1. 划分VLAN
[sw1]vlan batch 2 3
[sw2]vlan batch 2 3
[sw3]vlan batch 2 3
[sw4]vlan batch 2 3
2.分别在SW1和SW2配置Eth - trunk
[sw1]interface Eth-Trunk 1
[sw1-Eth-Trunk1]trunkport GigabitEthernet 0/0/1
[sw1-Eth-Trunk1]trunkport GigabitEthernet 0/0/2
[sw2]interface Eth-Trunk 1
[sw2-Eth-Trunk1]trunkport GigabitEthernet 0/0/1
[sw2-Eth-Trunk1]trunkport GigabitEthernet 0/0/2
再通过display eth-trunk 1 命令查看是否创建成功
3.划分接口
[sw3-GigabitEthernet0/0/1]port link-type access
[sw3-GigabitEthernet0/0/1]port default vlan 2
[sw3-GigabitEthernet0/0/2]port link-type access
[sw3-GigabitEthernet0/0/2]port default vlan 3
[sw4-GigabitEthernet0/0/1]port link-type access
[sw4-GigabitEthernet0/0/1]port default vlan 2
[sw4-GigabitEthernet0/0/2]port link-type access
[sw4-GigabitEthernet0/0/2]port default vlan 3
[sw1-GigabitEthernet0/0/5]port link-type trunk
[sw1-GigabitEthernet0/0/5]port trunk allow-pass vlan 2 3
[sw2-GigabitEthernet0/0/5]port link-type trunk
[sw2-port-group-trunk]port trunk allow-pass vlan 2 3
[sw1]int g 0/0/3
[sw1-GigabitEthernet0/0/3]port link-type trunk
[sw1-GigabitEthernet0/0/3]port trunk allow-pass vlan 2 3
[sw1]int g 0/0/4
[sw1-GigabitEthernet0/0/4]port link-type trunk
[sw1-GigabitEthernet0/0/4]port trunk allow-pass vlan 2 3
[sw3-GigabitEthernet0/0/3]port link-type trunk
[sw3-GigabitEthernet0/0/3]port trunk allow-pass vlan 2 3
[sw2]interface GigabitEthernet 0/0/3
[sw2-GigabitEthernet0/0/3]port link-type trunk
[sw2-GigabitEthernet0/0/3]port trunk allow-pass vlan 2 3
[sw4]int g 0/0/4
[sw4-GigabitEthernet0/0/4]port link-type trunk
[sw4-GigabitEthernet0/0/4]port trunk allow-pass vlan 2 3
4.MSTP 配置
[sw1]stp enable
[sw1]stp mode mstp
[sw1]stp region-configuration
[sw1-mst-region]region-name aa
[sw1-mst-region]revision-level 1
[sw1-mst-region]instance 1 vlan 2
[sw1-mst-region]instance 2 vlan 3
[sw1-mst-region]active region-configuration
[sw2]stp enable
[sw2]stp mode mstp
[sw2]stp region-configuration
[sw2-mst-region]region-name aa
[sw2-mst-region]revision-level 1
[sw2-mst-region]instance 1 vlan 2
[sw2-mst-region]instance 2 vlan 3
[sw2-mst-region]active region-configuration
[sw1]stp instance 1 root primary
[sw1]stp instance 2 root secondary
[sw2]stp instance 1 root secondary
[sw2]stp instance 2 root primary
5.SVI配置
[sw1]interface Vlanif 2
[sw1-Vlanif2]ip address 172.16.2.1 24
[sw1]interface Vlanif 3
[sw1-Vlanif3]ip address 172.16.3.1 24
[sw2]interface Vlanif 2
[sw2-Vlanif2]ip address 172.16.2.2 24
[sw2]interface Vlanif 3
[sw2-Vlanif3]ip address 172.16.3.2 24
6.VRRP配置
[sw1]interface Vlanif2
[sw1-Vlanif2]vrrp vrid 2 virtual-ip 172.16.2.254
[sw1-Vlanif2]vrrp vrid 2 priority 110
[sw1]interface Vlanif 3
[sw1-Vlanif3]vrrp vrid 3 virtual-ip 172.16.3.254
[sw1-Vlanif3]vrrp vrid 3 priority 100
[sw2]interface Vlanif 2
[sw2-Vlanif2]vrrp vrid 2 virtual-ip 172.16.2.254
[sw2-Vlanif2]vrrp vrid 2 priority 100
[sw2-Vlanif2]interface Vlanif 3
[sw2-Vlanif3]vrrp vrid 3 virtual-ip 172.16.3.254
[sw2-Vlanif3]vrrp vrid 3 priority 110
7.DHCP配置
[sw1]dhcp enable
[sw1]interface Vlanif 2
[sw1-Vlanif2]dhcp select interface
[sw1-Vlanif2]dhcp server excluded-ip-address 172.16.2.11 172.16.2.20
[sw1]interface Vlanif 3
[sw1-Vlanif3]dhcp select interface
[sw1-Vlanif3]dhcp server excluded-ip-address 172.16.3.11 172.16.3.20
[sw2]dhcp enable
[sw2]interface Vlanif 2
[sw2-Vlanif2]dhcp select interface
[sw2-Vlanif2]dhcp server excluded-ip-address 172.16.2.11 172.16.2.20
[sw2]interface Vlanif 3
[sw2-Vlanif3]dhcp select interface
[sw2-Vlanif3]dhcp server excluded-ip-address 172.16.3.11 172.16.3.20
8.路由器r1接口IP配置
[r1]interface GigabitEthernet 0/0/0
[r1-GigabitEthernet0/0/0]ip address 172.16.1.1 30
[r1]interface GigabitEthernet 0/0/1
[r1-GigabitEthernet0/0/1]ip address 172.16.1.5 30
[r1]interface GigabitEthernet 0/0/2
[r1-GigabitEthernet0/0/2]ip address 172.16.1.9 30
9.路由配置
[r1]ip route-static 0.0.0.0 0.0.0.0 172.16.1.2
10.NAT配置
[r1]acl number 2000
[r1-acl-basic-2000]rule 5 permit source 172.16.0.0 0.0.255.255
[r1]interface GigabitEthernet 0/0/0
[r1-GigabitEthernet0/0/0]nat outbound 2000
11.ISP路由器接口配置
[ISP]interface GigabitEthernet 0/0/0
[ISP-GigabitEthernet0/0/0] ip address 172.16.1.2 30
[ISP]interface LoopBack 0
[ISP-LoopBack0] ip address 192.168.1.1 32
验证: