一、实验要求
实验拓扑图如上图所示
1、按照图示的VLAN及IP地址需求,完成相关配置
2、要求SW1为VLAN 2/3的主根及主网关
SW2为vlan 20/30的主根及主网关
SW1和SW2互为备份
3、可以使用super vlan(本实验未使用)
4、上层通过静态路由协议完成数据通信过程
5、AR1为企业出口路由器
6、要求全网可达
二、实验思路
1、先从交换机下手,将与PC连接的交换机SW3、SW4的VLAN相关配置先配好,然后再配置交换机间相连的配置(SW1、SW2),然后配置三层交换机(交换机与路由器之间的链路配置)
2、在SW1和SW2间的链路配置链路聚合
3、在交换机网络中,配置STP协议,防止链路成环
4、设置交换机的主根和主网关,以及它们的备份
5、配置VRRP、配置路由器的接口ip地址、自己的环回接口、还有静态路由
6、R1为出口路由器,故要在其出口接口配置NAT
7、完善其余步骤达到全网可通
三、实验步骤
1.在LSW3上:
LSW3上需要添加VLAN、划分接口等操作
LSW3vlan batch 2 3 20 30
LSW3INT G0/0/1
LSW3-GigabitEthernet0/0/1port link-type access
LSW3-GigabitEthernet0/0/1port default vlan 2
LSW3-GigabitEthernet0/0/1int g0/0/2
LSW3-GigabitEthernet0/0/2port link-type access
LSW3-GigabitEthernet0/0/2port default vlan 3
将LSW3的接口0/0/3和0/0/4配置成trunk,并开通VLAN 2 3 20 30
LSW3-GigabitEthernet0/0/2int g0/0/3
LSW3-GigabitEthernet0/0/3port link-type trunk
LSW3-GigabitEthernet0/0/3port trunk allow-pass vlan 2 3 20 30
LSW3-GigabitEthernet0/0/3int g0/0/4
LSW3-GigabitEthernet0/0/4port link-type trunk
LSW3-GigabitEthernet0/0/4port trunk allow-pass vlan 2 3 20 40

启动mstp并配置相同的预配置region-configuration
LSW3stp enable
LSW3stp mode mstp
LSW3stp region-configuration
LSW3-mst-regionregion-name 3
LSW3-mst-regionrevision-level 100
LSW3-mst-regioninstance 1 vlan 2 to 3
LSW3-mst-regioninstance 2 vlan 20 30
LSW3-mst-regionactive region-configuration

2.在LSW4上:
LSW4上需要添加VLAN、划分接口等操作
LSW4vlan batch 2 3 20 30
LSW4int g0/0/2
LSW4-GigabitEthernet0/0/2port link-type access
LSW4-GigabitEthernet0/0/2port default vlan 30
LSW4int g0/0/1
LSW4-GigabitEthernet0/0/1port link-type access
LSW4-GigabitEthernet0/0/1port default vlan 20
LSW4int g0/0/4
LSW4-GigabitEthernet0/0/4port link-type trunk
LSW4-GigabitEthernet0/0/4port trunk allow-pass vlan 2 3 20 30
LSW4int g0/0/3
LSW4-GigabitEthernet0/0/3port link-type trunk
LSW4-GigabitEthernet0/0/3port trunk allow-pass vlan 2 3 20 30


启动mstp并配置相同的预配置region-configuration
LSW4stp enable
LSW4stp mode mstp
LSW4stp region-configuration
LSW4-mst-regionregion-name 3
LSW4-mst-regionrevision-level 100
LSW4-mst-regioninstance 1 vlan 2 to 3
LSW4-mst-regioninstance 2 vlan 20 30
LSW4-mst-regionactive region-configuration

