IPv6 for Enterprise Networks (Networking Technology)

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2017 North American IPv6 Summit [SLIDESHARE] Network architecture considerations in light of IPv6

If you already know all this, you can skip this chapter. IPv4 and IPv6 will probably coexist for quite some time yet, and here is your chance to learn about the mechanisms that will allow them to do it without creating problems for the users. Also very handy is a chapter on network services, that answers the question of how to use and configure multicast, QoS and routing with IPv6, by comparing the process to that in IPv4.

The chapter on planning and IPv6 development is a must — it tells you how to decide where to begin by doing some benefit, risks and cost analysis, and how to plan and execute a pilot phase of the deployment so that you can experiment addressing internally. These chapters are extremely technical and make the most valuable part of the book.

IPv6 deployment guide

They effectively translate all those IPv6 concepts into usable configurations complete with a list of benefits and drawbacks of each of the topologies presented. Each of these modules have their specific idiosyncrasies, and each is thoroughly examined. In the end, you will be able to learn how to manage and monitor the modules effectively with a string of applications and tools helpfully presented here. IPv6 for Enterprise Networks is an easy-to-read book and very thorough in its explanations.

The authors have recognized the fact that the most difficult part for projects of this size is to choose an appropriate starting point, and have offered a constructive chapter on how to do that.

Google IPv6 Implementors Conference 2010: Content Networks and Enterprise Networks

The technical chapters are also very detailed and extensive, making this book a handy tome for anyone that is charged with ushering the corporate network into the age of IPv6. Department of Defense owns several large ranges in fairness, it was paying for it all, early on. In the early days, before the scarcity of addresses was appreciated, it was extremely easy to reserve large blocks of addresses. In recent years, most of these massive allocations to private bodies have been surrendered, at least in part, to the regional Internet registries.

Cisco Press :: IPv6 for Enterprise Networks - Fryguy's Blog

CIDR was introduced in the early s to make routing tables more efficient. You might recognize some of these:. IPv6 addresses have bits 16 bytes , greatly expanding the depth of address hierarchy and the overall number of addresses.

This is an address space so vast that we may just take it with us to the first few planets we colonize. IPv6 addressing architecture is defined in RFC There are a number of shortcuts that can usually save a few characters. It is common, as in this last address, to have consecutive fields with only zero bytes in them. IPv6 addresses are either unicast, anycast, or multicast. A unicast address is associated with exactly one interface, which usually means a network interface on a computer.

That interface may have many multiple unicast addresses associated with it. An anycast address is a set of interfaces; data sent to an anycast address is delivered to one of these interfaces, the "closest," according to the routing protocol.

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IPv4 has broadcast addresses. Data sent to the address is received by all addresses on the subnet.

In IPv6, this function is replaced by multicast addressing. A packet sent to a multicast address is delivered to all interfaces with that address.

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There are also special addresses. It is analogous to A packet sent to it is delivered back to the interface that sent it. Many efforts were made to ease the transition from IPv4 to IPv6 , but these things are never as easy as we would like. Where possible, the best mechanism is a dual-stack implementation, meaning to configure a device or interface to support both IP versions.

Networking With A Side of Snark

If the configuration has IPv6 as the preferred protocol, then it should be increasingly used as adoption of IPv6 increases generally. The day may come when the IPv4 address is extraneous; we should live so long. In the meantime, all important Internet protocols and almost all important application software support IPv6.

When all the other protocols on your networks are IPv6-enabled, which is the default on all modern operating systems , you can migrate the application layer. But NAT causes problems with some applications because it requires the router to change address and port fields in the packet headers. If there is a sufficient number of globally unique Internet addresses for an organization, NAT is unnecessary, although it still can be used on IPv6. Internet Protocol Security IPsec is a network-layer OSI Layer 3 protocol that allows two hosts to mutually authenticate and encrypt packet data using strong encryption.

It is the dominant protocol for virtual private networks VPNs. The original development work for IPsec was done for IPv6, but enough parties clamored for it and for the associated Internet Key Exchange IKE that they were back-ported to IPv4, on which they found widespread adoption.

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IPv6 for Enterprise Networks (Networking Technology) IPv6 for Enterprise Networks (Networking Technology)
IPv6 for Enterprise Networks (Networking Technology) IPv6 for Enterprise Networks (Networking Technology)
IPv6 for Enterprise Networks (Networking Technology) IPv6 for Enterprise Networks (Networking Technology)
IPv6 for Enterprise Networks (Networking Technology) IPv6 for Enterprise Networks (Networking Technology)
IPv6 for Enterprise Networks (Networking Technology) IPv6 for Enterprise Networks (Networking Technology)
IPv6 for Enterprise Networks (Networking Technology) IPv6 for Enterprise Networks (Networking Technology)
IPv6 for Enterprise Networks (Networking Technology) IPv6 for Enterprise Networks (Networking Technology)
IPv6 for Enterprise Networks (Networking Technology) IPv6 for Enterprise Networks (Networking Technology)

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