September 2016
Intermediate to advanced
1152 pages
47h 48m
English
Content preview from Routing TCP/IP, Volume II: CCIE Professional Development, Second EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 11. IPv6 to IPv4 Network Address Translation (NAT64)
The last chapter covered NAT44, in which the source or destination or both IPv4 address fields in a packet are rewritten to a different address. This chapter continues the concept of packet translation but takes it to a higher level of complexity. Instead of just changing an IP address in a packet’s source or destination address field, the mechanisms discussed in this chapter also remove the entire header of an IP packet and replace it with a different header—an IPv4 header is replaced with an IPv6 header, or vice versa. The purpose is to provide a translation service between IPv4 and IPv6 devices.
As this book is being written, we are in the early transitional phase from IPv4 to IPv6. ...
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