3.在LSW1上:
LSW1上需要添加VLAN、划分接口等操作
LSW1vlan batch 2 3 20 30
LSW1int g 0/0/3
LSW1-GigabitEthernet0/0/3port link-type trunk
LSW1-GigabitEthernet0/0/3port trunk allow-pass vlan 2 3 20 30
LSW1int g0/0/4
LSW1-GigabitEthernet0/0/4port link-type trunk
LSW1-GigabitEthernet0/0/4port trunk allow-pass vlan 2 3 20 30
LSW1int Eth-Trunk 0
LSW1-Eth-Trunk0trunkport GigabitEthernet 0/0/1 to 0/0/2
LSW1-Eth-Trunk0port link-type trunk
LSW1-Eth-Trunk0port trunk allow-pass vlan 2 3 20 30


启动mstp并配置相同的预配置region-configuration

4.在LSW2上:
LSW2上需要添加VLAN、划分接口等操作
LSW2vlan batch 2 3 20 30
LSW2int g0/0/3
LSW2-GigabitEthernet0/0/3port link-type trunk
LSW2-GigabitEthernet0/0/3port trunk allow-pass vlan 2 3 20 30
LSW2-GigabitEthernet0/0/3int g0/0/4
LSW2-GigabitEthernet0/0/4port link-type trunk
LSW2-GigabitEthernet0/0/4port trunk allow-pass vlan 2 3 20 30
LSW2int Eth-Trunk 0
LSW2-Eth-Trunk0trunkport GigabitEthernet 0/0/1 to 0/0/2
LSW2-Eth-Trunk0port link-type trunk
LSW2-Eth-Trunk0port trunk allow-pass vlan 2 3 20 30


启动mstp并配置相同的预配置region-configuration

主根与备份
LSW1成为主根
LSW1stp instance 1 root primary

LSW2成为备份
LSW2stp instance 2 root secondary

配置LSW1的VLANIF 2/3(主根)、VLANIF 20/30(备份根)
在交换机上分别设置IP,依次递增,例如LSW1为vlan2 10.0.2.1/24等,LSW2为10.0.2.2/24等
VLAN 2----->10.0.2.0/24
VLAN 3----->10.0.3.0/24
VLAN 20---->10.0.20.0/24
VLAN 30---->10.0.30.0/24
1.创建VLANif
LSW1(只修改IP地址,剩下的相同)
LSW1int Vlanif 2
LSW1-Vlanif2ip address 10.0.2.1 24 --设置IP地址
LSW1-Vlanif2vrrp vrid 1 virtual-ip 10.0.2.254 --配置VRRP
LSW1-Vlanif2vrrp vrid 1 priority 120 --设置优先级
LSW1-Vlanif2vrrp vrid 1 preempt-mode timer delay 20 --设置延迟时间
LSW1-Vlanif2vrrp vrid 1 track interface GigabitEthernet 0/0/5 reduced 30 --设置上行链路监控


LSW1是VLAN 20和30的备份根,所以要配置的很少,就ip地址和虚拟IP
LSW1interface Vlanif 20
LSW1-Vlanif20ip address 10.0.20.1 24
LSW1-Vlanif20vrrp vrid 1 virtual-ip 10.0.20.254
LSW1int Vlanif 30
LSW1-Vlanif30ip address 10.0.30.1 24
LSW1-Vlanif30vrrp vrid 1 virtual-ip 10.0.30.254

使用display命令查看配置

在LSW1的接口0/0/5上配置三层交换机
因为要与路由器R1进行连接,所以要进行额外的VLAN 配置
LSW1vlan 11
LSW1-vlan11int g0/0/5
LSW1-GigabitEthernet0/0/5port link-type access
LSW1-GigabitEthernet0/0/5port default vlan 11
LSW1int Vlanif 11
LSW1-Vlanif11ip address 10.0.0.1 30

