IPv6 News

6to4 is an address assignment and router-to-router automatic tunneling technology that is used to provide unicast IPv6 connectivity between IPv6 sites and hosts across the IPv4 Internet. 6to4 is described in RFC 3056. 6to4 uses the global address p…

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To coexist with an IPv4 infrastructure and to provide eventual migration to an IPv6-only infrastructure, the following mechanisms are used: Dual IP layer IPv6 over IPv4 tunneling DNS infrastructure Dual IP Layer: The dual IP layer is an impl…

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Like IPv4, the specification for the IPv6 header and extension headers does not provide facilities for reporting errors. Instead, IPv6 uses an updated version of the Internet Control Message Protocol (ICMP) named ICMP version 6 (ICMPv6). ICMPv6 has…

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In IPv4, multicast support is optional. In IPv6, multicast support is required. This section provides an overview of IPv6 multicast concepts. In addition to unicast and anycast support, IPv6 also provides a mechanism to send and receive IPv6 multic…

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Routing protocols are based either on a distance vector, link state, or path vector technology. Distance Vector: Distance vector routing protocols propagate routing information in the form of a network ID and its “distance” (hop count). Routers us…

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Protocol transitions are not easy and the transition from IPv4 to IPv6 is no exception. Protocol transitions are typically deployed by installing and configuring the new protocol on all nodes within the network and verifying that all host and router…

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The following addresses are defined to aid in the coexistence of IPv4 and IPv6 nodes: IPv4-compatible addresses: The IPv4-compatible address, 0:0:0:0:0:0:w.x.y.z or ::w.x.y.z (where w.x.y.z is the dotted decimal representation of a public IPv4 addr…

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