要求：
1.内网地址172.16.0.0/16合理分配
2.SW1/2之间互为备份
3.VRRP/STP/VLAN/TRUNK均使用
一。配置交换机部分
eth-trunk 创建，划分vlan trunk STP SVI VRRP DHCP
1.配置eth-trunk进行绑定
[SW1]interface Eth-Trunk 0
[SW1-Eth-Trunk0]q
[SW1]int g0/0/2
[SW1-GigabitEthernet0/0/2]eth-trunk 0
[SW1-GigabitEthernet0/0/2]q
[SW1]int g0/0/3
[SW1-GigabitEthernet0/0/3]eth-trunk 0
[SW2-Eth-Trunk0]q
[SW2]int g0/0/2
[SW2-GigabitEthernet0/0/2]eth-trunk 0
[SW2-GigabitEthernet0/0/2]q
[SW2]int g0/0/3
[SW2-GigabitEthernet0/0/3]eth-trunk 0
2.创建vlan，划分接口类型
[SW1]vlan 2
[SW1-vlan2]q
[SW1]port-group group-member g0/0/4 to g0/0/5 Eth-Trunk 0
[SW1-port-group]port link-type trunk
[SW1-GigabitEthernet0/0/4]port link-type trunk
[SW1-GigabitEthernet0/0/5]port link-type trunk
[SW1-Eth-Trunk0]port link-type trunk
[SW1-port-group]port trunk allow-pass vlan 2
[SW1-GigabitEthernet0/0/4]port trunk allow-pass vlan 2
[SW1-GigabitEthernet0/0/5]port trunk allow-pass vlan 2
[SW1-Eth-Trunk0]port trunk allow-pass vlan 2
[SW2]vlan 2
[SW2-vlan2]q
[SW2]port-group group-member g0/0/4 to g0/0/5 Eth-Trunk 0
[SW2-port-group]port link-type trunk
[SW2-GigabitEthernet0/0/4]port link-type trunk
[SW2-GigabitEthernet0/0/5]port link-type trunk
[SW2-Eth-Trunk0]port link-type trunk
[SW2-port-group]port trunk allow-pass vlan 2
[SW2-GigabitEthernet0/0/4]port trunk allow-pass vlan 2
[SW2-GigabitEthernet0/0/5]port trunk allow-pass vlan 2
[SW2-Eth-Trunk0]port trunk allow-pass vlan 2
[SW3]vlan 2
[SW3-vlan2]q
[SW3-Ethernet0/0/3]int e0/0/4
[SW3-Ethernet0/0/4]port link-type access
[SW3-Ethernet0/0/4]port default vlan 2
[SW3-Ethernet0/0/4]q
[SW3]port-group group-member e0/0/1 to e0/0/2
[SW3-port-group]port link-type trunk
[SW3-Ethernet0/0/1]port link-type trunk
[SW3-Ethernet0/0/2]port link-type trunk
[SW3-port-group]port trunk allow-pass vlan 2
[SW3-Ethernet0/0/1]port trunk allow-pass vlan 2
[SW3-Ethernet0/0/2]port trunk allow-pass vlan 2
[SW4]vlan 2
[SW4-vlan2]q
[SW4]int e0/0/4
[SW4-Ethernet0/0/4]port link-type access
[SW4-Ethernet0/0/4]port default vlan 2
[SW4-Ethernet0/0/4]q
[SW4]port-group group-member e0/0/1 to e0/0/2
[SW4-port-group]port link-type trunk
[SW4-Ethernet0/0/1]port link-type trunk
[SW4-Ethernet0/0/2]port link-type trunk
[SW4-port-group]port trunk allow-pass vlan 2
[SW4-Ethernet0/0/1]port trunk allow-pass vlan 2
[SW4-Ethernet0/0/2]port trunk allow-pass vlan 2
3.配置生成树：
[SW1]stp region-configuration
[SW1-mst-region]region-name aa
[SW1-mst-region]instance 1 vlan 1
[SW1-mst-region]instance 2 vlan 2
[SW1-mst-region]active region-configuration
[SW2]stp region-configuration
[SW2-mst-region]instance 1 vlan 1
[SW2-mst-region]instance 2 vlan 2
[SW2-mst-region]active region-configuration
[SW3]stp region-configuration
[SW3-mst-region]region-name aa
[SW3-mst-region]instance 1 vlan 1
[SW3-mst-region]instance 2 vlan 2
[SW3-mst-region]active region-configuration
[SW4]stp region-configuration
[SW4-mst-region]region-name aa
[SW4-mst-region]instance 1 vlan 1
[SW4-mst-region]instance 2 vlan 2
[SW4-mst-region]active region-configuration
4.进行根和备份跟的确定：
[SW1]stp instance 1 root primary
[SW1]stp instance 2 root secondary
[SW1]stp instance 0 root primary
[SW2]stp instance 1 root secondary
[SW2]stp instance 2 root primary
[SW2]stp instance 0 root secondary
[SW3]port-group group-member e0/0/1 to e0/0/22（配置边缘接口进行优化）
[SW3-port-group]stp edged-port enable
[SW3]int e0/0/3（修改WiFi接口优先级）
[SW3-Ethernet0/0/3]stp instance 0 port priority 16
5.配置ip地址SVI：
[SW1]int vlan 1
[SW1-Vlanif1]ip add 172.16.1.1 25
[SW1]int vlan 2
[SW1-Vlanif2]ip add 172.16.1.129 25
[SW2]int vlan 1
[SW2-Vlanif1]ip add 172.16.1.2 25
[SW2]int vlan 2
[SW2-Vlanif2]ip add 172.16.1.130 25
6.进行网关冗余VRRP：
[SW1]int vlan 1
[SW1-Vlanif1]vrrp vrid 1 virtual-ip 172.16.1.126
[SW1-Vlanif1]vrrp vrid 1 priority 110 （称为主ip）
[SW1-Vlanif1]vrrp vrid 1 track interface g0/0/1 reduced 20
[SW2]int vlan 1
[SW2-Vlanif1]vrrp vrid 1 virtual-ip 172.16.1.126
[SW2]int vlan 2
[SW2-Vlanif2]vrrp vrid 1 virtual-ip 172.16.1.254
[SW2-Vlanif2]vrrp vrid 1 priority 110
[SW2-Vlanif2]vrrp vrid 1 track int g0/0/1 reduced 20
[SW1]int vlan 2
[SW1-Vlanif2]vrrp vrid 1 virtual-ip 172.16.1.254
7.配置DHCP获取IP地址：
[SW1]dhcp enable
[SW1]ip pool v1
[SW1-ip-pool-v1]net 172.16.1.0 mask 25
[SW1-ip-pool-v1]gateway-list 172.16.1.126
[SW1-ip-pool-v1]dns-list 114.114.114.114
[SW1-ip-pool-v1]q
[SW1]ip pool v2
[SW1-ip-pool-v2]net 172.16.1.128 mask 25
[SW1-ip-pool-v2]gateway-list 172.16.1.254
[SW1-ip-pool-v2]dns-list 114.114.114.114
[SW1-ip-pool-v2]q
[SW1]int vlan 1
[SW1-Vlanif1]dhcp select global
[SW1-Vlanif1]int vlan 2
[SW1-Vlanif2]dhcp select global
[SW2]dhcp enable
[SW2]ip pool v1
Info:It's successful to create an IP address pool.
