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You are configuring a 6to4 tunnel. You want to translate the IPv4 address 192.168.50.4 to the IPv6 address for

You are configuring a 6to4 tunnel. You want to translate the IPv4 address 192.168.50.4 to the IPv6 address for the tunnel.

What would be the correct translation?

A. 2002:c0a8:3204::/16
B. 2002:c0a8:9901::/48

C. 2002:c0a8:3204::/48

D. c0a8:3204:2002::/16

Explanation:
When implementing an automatic 6to4 tunnel, each IPv6 site receives a /48-bit prefix. The hexadecimal equivalent of the IPv4 address of the edge router is appended to 0x2002 and followed with the prefix to identify each end of the tunnel. In this case, if the edge router’s IPv4 address were 192.168.50.4, the hexadecimal equivalent of the address (c0a8:3204) would be inserted between 0X2002 and the /48 prefix, resulting in 2002:c0a8:3204::/48 to arrive at the tunnel endpoint address.

The correct address would not be 2002:c0a8:3204::/16. The prefix is 48, not 16.

The correct address would not be 2002:c0a8:9901::/48. The hexadecimal equivalent of the address 192.168.50.4 is c0a8:3204, not c0a8:9901.

The correct address would not be c0a8:3204:2002::/16. It has an incorrect prefix (/16) and the values in the other sections are out of order.

Objective:
Network Principles
Sub-Objective:
Recognize proposed changes to the network

References:
Cisco IPv6 Implementation Guide, Release 15.2M&T > Implementing Tunneling for IPv6 > Implementing Tunneling for IPv6 > Configuration Examples for Implementing Tunneling for IPv6


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