What type of payload is carried inside a Teredo tunnel's UDP encapsulation?

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Multiple Choice

What type of payload is carried inside a Teredo tunnel's UDP encapsulation?

Explanation:
The payload inside a Teredo tunnel’s UDP encapsulation is IPv6 packets. Teredo tunnels IPv6 datagrams over IPv4 networks by putting them inside UDP packets (outer IPv4/UDP headers). So what you see inside the UDP payload is an IPv6 packet, which could be unicast or multicast as part of the IPv6 traffic. It’s not IPv4, not IPv6 over TCP, and the distinction isn’t about multicast being the payload type—the inner content is simply IPv6.

The payload inside a Teredo tunnel’s UDP encapsulation is IPv6 packets. Teredo tunnels IPv6 datagrams over IPv4 networks by putting them inside UDP packets (outer IPv4/UDP headers). So what you see inside the UDP payload is an IPv6 packet, which could be unicast or multicast as part of the IPv6 traffic. It’s not IPv4, not IPv6 over TCP, and the distinction isn’t about multicast being the payload type—the inner content is simply IPv6.

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