配置LSW2的VLANIF 20/30(主根)、VLANIF 2/3(备份根)
因为LSW2是VLAN 2/3的备份根,配置少
LSW2int Vlanif 2
LSW2-Vlanif2ip address 10.0.2.2 24
LSW2-Vlanif2vrrp vrid 1 virtual-ip 10.0.2.254
LSW2int Vlanif 3
LSW2-Vlanif3ip address 10.0.3.2 24
LSW2-Vlanif3vrrp vrid 1 virtual-ip 10.0.3.254
LSW2为VLAN 20/30的主根,所以要配置优先级、延迟时间和上行链路监控
LSW2int Vlanif 20
LSW2-Vlanif20ip address 10.0.20.2 24
LSW2-Vlanif20vrrp vrid 1 virtual-ip 10.0.20.254
LSW2-Vlanif20vrrp vrid 1 priority 120
LSW2-Vlanif20vrrp vrid 1 preempt-mode timer delay 20
LSW2-Vlanif20vrrp vrid 1 track interface GigabitEthernet 0/0/5 reduced 30
LSW2int Vlanif 30
LSW2-Vlanif30ip address 10.0.30.2 24
LSW2-Vlanif30vrrp vrid 1 virtual-ip 10.0.30.254
LSW2-Vlanif30vrrp vrid 1 priority 120
LSW2-Vlanif30vrrp vrid 1 preempt-mode timer delay 20
LSW2-Vlanif30vrrp vrid 1 track interface GigabitEthernet 0/0/5 reduced 30


在LSW2的接口0/0/5上配置三层交换机
LSW2vlan 12
LSW2-vlan12int g0/0/5
LSW2-GigabitEthernet0/0/5port link-type access
LSW2-GigabitEthernet0/0/5port default vlan 12
LSW2int Vlanif 12
LSW2-Vlanif12ip address 10.0.0.5 30

配置OSPF
需要宣告VLAN2,3,20,30,LSW1宣告11,LSW2宣告12
LSW1ospf 1
LSW1-ospf-1area 0
LSW1-ospf-1-area-0.0.0.0network 10.0.2.1 0.0.0.0 --VLAN2
LSW1-ospf-1-area-0.0.0.0network 10.0.3.1 0.0.0.0 --VLAN3
LSW1-ospf-1-area-0.0.0.0network 10.0.20.1 0.0.0.0 ---VLAN20
LSW1-ospf-1-area-0.0.0.0network 10.0.30.1 0.0.0.0 --VLAN30
LSW1-ospf-1-area-0.0.0.0network 10.0.0.1 0.0.0.0 ---VLAN11

LSW2:

配置静默接口
LSW1ospf 1
LSW1-ospf-1silent-interface Vlanif 2
LSW1-ospf-1silent-interface Vlanif 3
LSW1-ospf-1silent-interface Vlanif 20
LSW1-ospf-1silent-interface Vlanif 30

LSW2:

配置LSW1,2和R1的专属VLAN13,并宣告


在ISP上
配置ISP的接口IP及其环回接口IP


在R1上
配置r1的接口ip
r1int g0/0/1
r1-GigabitEthernet0/0/1ip address 10.0.0.2 30
r1-GigabitEthernet0/0/0int g0/0/2
r1-GigabitEthernet0/0/2ip ad 10.0.0.6 30
r1int g0/0/0
r1-GigabitEthernet0/0/0ip ad 202.1.1.1 30

配置r1的ospf
AR1ospf 1
AR1-ospf-1area 0
AR1-ospf-1-area-0.0.0.0network 10.0.0.2 0.0.0.0
AR1-ospf-1-area-0.0.0.0network 10.0.0.6 0.0.0.0

配置缺省路由通到外网ISP
R1ip route-static 0.0.0.0 0 202.1.1.2

还需配置ospf的default-route-advertise
R1ospf 1
R1-ospf-1default-route-advertise

配置NAT 与 测试全网连通性
R1acl 2000
R1-acl-basic-2000rule permit source 10.0.0.0 0.0.255.255
R1int g0/0/0
R1-GigabitEthernet0/0/0nat outbound 2000

配置完成后就可以连接了
