How does an IPv6 router deal with a packet that is larger than the outgoing interface MTU?
A.
It will fragment the packet at Layer 2.
B.
It will fragment the packet at Layer 3.
C.
It will drop the packet and send an ICMPv6 message “packet too big” back to the source.
D.
It will drop the packet.
Explanation:
Routers do not fragment IPv6 packets, as they do for IPv4. When a router receives a packet that is
too big for the MTU of the forwarding path, the intermediate mode must drop the packet and send
an ICMPv6 “packet too big” back to the source node.