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.
正确答案:C
答案解析:有
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