want to configure a router to locally resolve host names to IPv6 addresses, use the ipv6 hostname ipv6addr command. To configure an external DNS server to resolve IPv6 addresses, use the ip name-serveraddress command. Enabling name resolution on a network device assists the administrator to access other devices on the network by name. It does not disturb the operation of the router and does not advertise this DNS server name to DHCP clients.
Hope you got the fundamentals of this protocol cleared up.
