بسم الله الرحمن الرحیم
DESCRIPTION
بسم الله الرحمن الرحیم. ip V6. Why ip V6 . ip V4 Addressing. Ip v4 :: 32-bits :: :: written in dotted decimal :: :: 192.168.1.1 ::. ip V6 Addressing. Ip v6 :: 128-bits :: :: written in hexidecimal :: :: 2001:0000:0001:0002:0000:0000:0000:ABCD ::. - PowerPoint PPT PresentationTRANSCRIPT
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بسم الله الرحمن الرحیم
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ip V6
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Why ip V6
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ip V4 AddressingIp v4
:: 32-bits :::: written in dotted decimal ::
:: 192.168.1.1 ::
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ip V6 AddressingIp v6
:: 128-bits :::: written in hexidecimal ::
:: 2001:0000:0001:0002:0000:0000:0000:ABCD ::
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Simplifying an IPv6 Address:: 2001:0000:0001:0002:0000:0000:0000:ABCD
:1: 2001:0:1:2:0:0:0:ABCD True
:2: 2001::1:2:0:0:0:ABCD True
:3: 2001:0:1:2::ABCD True
:4: 2001::1:2::ABCD False
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Conventions for Writing IPv6 Prefixes:1:
2000:1234:5678:9ABC:1234:5678:9ABC:1111/64:2:
2000:1234:5678:9ABC:0000:0000:0000:0000/64:3: 2000:1234:5678:9ABC::/64
:4: 2000:1234:5678:9A00::/56
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IANAAssigns 2340::/12
ARIN (RIR)Owns
2340::/12
Assigns
2340:1111/32
NA-ISPICompany1 Assigns2340:1111:AAAA/48
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Assigning IPv6 Global Unicast AddressesStatef
ulDHCP Statel
essautoco
nfig
Static config
Static config with
EUI-64
Stateless
autoconfig
Static config
Static config with
EUI-64
=> Like DHCP-V4=>Track address => Using Multicast (FF00::/8)
ÞNetwork discovery protocol (NDP)
Perfix and default routeÞUsing EUI-64ÞStateless DHCP( DNS fro
ipv6 )
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EUI-64
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EUI-64 sampleMAC Address ::: 0034:5678:9ABC
interface ID ::: 0234:56FF:FE78:9ABC
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stateless autoconfiguration
1:: The host creates a link-local address 2:: It sends an NS (Neighbor Solicitation) message to its link-local address out the interface.3:: If there is no reply, DAD (Duplicate Address Discovery) declares the address unique.4:: If the host doesn’t receive an RA (Router Advertisements) , it sends an RS.5:: A router on the subnet sends an RA, listing its interface prefix.6:: The host uses that prefix and the interface MAC address to create its IPv6 address
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ip V6 Addressing Type
unicast Multic
ast
anycast
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UnicastLink local unicas
tglobal unicas
t
Unique
Local unicas
t
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UNIQUE LOCAL UNICAST8bits 40 bits 16bits 64 bits
‘FD’ + Global ID + Subnet + Interface ID
:: should not be advertised into the Internet ::
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LINK LOCAL UNICAST10bits 54 bits 64 bits
‘FE80’ + All 0s + Interface ID
:: help solve some chicken-and-egg problems ::
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What is that ::1/128 ??Loopback address
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Multicast AddressesAll IPv6 nodes on the link
-------------------------------------FF02::1All IPv6 routers on the link------------------------------------
FF02::2DHCP relay agents --------------------------------------------
FF02:1:2DHCP servers -------------------------------------------------
FF05::1:3All NTP servers -----------------------------------------------
FF05::101
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:: Larger address space :: :: No more need for NAT ::
:: Simpler header for increased router efficiency :::: No more broadcasts ::
:: Stateless autoconfiguration :: :: Built-in support for Mobile IP ::
:: Built-in support for IPsec security:::: Easy IP address renumbering ::
:: Capability to have multiple addresses per interface :: :: Routers create link-local addresses for use by IGPs ::
:::::NOTICE:::::Routers that straddle the IPv4 and IPv6 worlds encapsulate IPv6 traffic inside IPv4 packets !!!
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CISCO CC
NACCAR
CCIE
CCDP
CCNProut
e
CCNP
switch
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THE END