December 2019
Beginner
510 pages
12h 7m
English
Content preview from Networking Fundamentals
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Global unicast address
An IPv6 global unicast address is similar to a public IP address in IPv4, in that it is routable across the internet. Because there are so many available IPv6 addresses, it is feasible that every device can have its own global unicast address. This means that Network Address Translation (NAT) is not required, although this has not been well-received by all network administrators who appreciate the added security NAT provides.
Global unicast addresses all begin with 2000::/3, and the address is broken down into parts:
Figure 12.1: Breakdown of a global unicast address
The first 23 bits identify the registry that controls ...
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