What are four advantages to using tunnel brokers in an IPv6 transition environment?（）
- A、Tunnel brokers automatically provide configuration parameters to peer routers.
- B、IPv6 enabling a node looks automatic to the end user.
- C、Tunnel information is sent via IPv4.
- D、Tunnel brokers make it simpler for nontechnical users to deploy manual tunnels.
正确答案:A,B,C,D
答案解析:有
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