[SW2-ip-pool-v1]net 172.16.1.0 mask 25
[SW2-ip-pool-v1]gateway-list 172.16.1.126
[SW2-ip-pool-v1]dns-list 114.114.114.114
[SW2-ip-pool-v1]q
[SW2]ip pool v2
Info:It's successful to create an IP address pool.
[SW2-ip-pool-v2]net 172.16.1.128 mask 25
[SW2-ip-pool-v2]gateway-list 172.16.1.254
[SW2-ip-pool-v2]dns-list 114.114.114.114
[SW2-ip-pool-v2]q
[SW2]int vlan 1
[SW2-Vlanif1]dhcp select global
[SW2-Vlanif1]int vlan 2
[SW2-Vlanif2]dhcp select global
8.对于上层路由器进行连接
[SW1]vlan 99
[SW1-GigabitEthernet0/0/2]int g0/0/1
[SW1-GigabitEthernet0/0/1]port link-type access
[SW1-GigabitEthernet0/0/1]port default vlan 99
[SW1]int vlan 99
[SW1-Vlanif99]ip add 172.16.0.2 30
[SW2]vlan 99
[SW2-vlan99]int g0/0/1
[SW2-GigabitEthernet0/0/1]port link-type access
[SW2-GigabitEthernet0/0/1]port default vlan 99
[SW2-GigabitEthernet0/0/1]q
[SW2]int vlan 99
[SW2-Vlanif99]ip add 172.16.0.6 30
9.配置沉默接口：
[SW1-ospf-1]silent-interface all
[SW1-ospf-1]undo silent-interface GigabitEthernet 0/0/1
[SW1-ospf-1]undo silent-interface Vlanif 99
[SW1-ospf-1]undo silent-interface Eth-Trunk 0
[SW1-ospf-1]undo silent-interface Vlanif 1
[SW2]ospf 1
[SW2-ospf-1]silent-interface all
[SW2-ospf-1]undo silent-interface GigabitEthernet 0/0/1
[SW2-ospf-1]undo silent-interface Vlanif 99
[SW2-ospf-1]undo silent-interface Eth-Trunk 0
[SW2-ospf-1]undo silent-interface Vlanif 1
三。配置路由器部分：
1.配置ospf协议
[R2]ospf 1 router-id 2.2.2.2
[R2-ospf-1]area 0
[R2-ospf-1-area-0.0.0.0]net 172.16.0.0 0.0.0.255
[SW1]ospf 1 router-id 3.3.3.3
[SW1-ospf-1]area 0
[SW1-ospf-1-area-0.0.0.0]net 172.16.0.2 0.0.0.0
[SW1-ospf-1]area 1
[SW1-ospf-1-area-0.0.0.1]net 172.16.1.0 0.0.0.255
[SW1-ospf-1-area-0.0.0.1]
[SW2]ospf 1 router-id 4.4.4.4
[SW2-ospf-1]area 0
[SW2-ospf-1-area-0.0.0.0]net 172.16.0.6 0.0.0.0
[SW2-ospf-1-area-0.0.0.0]q
[SW2-ospf-1]area 1
[SW2-ospf-1-area-0.0.0.1]net 172.16.1.0 0.0.0.255
2.配置缺省路由
[R2]ip route-static 0.0.0.0 0 12.1.1.1
[R2-ospf-1]default-route-advertise
3.进行路由汇总：
[SW1]ospf 1
[SW1-ospf-1]area 1
[SW1-ospf-1-area-0.0.0.1]abr-summary 172.16.1.0 255.255.255.0
[SW2]ospf 1
[SW2-ospf-1]area 1
[SW2-ospf-1-area-0.0.0.1]abr-summary 172.16.1.0 255.255.255.0
4.防止路由黑洞
[SW1]ip route-static 172.16.1.0 24 NULL 0
[SW2]ip route-static 172.16.1.0 24 NULL 0
5.配置nat，进行上网：
[R2]acl 2000
[R2-acl-basic-2000]rule permit source 172.16.0.0 0.0.255.255
[R2-acl-basic-2000]q
[R2]int g0/0/0
[R2-GigabitEthernet0/0/0]nat outbound 2000
