今天我配置的实验有两大快,一是三层交换,二是单臂路由,三层交换主要来替换单臂路由,为什么我还要配呢,一些小公司,上网的人多,但又不想买三层设备,所以就要用到单臂路由.
这个拓扑图主要实现以下功能:
配置VTP域,减轻管理员工作量,配置PVST,
避免环路的产生,做好DHCP
中继,使不同vlan
中PC
能够动态获取IP
地址,设置以太网通道,增加数据流量,三层交换机配置路由功能,使不同vlan 之间的通信,
大体配置和思路如下:
1
,IP
规划:
3550-1 vlan10 :192.168.1.1 255.255.255.0
3550-1 vlan20 :192.168.2.1
255.255.255.0
3550-1 vlan30 :192.168.3.1
255.255.255.0
3550-1 vlan40 :192.168.4.1
255.255.255.0
3550-2 vlan10 :192.168.1.2 255.255.255.0
3550-2 vlan20 :192.168.2.2 255.255.255.0
3550-2 vlan30 :192.168.3.2 255.255.255.0
3550-2 vlan40 :192.168.4.2 255.255.255.0
3550-2 f0/7 192.168.5.1 255.255.255.0
R1 f0/1 :192.168.5.2 255.255.255.0
R1 f0/2 :192.168.6.1 255.255.255.0
R2 f0/1 :192.168.6.2 255.255.255.0
R2 f0/2.1 :192.168.7.1 255.255.255.0
R2 f0/2.2 :192.168.8.1 255.255.255.0
DHCP :192.168.1.3 255.255.255.0 192.168.1.1
PC1:192.168.2.3 255.255.255.0 192.168.2.1
PC2:192.168.3.3 255.255.255.0 192.168.3.2
PC3:192.168.4.3 255.255.255.0 192.168.4.2
PC4:192.168.7.2 255.255.255.0 192.168.7.1
PC5:192.168.8.2 255.255.255.0 192.168.8.1
2
,线缆规划:
SW1
的f0/1
端口连接3550-1 f0/1
端口f0/2
端口连接3550-2 f0/1
端口f0/3
端口连接DHCP
服务器,属于Vlan 1;
SW2
的f0/1
端口连接3550-1 f0/2
端口f0/2
端口连接3550-2 f0/2
端口f0/3
端口连接PC1
机,属于Vlan 2;
SW3
的f0/1
端口连接3550-1 f0/3
端口f0/2
端口连接3550-2 f0/3
端口f0/3
端口连接PC2
机,属于Vlan 3;
SW4
的f0/1
端口连接3550-1 f0/4
端口f0/2
端口连接3550-2 f0/4
端口f0/3
端口连接PC3
机,属于Vlan 4;
3550-1 f0/5
端口连接3550-2 f0/5
3550-1 f0/6
端口连接3550-2 f0/6
3550-2 f0/7
端口连接 R1 f0/1
R1 f0/2
端口连接 R2 f0/1
R2 f0/2
端口连接 SW5 f0/24
SW5 f0/1
端口连接 PC4
SW5 f0/2
端口连接 PC5
3
,VTP
配置:
VTP
的域名 VTP
的密码 VTP
的修剪
配置两台3550
为VTP server
模式
配置其他交换机为client
模式
4
,STP
配置:
设置3550-1
是Vlan1-Vlan2
的生成树根网桥
设置3550-2
是Vlan3-Vlan4
的生成树根网桥
在接入层交换机上配置速端口和上行速链路
5
,三层交换机的配置:
在其中一台交换机上划分Vlan;
在三层交换机上配置各个Vlan
的IP
地址,
配置两台三层交换机之间的以太网通道(EthernetChannel
)
配置3550-2
交换机的路由接口
在三层交换机上配置RIP
协议
6
,路由器的配置
配置路由器接口的IP
地址
配置路由器的RIP
协议
在R2
上配置单臂路由
7
,配置SW5
在SW5
上划分Vlan
将PC4
;PC5
添加进去
好了,规划完了,下面我们开始命令行配置吧:
3550-1
的配置如下:
配置交换机的三层路由功能
3550-1#config terminal
3550-1<config>#ip routing
//
启用三层路由功能
配置VTP
域:
3550-1>enable
3550-1<config>#vtp domain benet
//
创建VTP
域
3550-1<config>#vtp password 123
// VTP
域的密码
3550-1<config>#vtp pruning
//
起用VTP
修剪
3550-1<config>#vtp mode server
//
配置交换机为vtp server
模式
3550-1<config>#exit
//
返回下一级
配置VLAN
3550-1#vlan database
//
进入vlan
数据库
3550-1<vlan>#vlan 10 name vlan10
//
创建vlan 10
3550-1<vlan>#vlan 20 name vlan20
//
创建vlan 20
3550-1<vlan>#vlan 30 name vlan30
//
创建vlan 30
3550-1<vlan>#vlan 40 name vlan40
//
创建vlan 40
3550-1<vlan>#exit
配置vlan IP
地址:
3550-1#config terminal
3550-1<config>#interface vlan10
3550-1<config-vlan>#ip address 192.168.1.1 255.255.255.0
3550-1<config-vlan>#exit
3550-1<config>#interface vlan20
3550-1<config-vlan>#ip address 192.168.2.1 255.255.255.0
3550-1<config-vlan>#exit
3550-1<config>#interface vlan30
3550-1<config-vlan>#ip address 192.168.3.1 255.255.255.0
3550-1<config-vlan>#exit
3550-1<config>#interface vlan40
3550-1<config-vlan>#ip address 192.168.4.1 255.255.255.0
3550-1<config-vlan>#exit
配置RIP
协议:
3550-1#config terminal
3550-1<config>#ip routing
3550-1<config>#router rip
