一个简单的单臂路由的配置的过程

1、R12950-24S1PC-PTPC31841R1设备如图：pc机2台分别为pc2和pc3、二层交换机1个为si、路由器1个为24位的首先开始配置 pc机的ip地址pc2 : 192.1682 10pc3 : 192.168.3.10 掩码都是网关可以到后面配置这里暂时不设置网关。下面来配置交换机，分配好 vlan。（简单的我就不解释了）Switch>e nableSwitch#vlan d% Warning: It is recomme nded to con figure VLAN from config mode, as VLAN database mode is being de

2、precated. Please con sult user docume ntati on for con figuri ng VTP/VLAN in config mode.Switch(vla n)#vla n 2 name test01VLAN 2 added:Name: test01Switch(vla n)#vla n 3 name test02VLAN 3 added:Name: test02宀设置好vlan，这里只简单设置两个。Switch(vla n)#exitAPPLY completed.Exit in g.Switch#c onfigCon figuri ng from

3、 termi nal, memory, or n etwork term in al?En ter con figurati on comma nds, one per line. End with CNTL/Z.Switch(co nfig)#i nterface fa0/2Switch(c on fig-if)#switchport access vla n 2Switch(c on fig-if)#exitSwitch(co nfig)#i nterface faO/3Switch(c on fig-if)#switchport access vla n 3Switch(c on fig

4、-if)#exitSwitch(co nfig)#i nterface faO/1Switch(c on fig-if)#switchport mode trunkSwitch(config-if)#switchport trunk allowed vian allSwitch(c on fig-if)#exitSwitch(c on fig)#e nd%SYS-5-CONFIG_l: Con figured from con sole by con soleSwitch#write memoryBuildi ng con figurati on.OK下面来重点，配置单臂路由：Router&g

5、t;e nableRouter#c onfigCon figuri ng from termi nal, memory, or n etwork term in al?En ter con figurati on comma nds, one per line. End with CNTL/Z 进入全局酉己置模式Router(co nfig)#i nterface faO/O 进入和交换机连接的那个接口Router(c on fig-if)# no shutdow n 激活该端口Router(config-if)#interface faO/O.1 配置子接口这是配置单臂路由的关键，这个接口是

6、个 逻辑接口，并不是实际存在的物理接口，但是功能却和物理接口是一样的。Router(config-subif)#ip address 192.168.2.1 255.255.255.0 为该接口划分 ip 地址。Router(config-subif)#encapsulation dotlq 2 为这个接口配置 802.1Q 协议，最后面的2是vlan号，这也是关键部分Router(c on fig-subif)#exit同样，进入第2个子接口，进行配置Router(co nfig)#i nterface fa0/0.2Router(co nfig-subif)#ip address 192.168.3.1 255.255.255.0码.划分ip地址和子网掩Router(c on fig-subif)#e ncapsulati on dot1q 3配置802.1Q协议Router(c on fig-subif)#e nd%SYS