IPv6 OverView
OVERVIEW <ul><li>History </li></ul><ul><li>Enhanced </li></ul><ul><li>Terminology </li></ul><ul><li>Simulation </li></ul>
What ever happened to ipv5? 0 IP March 1977 version    (deprecated) 1 IP January 1978 version    (deprecated) 2 IP Februar...
Explosion of New Internet Appliances
IPV6 <ul><li>IPng </li></ul><ul><li>128 bit = 2 128   = 3.4 x 10 38 </li></ul><ul><li>IETF    RFC 1752 </li></ul><ul><li>...
IPv4 & IPv6 Header Comparison
Addressing
Address Allocation <ul><li>The allocation process was recently updated  by the registries :  </li></ul><ul><ul><li>IANA al...
Address Allocation (Con’t)
Some Terminology <ul><li>node a protocol module that implements IPv6 </li></ul><ul><li>router a node that forwards IPv6 pa...
Types of IPv6 Addresses <ul><li>Unicast </li></ul><ul><ul><li>One address on a single interface </li></ul></ul><ul><ul><li...
IPv6 - Addressing Model
IPv6 Support <ul><li>ICMPv6 </li></ul><ul><li>Neigboring discovery </li></ul><ul><li>Compatibility to IPv4 </li></ul>
ICMP IPv6 <ul><li>Format </li></ul>Type 0 – 127  : Error Message 128 – 255  : Informational Message
ICMP IPv6
<ul><li>Format data PC A to C : </li></ul>
<ul><li>Respon from C </li></ul>
Neighbor Discovery
IPv4-Compatible IPv6 Addresses 0:0:0:0:0:10:10:100:16 ::10:10:100:16 ::A:A:64:10
Tunnel Mode
 
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I Pv6

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  • Ericsson ID 2009
  • Ericsson ID 2009
  • Ericsson ID 2009 The generic allocation process is: IANA allocates 2001::/16 to registries from the full address space Slow-start allocation process: Each registry gets a /23 prefix from IANA, within the 2001::/16 space Registry allocates an initial /35 prefix to a new IPv6 ISP ISP allocates a /48 prefix (out of the /35) to each customer The slow-start allocation process is there to minimize the initial space given to an ISP. This enforces the conservation of addresses. Cisco managed to receive a /35 prefix: 2001:0420::/35.
  • Ericsson ID 2009
  • Ericsson ID 2009
  • I Pv6

    1. 1. IPv6 OverView
    2. 2. OVERVIEW <ul><li>History </li></ul><ul><li>Enhanced </li></ul><ul><li>Terminology </li></ul><ul><li>Simulation </li></ul>
    3. 3. What ever happened to ipv5? 0 IP March 1977 version (deprecated) 1 IP January 1978 version (deprecated) 2 IP February 1978 version A (deprecated) 3 IP February 1978 version B (deprecated) 4 IPv4 September 1981 version (current widespread) 5 ST Stream Transport (not a new IP, little use) 6 IPv6 December 1998 version (formerly SIP, SIPP) 7 CATNIP IPng evaluation (formerly TP/IX; deprecated) 8 Pip IPng evaluation (deprecated) 9 TUBA IPng evaluation (deprecated) 10-15 unassigned
    4. 4. Explosion of New Internet Appliances
    5. 5. IPV6 <ul><li>IPng </li></ul><ul><li>128 bit = 2 128 = 3.4 x 10 38 </li></ul><ul><li>IETF  RFC 1752 </li></ul><ul><li>Why: </li></ul><ul><li>Solving NAT </li></ul><ul><li>Unix, prefix hierarchy  Routing Table more efficient </li></ul><ul><li>Auto Renumbering </li></ul><ul><li>IPsec </li></ul><ul><li>QoS guarantee (Flow Label) </li></ul><ul><li>ARP  Neighbor discovery </li></ul><ul><li>Compatible with IPv4 </li></ul>
    6. 6. IPv4 & IPv6 Header Comparison
    7. 7. Addressing
    8. 8. Address Allocation <ul><li>The allocation process was recently updated by the registries : </li></ul><ul><ul><li>IANA allocates from 2001::/16 to regional registries </li></ul></ul><ul><ul><li>Each regional registry allocation is a ::/23 </li></ul></ul><ul><ul><li>ISP allocations from the regional registry is a ::/3 6 (immediate allocation) or ::/32 (initial allocation) or shorter with justification </li></ul></ul><ul><ul><li>Policy expectation that an ISP allocates a ::/48 prefix to each customer </li></ul></ul>2001 0410 ISP prefix Site prefix Subnet prefix /32 /48 /64 Registry /23 Interface ID 1234:5678:9ACB:DEF0:1234:5678:9ABC:DEF0
    9. 9. Address Allocation (Con’t)
    10. 10. Some Terminology <ul><li>node a protocol module that implements IPv6 </li></ul><ul><li>router a node that forwards IPv6 packets not explicitly addressed to itself </li></ul><ul><li>host any node that is not a router </li></ul><ul><li>link a communication facility or medium over which nodes can communicate at the link layer, i.e., the layer immediately below IPv6 </li></ul><ul><li>neighbors nodes attached to the same link </li></ul><ul><li>interface a node’s attachment to a link </li></ul><ul><li>address an IPv6-layer identifier for an interface or a set of interfaces </li></ul>
    11. 11. Types of IPv6 Addresses <ul><li>Unicast </li></ul><ul><ul><li>One address on a single interface </li></ul></ul><ul><ul><li>Delivery to single interface </li></ul></ul><ul><li>Multicast </li></ul><ul><ul><li>Address of a set of interfaces </li></ul></ul><ul><ul><li>Delivery to all interfaces in the set </li></ul></ul><ul><li>Anycast </li></ul><ul><ul><li>Address of a set of interfaces </li></ul></ul><ul><ul><li>Delivery to a single interface in the set </li></ul></ul><ul><li>No broadcast addresses </li></ul>
    12. 12. IPv6 - Addressing Model
    13. 13. IPv6 Support <ul><li>ICMPv6 </li></ul><ul><li>Neigboring discovery </li></ul><ul><li>Compatibility to IPv4 </li></ul>
    14. 14. ICMP IPv6 <ul><li>Format </li></ul>Type 0 – 127 : Error Message 128 – 255 : Informational Message
    15. 15. ICMP IPv6
    16. 16. <ul><li>Format data PC A to C : </li></ul>
    17. 17. <ul><li>Respon from C </li></ul>
    18. 18. Neighbor Discovery
    19. 19. IPv4-Compatible IPv6 Addresses 0:0:0:0:0:10:10:100:16 ::10:10:100:16 ::A:A:64:10
    20. 20. Tunnel Mode

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