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如何配置思科浮动路由

时间: 权威724 分享

如何配置思科浮动路由

  思科制造的路由器、交换机和其他设备承载了全球80%的互联网通信,成为硅谷中新经济的传奇,那么你知道如何配置思科浮动路由吗?下面是学习啦小编整理的一些关于如何配置思科浮动路由的相关资料,供你参考。

  配置思科浮动路由的方法:

  步骤1:准备基本环境

  首先,打开Cisco Packet tracer。购买两台主机,两台交换机。两台路由器,并各自组成A、B网络,

  为主机A配置IP为192.168.1.1。主机B配置192.168.3.1。

  步骤2:配置路由器,是的两个网络可以ping通

  打开路由器A,进入

  Router>enable

  Router#configure terminal

  Enter configuration commands, one per line. End with CNTL/Z.

  Router(config)#interface fastethernet 0/0

  Router(config-if)#ip address 192.168.1.254 255.255.255.0

  Router(config-if)#no shutdown

  Router(config-if)#

  %LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up

  %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up

  打开路由器B,

  Router>enable

  Router#configure terminal

  Enter configuration commands, one per line. End with CNTL/Z.

  Router(config)#interface fastethernet 0/0

  Router(config-if)#ip address 192.168.3.254 255.255.255.0

  Router(config-if)#no shutdown

  Router(config-if)#

  %LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up

  %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up

  回到A配置与B路由器同一网段

  Router#

  Router#configure terminal

  Enter configuration commands, one per line. End with CNTL/Z.

  Router(config)#interface fastethernet 0/1

  Router(config-if)#ip address 192.168.2.1 255.255.255.0

  Router(config-if)#no shutdown

  Router(config-if)#

  %LINK-5-CHANGED: Interface FastEthernet0/1, changed state to up

  同样进入B

  Router#

  Router#configure terminal

  Enter configuration commands, one per line. End with CNTL/Z.

  Router(config)#interface fastethernet 0/1

  Router(config-if)#ip address 192.168.2.2 255.255.255.0

  Router(config-if)#no shutdown

  Router(config-if)#

  %LINK-5-CHANGED: Interface FastEthernet0/1, changed state to up

  %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up

  这样就将两个路由器加入到同一网段。下面为路由表添加下一跳

  回到A

  Router#

  Router#configure terminal

  Enter configuration commands, one per line. End with CNTL/Z.

  Router(config)#ip route 192.168.3.0 255.255.255.0 192.168.2.2

  Router(config)#

  回到B

  Router#

  Router#configure terminal

  Enter configuration commands, one per line. End with CNTL/Z.

  Router(config)#ip route 192.168.1.0 255.255.255.0 192.168.2.1

  Router(config)#

  通过主机Aping主机B,

  C>ping 192.168.3.1

  Pinging 192.168.3.1 with 32 bytes of data:

  Reply from 192.168.3.1: bytes=32 time=0ms TTL=126

  Reply from 192.168.3.1: bytes=32 time=0ms TTL=126

  Reply from 192.168.3.1: bytes=32 time=0ms TTL=126

  Reply from 192.168.3.1: bytes=32 time=0ms TTL=126

  Ping statistics for 192.168.3.1:

  Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

  Approximate round trip times in milli-seconds:

  Minimum = 0ms, Maximum = 0ms, Average = 0ms

  回到主机A查看IP信息,对设置进行保存

  C 192.168.1.0/24 is directly connected, FastEthernet0/0

  C 192.168.2.0/24 is directly connected, FastEthernet0/1

  S 192.168.3.0/24 [1/0] via 192.168.2.2

  Router#write

  Building configuration...

  [OK]

  Router#

  同样步骤到B

  S 192.168.1.0/24 [1/0] via 192.168.2.1

  C 192.168.2.0/24 is directly connected, FastEthernet0/1

  C 192.168.3.0/24 is directly connected, FastEthernet0/0

  Router#write

  Building configuration...

  [OK]

  Router#

  Router#

  步骤2:建立浮动路由

  由于之前已经做好保存,下面直接将路由器关机,购买一个MN-1FE-TX到路由器A B,为端口连线。

  开机

  进入路由器A

  Router(config)#interface fastethernet 1/0

  Router(config-if)#ip address 192.168.4.1 255.255.255.0

  Router(config-if)#no shutdown

  Router(config-if)#

  进入B

  outer>enable

  Router#configure terminal

  Enter configuration commands, one per line. End with CNTL/Z.

  Router(config)#interface fastethernet 1/0

  Router(config-if)#ip address 192.168.4.2 255.255.255.0

  Router(config-if)#no shutdown

  Router(config-if)#

  这样就连通了两个路由器,再回到A

  outer(config)#interface fastethernet 1/0

  Router(config-if)#ip address 192.168.4.1 255.255.255.0

  Router(config-if)#no shutdown

  Router(config-if)#exit

  Router(config)#

  Router(config)#ip route 192.168.3.0 255.255.255.0 192.168.4.2 50

  Router(config)#

  回到B,

  outer(config)#interface fastethernet 1/0

  Router(config-if)#ip address 192.168.4.2 255.255.255.0

  Router(config-if)#no shutdown

  Router(config-if)#exit

  Router(config)#

  Router(config)#ip route 192.168.1.0 255.255.255.0 192.168.4.1

  Router(config)#

  为了验证浮动路由的作用,下面我们将A路由器的2.0网段的网线剪断,在这之前先看一下A的路由表状态

  Gateway of last resort is not set

  C 192.168.1.0/24 is directly connected, FastEthernet0/0

  C 192.168.2.0/24 is directly connected, FastEthernet0/1

  S 192.168.3.0/24 [1/0] via 192.168.2.2

  C 192.168.4.0/24 is directly connected, FastEthernet1/0

  Router#

  下面剪断拔掉192.168.2.1的端口

  Router(config)#interface fastethernet 0/1

  Router(config-if)#shutdown

  Router(config-if)#

  %LINK-5-CHANGED: Interface FastEthernet0/1, changed state to administratively down

  %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down

  Router(config-if)#

  再次进入查看路由

  C 192.168.1.0/24 is directly connected, FastEthernet0/0

  S 192.168.3.0/24 [50/0] via 192.168.4.2

  C 192.168.4.0/24 is directly connected, FastEthernet1/0

  Router#

  发现192.168.4.0段的路由开始生效,用主机Aping一下主机B。

  C>ping 192.168.3.1

  Pinging 192.168.3.1 with 32 bytes of data:

  Reply from 192.168.3.1: bytes=32 time=0ms TTL=126

  Reply from 192.168.3.1: bytes=32 time=0ms TTL=126

  Reply from 192.168.3.1: bytes=32 time=0ms TTL=126

  Reply from 192.168.3.1: bytes=32 time=0ms TTL=126

  Ping statistics for 192.168.3.1:

  Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

  Approximate round trip times in milli-seconds:

  Minimum = 0ms, Maximum = 0ms, Average = 0ms

  没有任何问题,至此,浮动路由配置完成

  实验结果:本次实验其实没有什么难度的说,主要还是熟练,熟练了能分清楚各IP网段就好了。

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