配置loopback 1端口的IP地址( ) A、A、R1#interfaceloopback1R1#ipaddress10.0.0.5B、A、R1#interfaceloopback1R1#ipaddress10.0.0.50.0.0.0C、R1#interfaceloopback1R1#ipaddress10.0.0.5255.255.255.0D、A、R1#interfaceloopback1R1#ipaddress10.0.0.0255.255.255.0 发布时间:2025-07-03 20:26:24