1. Compare and contrast the IPv4 and the IPv6 header fields. Do they have any fields in common? 2. It has been said that when IPv6 tunnels through IPv4 routers, IPv6 treats the IPv4 tunnels as...

1. Compare and contrast the IPv4 and the IPv6 header fields. Do they have any fields in common?

2. It has been said that when IPv6 tunnels through IPv4 routers, IPv6 treats the IPv4 tunnels as link-layer protocols. Do you agree with this statement? Why or why not?