Which three are characteristics of IPv6?（）
- A、An IPv6 address is 128 bits long.
- B、An IPv6 header contains the header checksum field.
- C、An IPv6 header is 20 bits long.
- D、An IPv6 header contains the next header field.
- E、IPv6 route rs send RA messages.
- F、An IPv6 header contains the protocol field.
正确答案:A,D,E
答案解析:有
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