问答题
在网关计算机/etc/sysconfig/network-scripts/目录中有以下文件，运行某命令可以启动网络，该命令是(9)，其命令行参数是(10)。
ifcfg-eth0 ifup ifup-sit
ifcfg-lo ifup-aliases ifup-si
ifdown ifup-cipcb ifup-wireless
ifdown-aliases ifup-ippp init.Ipv6-global
ifdown-cipcb ifup-ipv6 network-functions
ifdown-ippp ifup-ipx network-functions-ipv6
ifdown-ipv6 ifup-isdn
ifdown-isdn ifup-plip
ifdown-post ifup-plusb
ifdown-ppp ifup-post
ifdown-sit ifup-PPP
ifdown-sl ifup-routes
(9)ifup (10)网络接口(或设备)名称(或eth0或eth1)