先劃分IP
R1與SW1:172.16.0.0/30
R2與SW2:172.16.0.4/30
vlan 2:172.16.1.0/25
vlan 3:172.16.1.128/25
R2
interface Loopback0 配置IP
ip address 1.1.1.1 255.255.255.0
interface FastEthernet0/0
ip address 12.1.1.1 255.255.255.0
R1
interface FastEthernet0/0 配置IP
ip address 12.1.1.2 255.255.255.0
interface FastEthernet0/1
ip address 172.16.0.1 255.255.255.252
interface FastEthernet1/0
ip address 172.16.0.5 255.255.255.252
router eigrp 100 eigrp協議
redistribute static 重發布；就是下放預設
network 172.16.0.0
auto-summary
interface f0/0 外網介面
ip nat outside
interface f0/1 內網介面
ip nat inside
interface f1/0
ip nat inside
ip route 0.0.0.0 0.0.0.0 12.1.1.1 靜態路由指向外網
access-list 1 permit 172.16.0.0 0.0.255.255 抓取內網流量
ip nat inside source list 1 interface FastEthernet0/0 overload 把內網流量轉化為從f0/0口出
SW1
ip routing 先開啟路由功能
interface range f0/2-3
channel-group 1 mode on 做channel
interface Port-channel 1
switchport trunk encapsulation dot1q
switchport mode trunk 此介面為trunk
interface FastEthernet0/1 配置IP
no switchport
ip address 172.16.0.2 255.255.255.252
ip summary-address eigrp 100 172.16.0.0 255.255.252.0 vlan2和vlan3的彙總
vtp domain ccna 做vtp
vtp passwd 123
vtp mode server
vlan 2 建立vlan
vlan 3
interface FastEthernet0/5
switchport trunk native vlan 2 vlan 2為native vlan
interface FastEthernet0/6
switchport trunk native vlan 3 vlan 3 為native vlan
spanning-tree vlan 2 root priority 做vlan 2 的主根
spanning-tree vlan 3 root secondary vlan 3 的備份根
interface Vlan2
ip address 172.16.1.1 255.255.255.128
standby 1 ip 172.16.1.126 虛擬閘道器地址
standby 1 priority 101 優先順序高一點
standby 1 preempt 開啟搶佔
standby 1 track FastEthernet0/1 上行鏈路追蹤
router eigrp 100 eigrp協議
network 172.16.0.0
auto-summary
interface Vlan3
ip address 172.16.1.129 255.255.255.128
standby 1 ip 172.16.1.254 虛擬閘道器地址
standby 1 preempt
standby 1 track FastEthernet0/1
ip dhcp pool v2
network 172.16.1.0 255.255.255.128
default-router 172.16.1.126
dns-server 8.8.8.8
ip dhcp pool v3
network 172.16.1.128 255.255.255.128
default-router 172.16.1.254
dns-server 8.8.8.8
SW2 配置基本和SW1一樣
SW3
interface FastEthernet0/1 做DTP
switchport mode dynamic desirable
interface FastEthernet0/2
switchport mode dynamic desirable
interface FastEthernet0/3 把介面劃入vlan
switchport mode access
switchport access vlan 2
interface FastEthernet0/4
switchport mode access
switchport access vlan 3
SW4,SW5配置和SW3基本一樣
配置到這裡就完了，大家有什麼問題可以評論裡問