By Silvia Hagen
In case your association is gearing up for IPv6, this in-depth booklet offers the sensible info and tips you must plan for, layout, and enforce this greatly more suitable protocol. writer Silvia Hagen takes approach and community directors, engineers, and community designers in the course of the technical information of IPv6 good points and services, and offers concepts in the event you have to combine IPv6 with their present IPv4 infrastructure.
The flood of Internet-enabled units has made migrating to IPv6 a paramount challenge all over the world. during this up-to-date variation, Hagen distills greater than ten years of learning, operating with, and consulting with agencies on IPv6. It’s the single ebook of its kind.
IPv6 necessities covers:
Address structure, header constitution, and the ICMPv6 message format
IPv6 mechanisms comparable to Neighbor Discovery, Stateless handle autoconfiguration, and copy handle detection
Network-related points and prone: Layer 2 help, higher Layer Protocols, and Checksums
IPv6 defense: common practices, IPSec fundamentals, IPv6 safeguard parts, and firm protection models
Transitioning to IPv6: dual-stack operation, tunneling, and translation techniques
Mobile IPv6: know-how for a brand new new release of cellular services
Planning recommendations, integration eventualities, deal with plan, most sensible practices, and dos and don’ts
Read or Download IPv6 Essentials: Integrating IPv6 into Your IPv4 Network (3rd Edition) PDF
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Extra resources for IPv6 Essentials: Integrating IPv6 into Your IPv4 Network (3rd Edition)
Sample text
Figure 2-3 shows the format of both these addresses. Figure 2-3. Format of IPv6 addresses with an embedded IPv4 address The two addresses are pretty much the same. The only difference is the 16 bits in the middle. When they are set to 0, the address is an IPv4-compatible IPv6 address; if these bits are set to 1, it is an IPv4-mapped IPv6 address. Special Addresses | 29 6to4 Addresses The IANA has permanently assigned a 13-bit TLA identifier for 6to4 operations within the global unicast address range (001).
Make sure to choose hardware that supports performance IPv6 routing. In the meantime, you can tunnel your IPv6 packets over the IPv4 backbone. Networks that use MPLS have an easy way to tunnel IPv6 packets over their IPv4 MPLS backbone. Read more about it in Chapter 7. More and more organizations are considering migrating their backbone and data centers to IPv6 only with the next refresh or redesign cycle, because it substantially reduces operational cost. In this scenario we will start to tunnel IPv4 packets over IPv6 backbones.
It is therefore advisable to integrate the new protocol carefully and in a nondisruptive manner, by taking one step at a time to prepare the infrastructure for these new services. This protects you from having to introduce a business-critical application based on IPv6 at unreasonably high cost with no time for thorough planning. Why Do We Need IPv6? ” When talking to customers, we often find that they share a similar set of mis‐ conceptions preventing them from considering IPv6. ” This concern is unsubstantiated.