If the Ethernet frame shows Ethertype 0x86dd, which protocol is being carried?

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Multiple Choice

If the Ethernet frame shows Ethertype 0x86dd, which protocol is being carried?

Explanation:
The Ethertype in an Ethernet frame tells you what protocol is carried in the payload. A value of 0x86dd is the dedicated Ethertype for IPv6, so the bytes that follow form an IPv6 packet (starting with the IPv6 header). If it were IPv4, you’d see 0x0800; ARP uses 0x0806; MPLS unicast uses 0x8847. So the frame is carrying IPv6.

The Ethertype in an Ethernet frame tells you what protocol is carried in the payload. A value of 0x86dd is the dedicated Ethertype for IPv6, so the bytes that follow form an IPv6 packet (starting with the IPv6 header). If it were IPv4, you’d see 0x0800; ARP uses 0x0806; MPLS unicast uses 0x8847. So the frame is carrying IPv6.

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