1. IPv6

2. What is an IP address?  Each host on a TCP/IP network is uniquely identified at the IP layer with an address.  An Internet Protocol (IP) address specifies the location of a host or client on the Internet.  The IPv4 address is 32 bits long  The IPv6 address is 128 bit long

3. Why IPv6 No more room in IPv4 addresses

4. IPv4 Exhaustion Counter (IANA) IPv4 Exhaustion Counter (IANA) source http://inetcore.com/project/ipv4ec/index_en.html

5. Large Address Space IPv6 can provide 340,282,366,920,938,463,463,374,607,431,770,000,000 addresses

6. Efficient & Fast Routing IPv6IPv4

7. PLUG & PLAY BY AUTOCONFIGURATION

8. Easy Mobility

9. End to End Security

10. IPv4 & IPv6 Header Comparison VersionIHLType of ServiceTotal Length IdentificationFlags Fragment Offset Time to LiveProtocolHeader Checksum Source Address Destination Address OptionsPadding VersionTraffic ClassFlow Label Payload Length Next Header Hop Limit Source Address Destination Address IPv4 Header Header IPv6 Header - field’s name kept from IPv4 to IPv6 - fields not kept in IPv6 - Name & position changed in IPv6 - New field in IPv6

11. IPv6 Addressing Address Types are :  Unicast : One to One (Global, Link local, Site local, Compatible)  Anycast : One to Nearest (Allocated from Unicast)  Multicast : One to Many

12. IPv6 Addressing  16-bit fields in case insensitive colon hexadecimal representation 2031:0000:130F:0000:0000:09C0:876A:130B  Leading zeroes in a field are optional: 2031:0:130F:0:0:9C0:876A:130B  Successive fields of 0 represented as ::, but only once in an address: 2031:0:130F::9C0:876A:130B 2031::130F::9C0:876A:130B 0:0:0:0:0:0:0:1 => ::1 0:0:0:0:0:0:0:0 => ::  IPv4-compatible address representation 0:0:0:0:0:0:192.168.30.1 = ::192.168.30.1 = ::C0A8:1E01

13. Global, Link local & Site local

15. Global Address

16. Link Local Address

17. IPv6 Anycast  With IPv6 Anycast one IP address can be given to more than one device.  Anycast address can be assigned from Unicast address space.  Anycast can be act as redundancy protocol.

18. IPv6 Anycast