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IPv6 Configuration• The local-link IPv6 address is constructedautomatically by concatenating FE80 with InterfaceID as soon as IPv6 is enabled on the interface eitherby assigning an IPv6 address or simply by enteringthe commandRouter(config-if)# ipv6 enableRST-130012394_04_2006_c2© 2006 Cisco Systems, Inc. All rights reserved. Cisco Public56
IPv6 ConfigurationRouter#conf tRouter(config)#int fastEthernet 0/0Router(config-if)#ipv6 enableRouter#show ipv6 interface fastEthernet 0/0FastEthernet0/0 is up, line protocol is upIPv6 is enabled, link-local address is FE80::205:5FFF:FED3:6808No global unicast address is configuredJoined group address(es):FF02::1FF02::2FF02::1:FFD3:6808MTU is 1500 bytesICMP error messages limited to one every 100 millisecondsICMP redirects are enabledND DAD is enabled, number of DAD attempts: 1ND reachable time is 30000 millisecondsND advertised reachable time is 0 millisecondsND advertised retransmit interval is 0 millisecondsND router advertisements are sent every 200 secondsND router advertisements live for 1800 secondsHosts use stateless autoconfig for addresses.RST-130012394_04_2006_c2© 2006 Cisco Systems, Inc. All rights reserved. Cisco Public57
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IPv6 ConceptsRST-1300RST-130012394_
Page 3 and 4:
A Need for IPv6?• IETF IPv6 WG be
Page 5 and 6: A Need for IPv6?• Transportation
Page 7 and 8: Coming Back to an End-to-End Archit
Page 9 and 10: IP—The Application’s Convergenc
Page 11 and 12: IPv6 Features• Larger address spa
Page 14 and 15: The Chain of Pointers Formed by the
Page 16 and 17: MTU Issues• Minimum link MTU for
Page 18 and 19: Larger Address SpaceIPv4 = 32 BitsI
Page 20 and 21: AddressingPrefix Representation•
Page 22 and 23: Addressing• Some special addresse
Page 24 and 25: Aggregatable Global Unicast Address
Page 26 and 27: Hierarchical Addressing and Aggrega
Page 28 and 29: IPv6 Interface Identifier• Cisco
Page 30 and 31: Conversion of an IEEE 802 Address t
Page 33 and 34: Link-Local128 BitsRemaining 54 Bits
Page 35 and 36: IPv6 Multicast Address• The multi
Page 37 and 38: Solicited-Node Multicast Address•
Page 39 and 40: AnycastAnycast Address Assignment
Page 41 and 42: ICMPv6• Internet Control Message
Page 43 and 44: Neighbor Discovery• Replaces ARP,
Page 45 and 46: Neighbor DiscoveryRouter Solicitati
Page 47 and 48: Neighbor Solicitation• Send to di
Page 49 and 50: Neighbor Solicitation and Advertise
Page 51 and 52: RedirectABR2R12001:db8:C18:2::/64Sr
Page 53 and 54: RenumberingMac Address:00:2c:04:00:
Page 55: IPv6 Configuration• In order to e
Page 59 and 60: Cisco IOS Standard Access ListsWhen
Page 61 and 62: Troubleshooting Access-ListsRouter#
Page 63 and 64: Static RoutingRST-130012394_04_2006
Page 65 and 66: Default Routing ExampleIPv6 Interne
Page 67 and 68: Enhanced Routing Protocol SupportRI
Page 69 and 70: DeploymentRST-130012394_04_2006_c2
Page 71 and 72: Dual Stack ApproachApplicationIPv6-
Page 73 and 74: Cisco IOS Dual Stack ConfigurationI
Page 75 and 76: TunnelingMany Ways to Do Tunneling
Page 77 and 78: IPv6 over IPv4 TunnelsIPv6 HeaderIP
Page 79 and 80: Automatic 6to4 Tunnels• Automatic
Page 81 and 82: Automatic 6to4 Tunnel (RFC 3056)S=2
Page 83 and 84: Automatic 6to4 RelayIPv6InternetIPv
Page 85 and 86: Automatic 6to4 TunnelsRequirements
Page 87 and 88: Intrasite Automatic Tunnel AddressP
Page 89 and 90: Automatic Advertisement of ISATAP P
Page 91 and 92: Automatic Configuring ISATAPISATAP
Page 93 and 94: Q and ARST-130012394_04_2006_c2© 2
Page 95 and 96: Recommended Reading• Continue you
Page 97: RST-130012394_04_2006_c2© 2006 Cis
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