filed in CCNA, CCNA Security, IPv6 on Mar.08, 2009
The next generation of internet expanded address format will use IP version six (Ipv6) which is currently being used in some test and early adopter networks.
An IP addressing scheme that uses a 128-bit address, which allows a total of 340 billion billion billion billion unique addresses. IPv6 offers many benefits, but it requires a major [...]
filed in IPv6 on Feb.24, 2009
A regional Internet registry (RIR) is an organization overseeing the allocation and registration of Internet number resources within a particular region of the world. Resources include IP addresses (both IPv4 and IPv6) and autonomous system numbers (for use in BGP routing).
OR
The Internet Assigned Numbers Authority (IANA) delegates Internet resources to the RIRs who, in turn, [...]
filed in IPv6 on Feb.15, 2009
IPV4:
IPv4 addresses are represented in dotted-decimal format.
32-bit address is divided along 8-bit boundaries.
Each set of 8 bits is converted to its decimal equivalent and separated by periods.
IPV6:
For IPv6, the 128-bit address is divided along 16-bit boundaries
Each 16-bit block is converted to a 4-digit hexadecimal number and separated by colons.
IPv6 Unicast:
This is similar to the [...]
filed in IPv6 on Jan.17, 2009
Addresses are assigned to interfaces
No change from IPv4 Model
Interface can have multiple addresses
Addresses have scope
Link Local
Site Local
Global
Addresses have lifetime
Valid and Preferred lifetime
Self Configurations of workstations
Security Features
Support Mobile workstations
Backward Comptiablity with IPv4
End-to-End security Model
Protects DHCP
Protects DNS
Protects IPv6 Mobility
Protects End-to-End traffic over IPv4 networks
Larger Address Space
Efficient and Extensible IP datagram
Efficient Route Computation and Aggregation
Improved Host and Router [...]