Which IPv6 migration method relies on dynamic tunnels that use the 2002::/16 reserved address space?

A. GRE
B. 6RD
C. 6to4
D. ISATAP

Correct Answer: C

Which IPv6 migration method relies on dynamic tunnels that use the 2002::/16 reserved address space?

A. GRE
B. 6RD
C. 6to4
D. ISATAP

Correct Answer: C

6to4 tunnel is a technique which relies on reserved address space 2002::/16 (you must remember this range). These tunnels determine the appropriate destination address by combining the IPv6 prefix with the globally unique destination 6to4 border router’s IPv4 address, beginning with the 2002::/16 prefix, in this format:

2002:border-router-IPv4-address::/48

For example, if the border-router-IPv4-address is 64.101.64.1, the tunnel interface will have an IPv6 prefix of 2002:4065:4001:1::/64, where 4065:4001 is the hexadecimal equivalent of 64.101.64.1.