推荐回答(3个)
前三条是自动生成的,因为是直连的网段,在每块网卡上每配置一个IP就会生成一条记录,由于在eth1上设置了两个IP所以有三条记录
意识是去往这几个网段的数据包,直接由接口eth0及eth1进行处理
192.168.0.0 10.77.238.254 255.255.0.0 UG 0 0 0 eth0
去住192.168.0.0网段的数据包由10.77.238.254通过eth0来转发
10.0.0.0 10.77.238.254 255.0.0.0 UG 0 0 0 eth0
去住10.0.0.0网段的数据包由10.77.238.254通过eth0来转发
0.0.0.0 122.228.238.254 0.0.0.0 UG 0 0 0 eth1
其它所有数据包由122.228.238.254通过通过eth1来转发
-- Route命令的正确用法
使用 Route 命令行工具查看并编辑计算机的 IP 路由表。Route 命令和语法如下所示:
route [-f] [-p] [Command [Destination] [mask Netmask] [Gateway] [metric Metric]] [if Interface]]
-f 清除所有网关入口的路由表。
-p 与 add 命令一起使用时使路由具有永久性。
Command 指定您想运行的命令 (Add/Change/Delete/Print)。
Destination 指定该路由的网络目标。
mask Netmask 指定与网络目标相关的网络掩码(也被称作子网掩码)。
Gateway 指定网络目标定义的地址集和子网掩码可以到达的前进或下一跃点 IP 地址。
metric Metric 为路由指定一个整数成本值标(从 1 至 9999),当在路由表(与转发的数据包目标地址最匹配)的多个路由中进行选择时可以使用。
if Interface 为可以访问目标的接口指定接口索引。若要获得一个接口列表和它们相应的接口索引,使用 route print 命令的显示功能。可以使用十进制或十六进制值进行接口索引。
/? 在命令提示符处显示帮助。
示例
若要显示 IP 路由表的全部内容,请键入:
route print
若要显示以 10. 起始的 IP 路由表中的路由,请键入:
route print 10.*
若要添加带有 192.168.12.1 默认网关地址的默认路由,请键入:
route add 0.0.0.0 mask 0.0.0.0 192.168.12.1
若要向带有 255.255.0.0 子网掩码和 10.27.0.1 下一跃点地址的 10.41.0.0 目标中添加一个路由,请键入:
route add 10.41.0.0 mask 255.255.0.0 10.27.0.1
若要向带有 255.255.0.0 子网掩码和 10.27.0.1 下一跃点地址的 10.41.0.0 目标中添加一个永久路由,请键入:
route -p add 10.41.0.0 mask 255.255.0.0 10.27.0.1
若要向带有 255.255.0.0 子网掩码、10.27.0.1 下一跃点地址且其成本值标为 7 的 10.41.0.0 目标中添加一个路由,请键入:
route add 10.41.0.0 mask 255.255.0.0 10.27.0.1 metric 7
若要向带有 255.255.0.0 子网掩码、10.27.0.1 下一跃点地址且使用 0x3 接口索引的 10.41.0.0 目标中添加一个路由,请键入:
route add 10.41.0.0 mask 255.255.0.0 10.27.0.1 if 0x3
若要删除到带有 255.255.0.0 子网掩码的 10.41.0.0 目标的路由,请键入:
route delete 10.41.0.0 mask 255.255.0.0
若要删除以 10. 起始的 IP 路由表中的所有路由,请键入:
route delete 10.*
若要将带有 10.41.0.0 目标和 255.255.0.0 子网掩码的下一跃点地址从 10.27.0.1 修改为 10.27.0.25,请键入:
route change 10.41.0.0 mask 255.255.0.0 10.27.0.25
route用于显示或改动routing table, -n用数字而不是名称。
第一栏(destination)是目的地, 第二栏(gateway)是去该目的地所用的router(0.0.0.0应当表示defaulte router即default gateway), 第三栏是netmask, 第四栏是状态, U: up; G: gateway; 最后一栏是所用网卡(interface)
加上那两条的作用是: 去10.7.239.0和10.77.238.0时, 都用default router, 而且是用eth0.
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