1、實驗目的：
將動態路由的rip和ospf、單臂路由、多鏈路聚合、nat地址轉換等知識綜合，學習其中的原理，和數據轉發過程。
2、實驗步驟：
第一步：在ar10上：
（-interface GigabitEthernet0/0/0
-ip address 10.1.100.1 255.255.255.0
-interface GigabitEthernet0/0/2
-ip address 10.1.135.2 255.255.255.0
-interface LoopBack0
-ip address 5.5.5.5 255.255.255.255
-rip 1
-version 2
-network 10.0.0.0
-network 5.0.0.0
）
第二步：在ar9上：
（-interface GigabitEthernet0/0/0.21
-dot1q termination vid 21
-ip address 10.1.21.1 255.255.255.0
-arp broadcast enable
-interface GigabitEthernet0/0/0.22
-dot1q termination vid 22
-ip address 10.1.22.1 255.255.255.0
-arp broadcast enable
-interface GigabitEthernet0/0/1
-ip address 10.1.134.2 255.255.255.0
-interface GigabitEthernet0/0/2
-ip address 10.1.135.1 255.255.255.0
-interface LoopBack0
-ip address 4.4.4.4 255.255.255.255
-rip 1
-version 2
-network 10.0.0.0
-network 4.0.0.0
）
第三步：在ar8上：
（
-interface GigabitEthernet0/0/0
-Ip address 10.1.113.2 255.255.255.0
-interface GigabitEthernet0/0/1
-ip address 10.1.134.1 255.255.255.0
-interface LoopBack0
-ip address 3.3.3.3 255.255.255.255
-ospf 1 router-id 3.3.3.3
-import-route rip 1 cost 5 type 1
-area 0.0.0.0
- network 3.3.3.3 0.0.0.0
-network 10.1.113.0 0.0.0.255
-rip 1
-default-route originate - version 2
-network 10.0.0.0
-import-route ospf 1
）
第四步：在ar7上：
（ -interface GigabitEthernet0/0/0
-ip address 10.1.113.1 255.255.255.0
-interface GigabitEthernet0/0/1
-ip address 10.1.111.1 255.255.255.0
-interface GigabitEthernet0/0/2
-ip address 10.1.112.1 255.255.255.0
-interface GigabitEthernet6/0/0
-ip address 202.2.12.2 255.255.255.0
-Nat server protocol tcp global 202.2.12.3 www inside 10.1.100.100 www
-nat outbound 2000
-acl number 2000
-rule 10 permit source 10.1.0.0 0.0.255.255
interface LoopBack0
ip address 2.2.2.2 255.255.255.255
-ospf 1 router-id 2.2.2.2
-default-route-advertise
-area 0.0.0.0
-network 2.2.2.2 0.0.0.0
-network 10.1.111.0 0.0.0.255
-network 10.1.112.0 0.0.0.255
-network 10.1.113.0 0.0.0.255
-ip route-static 0.0.0.0 0.0.0.0 202.2.12.1
）
第五步：在lsw8：
( -interface Vlanif11
-ip address 10.1.11.1 255.255.255.0
-interface Vlanif12
-ip address 10.1.12.1 255.255.255.0
-interface Vlanif1000
-ip address 10.1.122.11 255.255.255.0
-interface Vlanif1001
-ip address 10.1.111.12 255.255.255.0
-interface Eth-Trunk1
-port link-type access
-port default vlan 1000
-interface GigabitEthernet0/0/1
-port link-type access
-port default vlan 1001
-interface GigabitEthernet0/0/21
-port link-type access
-port default vlan 11
-interface GigabitEthernet0/0/22
-port link-type access
-port default vlan 12
-interface LoopBack0
-ip address 11.11.11.11 255.255.255.255
-ospf 1 router-id 11.11.11.11
-area 0.0.0.0
-network 11.11.11.11 0.0.0.0
-network 10.1.11.0 0.0.0.255
-network 10.1.12.0 0.0.0.255
-network 10.1.122.0 0.0.0.255
-network 10.1.111.0 0.0.0.255
第六步：在lsw9上
（-interface Vlanif13
-ip address 10.1.13.1 255.255.255.0
-interface Vlanif14
-ip address 10.1.14.1 255.255.255.0
-interface Vlanif1000
-ip address 10.1.122.12 255.255.255.0
-interface Vlanif1002
-ip address 10.1.112.12 255.255.255.0
-interface Eth-Trunk1
-port link-type access
-port default vlan 1000
-interface GigabitEthernet0/0/2
-port link-type access
-port default vlan 14
（interface GigabitEthernet0/0/11
eth-trunk 1
interface GigabitEthernet0/0/12
eth-trunk 1）
-interface GigabitEthernet0/0/23
-port link-type access
-port default vlan 13
-un sh
-interface LoopBack0
-ip address 22.22.22.22 255.255.255.255
-ospf 1 router-id 22.22.22.22
-area 0.0.0.0
-network 10.1.13.0 0.0.0.255
-network 10.1.14.0 0.0.0.255
-network 10.1.122.0 0.0.0.255
-network 10.1.112.0 0.0.0.255
-network 22.22.22.22 0.0.0.0
）
第七步：在lsw3上：其他的lsw34567的交換機都一樣
（-interface Ethernet0/0/1
-port link-type access
-port default vlan 11
-interface GigabitEthernet0/0/1
-port link-type access
-port default vlan 11
）
第八步：在ar6上：
（-interface GigabitEthernet0/0/0
-ip address 202.2.2.1 255.255.255.0
-interface GigabitEthernet0/0/1
-ip address 202.2.12.1 255.255.255.0
）
3、實驗抓包：
提取pc1：10.1.11.100 24來ping 外網的pc202.2.2.100 24
從中可以發現私網的pc1的10.1.11.100在訪問外網時在經過ar7時轉化爲外網地址202.2.12.2。