思科路由器怎样定义 一个IP或IP段走网通线路(2个线路,一电信默认做了走电信,一网通)最好把命令打出来

2025-03-06 12:43:55
推荐回答(3个)
回答(1):

问题没说清楚,是要根据源ip设置路由还是目的ip设置路由。根据源ip设置路由能保证回流正常,但出去的数据可能会绕行,比如访问网通的资源,但是因为源ip是电信的,所以按照设置走了电信的线路。根据目的ip设置路由能保证出去的数据流正常,但回来的数据流可能会绕行,比如用电信的源ip访问网通资源,回来时候要绕行网通到电信的出口。而且,一个电脑配置两个ip也不现实,这些功能都要在路由器上实现,而给电脑提供单一的ip和单一的网关。可以用双wan口路由器实现,可以用软路由实现,也可以在支持配置的路由器上做双nat实现,根据目的ip对源ip做nat。简单配置如下:
access-list 110 permit ip any x.x.x.x x.x.x.x 网通网段
access-list 120 permit ip any x.x.x.x x.x.x.x 电信网段
ip nat pool Unicom x.x.x.x x.x.x.x netmask x.x.x.x 网通分配的ip段
ip nat pool Telecom x.x.x.x x.x.x.x netmask x.x.x.x 电信分配的ip段
ip nat inside source list 110 pool Unicom overload
ip nat inside source list 120 pool Telecom overload

回答(2):

我建议你在路由器上面做一个基于源IP的策略路由!
一:做一个前缀列表或者访问控制列表(ACL)在你的本地端口上应用!
R(config)#access-list 1 permit IP(允许出去的网段或者IP)
R(config)#access-list N permit IP
R(config)#route-map name permit number (不大于五位的任意数字)
R(config-route-map )#match ip address 列表号
R(config-route-map )#set ip next-hop IP地址
R(config)#route-map name permit number 不能重复
R(config-route-map )#match ip address 列表号
R(config-route-map )#set ip next-hop IP地址
进入路由协议应用!

回答(3):

不能这么定义吧!你的IP地址是连接到网络以后分给你的,是网通的当然就走网通线路,电信的就走电信线路。比如说电信的IP ping 你的网通IP地址也要先访问电信骨干网,然后再到联通骨干网,最后再是网通IP吧。

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