UBUNTU双线策略-完整

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1、UBUNTUserver10.10liunx系统通过版服务器电信、联通双线接入加上内网三线接入服务器环境如下：IBM服务器,共有4个网卡;操作系统：ubuntu・10.10・server接入内网、电信和联通的IP,信息如下内网：168.168.168.96电信(TEL)IP：125.91.219.252;子网掩码：255.255.255.248;网关:125.91.219.249联通(CNC)IP:120.81.225.31;子网掩码:255.255.255.0;网关:120.81.225.1操作步骤如下1、配置网卡信息运彳亍命令sudovim/etc/network/interface

2、s把里面的配遥修改为如卜autoIoifaceIoinetloopbackautoethOifaceethOinetstaticaddress168.168.168.96netmask255.255.255.0ifaceethlinetstaticaddress120.81.225.31netmask255.255.255.0autoethlifaceeth2inetstaticaddress125.91.219.252netmask255.255.255.248gateway125.91.219.249autoeth2保存配置信息并且得启网卡sudo/etc/init.d/networ

3、kingrestart2、增加电信tel和联通cnc的路山表先查看一下路由表的信息cat/etc/iproute2/rt_tables里面已经显示了部分路由信息，在他的后Ifli加上下面2句，保存退出252tel251cnc3、增加路由规则，运行下面6个命令，前3个是设置电信网关，让电信的数据从eth2网卡走，后3个是设置联通网关，让数据从ethl走#sudoiprouteflushtabletel#sudoiprouteadddefaultvia125.91.219.249deveth2src125.91.219.252tabletel#sudoipruleaddfrom125.91.

4、219.252tabletel#sudoiprouteflushtablecnc#sudoiprouteadddefaultvia120.81.225.1devethlsrc120.81.225.31tablecnc#sudoipruleaddfrom120.81.225.31tablecnc4、运行命令sudovim/etc/init.d/networking配置脚木文件在exit0前加入如下内容，实就是刚才增加的路由规则。iprouteflushtableteliprouteadddefaultvia125.91.219.249deveth2src125.91.219.252tabl

5、etelipruleaddfrom125.91.219.252tableteliprouteflushtablecnciprouteadddefaultvia120.81.225.1devethlsrc120.81.225.31tablecncipruleaddfrom120.81.225.31tablecnc总接进入管理员权限sudosuroot添加到vi/etc/rc.local双线双路由红色部分是网管监色部分是木机ipiprouteflushtableteliprouteadddefaultvia101.226.164.129devethOsrc101.226.164.228tab

6、letelipruleaddfrom101.226.164.228tableteliprouteflushtablecnciprouteadddefaultvia140.207.194.129devethlsrc140.207.194.133tablecncipruleaddfrom140.207.194.133tablecnc网络路由表（网关需要更具实际情况修改。）routeadd-net1.188.0.0netmask255.252.0.0gw140.207.194.129metric1routeadd-net110.228.0.0netmask255.252.0.0gw140.20

7、7.194.129metric1routeadd-net110.232.39.64netmask255.255.255.192gw140.207.194.129metric1routeadd-net110.240.0.0netmask255.240.0.0gw140.207.194.129metric1routeadd-net110.51.0.0netmask255.255.0.0gw140.207.194.129metric1ro