Which of the commands below can you use to configure a default route?（）
- A、TK1(config)# ip route 0.0.0.0 0.0.0.0 E0
- B、TK1(config)# ip route 0.0.0.0 255.255.255.255 S0
- C、TK1(config-interface)# ip route 255.255.255.255 0.0.0.0 192.168.1.21
- D、TK1(config)# ip route 0.0.0.0 0.0.0.0 192.168.1.21
- E、TK1(config)# ip route 0.0.0.0 192.168.1.21 255.255.255.255
- F、TK1# ip default-network 0.0.0.0 192.168.1.21 255.255.255.255
正确答案:A,D
答案解析:有
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