Appendix C. Answers to Review Questions
Chapter 1
1. Access to IPv6-only customers: Some networks will be accessible only via IPv6.
IPv4 address depletion: Four out of five RIRs have run out of IPv4 addresses. For the Internet to continue to evolve and grow, it is necessary to transition to IPv6.
Better performance: NAT creates latency. Some content providers are seeing better performance with IPv6.
Securing your current network: Host operating systems are already IPv6-enabled. If your network is not secured for IPv6, it is vulnerable to IPv6 MITM and DoS attacks.
2. They implemented CIDR, NAT, and private RFC 1918 IPv4 addressing.
3. NAT devices must perform IPv4, TCP, and UDP checksum recalculations.
IPv4 addresses within the ICMP payload ...
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