3550-1<config-router>#network 192.168.1.0
3550-1<config-router>#network 192.168.2.0
3550-1<config-router>#network 192.168.3.0
3550-1<config-router>#network 192.168.4.0
配置PVST:
3550-1<config>#spanning-tree vlan vlan10 root primary
//
配置vlan10
的根网桥
3550-1<config>#spanning-tree vlan vlan20 root primary
//
配置vlan20
的根网桥
3550-1<config>#spanning-tree vlan vlan30 root secondary
3550-1<config>#spanning-tree vlan vlan40 root secondary
3550-1<config>#interface range fastEthernet 0/5 – 6
//
进入一定端口
3550-1<config-range>#channel-group 1 mode on
//
配置以太网通道
配置DHCP
中继:
3550-1<config>#interface vlan vlan10
3550-1<config-if>#ip helper-address 192.168.1.3
3550-1<config>#interface vlan vlan20
3550-1<config-if>#ip helper-address 192.168.1.3
3550-2
的配置如下:
配置交换机的三层路由功能
3550-2#config terminal
3550-2<config>#ip routing
配置VTP
域:
3550-2#config terminal
3550-2<config>#vtp domain benet
3550-2<config>#vtp password 123
3550-2<config>#vtp pruning
3550-2<config>#vtp mode server
3550-2<config>#exit
配置vlan IP
地址:
3550-2#config terminal
3550-2<config>#interface vlan10
3550-2<config-vlan>#ip address 192.168.1.2 255.255.255.0
3550-2<config-vlan>#exit
3550-2<config>#interface vlan20
3550-2<config-vlan>#ip address 192.168.2.2 255.255.255.0
3550-2<config-vlan>#exit
3550-2<config>#interface vlan30
3550-2<config-vlan>#ip address 192.168.3.2 255.255.255.0
3550-2<config-vlan>#exit
3550-2<config>#interface vlan40
3550-2<config-vlan>#ip address 192.168.4.2 255.255.255.0
3550-2<config>#interface f0/7
3550-2<config-if>#no switchport
3550-2<config-if>#ip address 192.168.5.1 255.255.255.0
3550-2<config-if>#no shotdown
3550-2<config-if>#exit
配置RIP
协议:
3550-2#config terminal
3550-2<config>#router rip
3550-1<config-router>#network 192.168.1.0
3550-1<config-router>#network 192.168.2.0
3550-1<config-router>#network 192.168.3.0
3550-1<config-router>#network 192.168.4.0
3550-1<config-router>#network 192.168.5.0
配置PVST:
3550-2<config>#spanning-tree vlan vlan30 root primary
3550-2<config>#spanning-tree vlan vlan40 root primary
3550-2<config>#spanning-tree vlan vlan10 root secondary
3550-2<config>#spanning-tree vlan vlan20 root secondary
3550-2<config>#interface range fastEthernet 0/5 – 6
3550-2<config-if-range>#channel-group 1 mode on
配置DHCP
中继:
3550-2<config>#interface vlan vlan30
3550-2<config-if>#ip helper-address 192.168.1.3
3550-2<config>#interface vlan vlan40
3550-2<config-if>#ip helper-address 192.168.1.3
配置交换机:
Sw1#config terminal
Sw1<config>#vtp domain benet
Sw1<config>#vtp password 123
Sw1<config>#vtp mode client
Sw1<config>#vtp pruning
Sw1<config>#interface f0/1
Sw1<config-if>#switchport mode trunk
Sw1<config-if>#exit
Sw1<config>#interface f0/2
Sw1<config-if>#switchport mode trunk
Sw1<config-if>#exit
Sw1<config>#interface f0/3
Sw1<config-if>#switchport access vlan 10
Sw1<config-if>#spanning-tree portfast //端口速链路
Sw1<config-if>#exit
Sw1<config>#spanning-tree uplinkfast //上行速端口
Sw2#config terminal
Sw2<config>#vtp domain benet
Sw2<config>#vtp password 123
Sw2<config>#vtp mode client
Sw1<config>#vtp pruning
Sw2<config>#interface f0/1
