Configure terminal //进入全局模式
service password-encryption //对密码进行加密
hostname Catalyst 3550-12T1 //给三层交换机定义名称
enable password 123456. //enable密码
Enable secret 654321 //enable的加密密码(应该是乱码而不是654321这样)
Ip subnet-zero //允许使用全0子网(默认都是打开的)
Ip name-server 172.16.8.1 172.16.8.2 //三层交换机名字Catalyst 3550-12T1对应的IP地址是172.16.8.1
Service dhcp //提供DHCP服务
ip routing //启用三层交换机上的路由模块
Vtp mode server //定义VTP工作模式为sever模式
Vtp domain centervtp //定义VTP域的名称为centervtp
Vlan 2 name vlan2 //定义vlan并给vlan取名(如果不取名的话,vlan2的名字应该是vlan002)
Vlan 3 name vlan3
Vlan 4 name vlan4
Vlan 5 name vlan5
Vlan 6 name vlan6
Vlan 7 name vlan7
Vlan 8 name vlan8
Vlan 9 name vlan9
Exit
switchport trunk encapsulation dot1q //给这个接口的trunk封装为802.1Q的帧格式
switchport mode trunk //定义这个接口的工作模式为trunk
switchport trunk allowed vlan all //在这个trunk上允许所有的vlan通过
Interface gigabitethernet 0/1 //进入模块0上的吉比特以太口1
switchport trunk encapsulation dotlq //给这个接口的trunk封装为802.1Q的帧格式
switchport mode trunk //定义这个接口的工作模式为trunk
switchport trunk allowed vlan all //在这个trunk上允许所有的vlan通过
channel-group 1 mode on //把这个接口放到快速以太通道组1中
Interface gigabitethernet 0/2 //同上
switchport trunk encapsulation dotlq
switchport mode trunk
switchport trunk allowed vlan all
channel-group 1 mode on
interface gigabitethernet 0/3 //进入模块0上的吉比特以太口3
switchport trunk encapsulation dotlq //给trunk封装为802.1Q
switchport mode trunk //定义这个接口的工作模式为trunk
switchport trunk encapsulation dotlq
switchport mode trunk
switchport trunk allowed vlan all
switchport trunk encapsulation dotlq
switchport mode trunk
switchport trunk allowed vlan all
switchport trunk encapsulation dotlq
switchport mode trunk
switchprot trunk allowed vlan all
Switchport mode access //定义这个接口的工作模式为访问模式
switchport access vlan 9 //定义这个接口可以访问哪个vlan(实际就是分配这个接口到vlan)
no shutdown
spanning-tree vlan 6-9 cost 1000 //在生成树中,vlan6-9的开销定义为10000
switchport mode access //定义这些接口的工作模式为访问模式
switchport access vlan 8 //把这些接口都分配到vlan8中
no shutdown
spanning-tree portfast //在这些接口上使用portfast(使用portfast以后,在生成树的时候不参加运算,直接成为转发状态)
switchport trunk encapsulation dotlq //给这个接口封装为802.1Q
switchport mode trunk //定义这个接口的工作模式为trunk
switchport trunk allowed vlan all //允许所有vlan信息通过
switchport trunk encapsulation dotlq
switchport mode trunk
switchport trunk allowed vlan all
ip address 172.16.1.7 255.255.255.0 //配置IP地址和子网掩码
no shutdown
standby 1 ip 172.16.1.9 //开启了冗余热备份(HSRP),冗余热备份组1,虚拟路由器的IP地址为172.16.1.9
standby 1 priority 110 preempt //定义这个三层交换机在冗余热备份组1中的优先级为110,preempt是用来开启抢占模式
ip address 172.16.2.252 255.255.255.0
no shutdown
standby 2 ip 172.16.2.254
standby 2 priority 110 preempt
ip access-group 101 in //在入方向上使用扩展的访问控制列表101
ip address 172.16.3.252 255.255.255.0
no shutdown
standby 3 ip 172.16.3.254
standby 3 priority 110 preempt
ip access-group 101 in
ip address 172.16.4.252 255.255.255.0
no shutdown
standby 4 ip 172.16.4.254
standby 4 priority 110 preempt
ip access-group 101 in
ip address 172.16.5.252 255.255.255.0
no shutdown
standby 5 ip 172.16.5.254
standby 5 priority 110 preempt
ip access-group 101 in
ip address 172.16.6.252 255.255.255.0
no shutdown
standby 6 ip 172.16.6.254
standby 6 priority 100 preempt
ip address 172.16.7.252 255.255.255.0
no shutdown
standby 7 ip 172.16.7.254
standby 7 priority 100 preempt
ip address 172.16.8.252 255.255.255.0
no shutdown
standby 8 ip 172.16.8.254
standby 8 priority 100 preempt
ip address 172.16.9.252 255.255.255.0
no shutdown
standby 9 ip 172.16.9.254
standby 9 priority 100 preempt
access-list 101 permit ip any any
Ip helper-address 172.16.8.1 //可以转发广播(helper-address的作用就是把广播转化为单播,然后发向172.16.8.1)
Interface vlan 2
Ip helper-address 172.16.8.1
Interface vlan 3
ip helper-address 172.16.8.1
interface vlan 4
ip helper-address 172.16.8.1
interface vlan 5
ip helper-address 172.16.8.1
interface vlan 6
ip helper-address 172.16.8.1
interface vlan 7
ip helper-address 172.16.8.1
interface vlan 9
ip helper-address 172.16.8.1
version 2 //使用的是RIPv2,如果没有这句,则是使用RIPv1
network 172.16.0.0 //宣告直连的网段
line con 0
line aux 0
line vty 0 15 //telnet线路(路由器只有5个,是0-4)
password 12345678 //login密码
login
end
copy running-config startup-config 保存配置