Mastering Kali Linux for Advanced Penetration Testing - Third Edition
by Vijay Kumar Velu, Robert Beggs
IPv6
Although IPv4 seems to permit a large address space, freely available IP addresses were exhausted several years ago, forcing the employment of NAT to increase the number of available addresses. A more permanent solution has been found in the adoption of an improved IP addressing scheme, IPv6. Although it constitutes less than five percent of internet addresses, its usage is increasing, and penetration testers must be prepared to address the differences between IPv4 and IPv6.
In IPv6, the source and destination addresses are 128-bits in length, yielding 2128 possible addresses, that is, 340 undecillion addresses!
The increased size of the addressable address space presents some problems to penetration testers, particularly when using ...
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