Sw2<config-if>#switchport mode trunk
Sw2<config-if>#exit
Sw2<config>#interface f0/2
Sw2<config-if>#switchport mode trunk
Sw2<config-if>#exit
Sw2<config>#interface f0/3
Sw2<config-if>#switchport access vlan 20
Sw2<config-if>#spanning-tree portfast
Sw2<config-if>#exit
Sw2<config>#spanning-tree uplinkfast
Sw3#config terminal
Sw3<config>#vtp domain benet
Sw3<config>#vtp password 123
Sw3<config>#vtp mode client
Sw1<config>#vtp pruning
Sw3<config>#interface f0/1
Sw3<config-if>#switchport mode trunk
Sw3<config-if>#exit
Sw3<config>#interface f0/2
Sw3<config-if>#switchport mode trunk
Sw3<config-if>#exit
Sw3<config>#interface f0/3
Sw3<config-if>#switchport access vlan 30
Sw3<config-if>#spanning-tree portfast
Sw3<config-if>#exit
Sw3<config>#spanning-tree uplinkfast
Sw4#config terminal
Sw4<config>#vtp domain benet
Sw4<config>#vtp password 123
Sw4<config>#vtp mode client
Sw1<config>#vtp pruning
Sw4<config>#interface f0/1
Sw4<config-if>#switchport mode trunk
Sw4<config-if>#exit
Sw4<config>#interface f0/2
Sw4<config-if>#switchport mode trunk
Sw4<config-if>#exit
Sw4<config>#interface f0/3
Sw4<config-if>#switchport access vlan 40
Sw4<config-if>#spanning-tree portfast
Sw4<config-if>#exit
Sw4<config>#spanning-tree uplinkfast
Sw5 >enable
Sw5#config terminal
Sw5<config>#interface f0/24
Sw5<config-if>#switchport mode trunk
Sw5<config-if>#end
Sw5#vlan database
Sw5<vlan>#vlan 10 valn10
Sw5<vlan>#vlan 20 valn20
Sw5<vlan>#exit
Sw5#config terminal
Sw5<config>#interface f0/1
Sw5<config-if>#switchport access vlan10
Sw5<config>#interface f0/2
Sw5<config-if>#switchport access vlan20
路由器的配置:
R1>enable
R1#config terminal
R1<config>#interface f0/1
R1<config-if>#ip address 192.168.5.2 255.255.255.0
R1<config-if>#no shotdown
R1<config>#interface f0/2
R1<config-if>#ip address 192.168.6.1 255.255.255.0
R1<config-if>#no shotdown
R1<config-if>#exit
R1<config>#router rip
R1<config>#network 192.168.5.0
R1<config>#router rip
R1<config>#network 192.168.6.0
R2>enable
R2#config terminal
R2<config>#interface f0/1
R2<config-if>#ip address 192.168.6.2 255.255.255.0
R1<config-if>#no shotdown
R1<config-if>#exit
R1<config>#interface f0/2
R1<config-if>#no shotdown
R1<config-if>#exit
R2<config>#interface f0/2.1
R2<config-subif>#ip address 192.168.7.1 255.255.255.0
R2<config-subif>#encapsolution dot1 10
R2<config>#interface f0/2.2
R2<config-subif>#ip address 192.168.8.1 255.255.255.0
R2<config-subif>#encapsolution dot1 20
R2<config-if>#exit
R2<config>#router rip
R2<config>#network 192.168.6.0
R2<config>#router rip
R2<config>#network 192.168.7.0
R2<config>#router rip
R2<config>#network 192.168.8.0
PC4: IP: 192.168.7.2 mask:255.255.255.0 default-gateway:192.168.7.1
PC5: IP: 192.168.8.2
mask:255.255.255.0 default-gateway:192.168.8.1
实验验收:
在PC1/PC2/PC3/上动态获取DHCP服务器的地址资源
在PC4/PC5上ping PC1/PC2/PC3/和DHCP服务器
排错事使用的命令:
show run //查看所有的配置
show cdp entry * //查看cisco端口连接的设备
show ip router //查看本地路由表
show ip interface brief //查看端口的详细信息
show vlan brief //查看vlan的详细信息
show vtp status //查看VTP配置信息
show ip cef //查看FIB表
show adjacency detail //查看邻接关系表