静态NAT的cisco路由器的配置,正确的指令是()
A.ip nat inside source static 192.168.0.3 211.139.250.234 B.ip nat inside source static 192.168.0.3 255.255.255.248 211.139.250.234 C.ip nat inside source static 192.168.0.3 211.139.250.234 255.255.255.248 D.ip nat inside source static 211.139.250.234 192.168.0.3