华为eNSP实验：NAT地址转换加端口地址映射

一、实验环境

eNSP V100R003C00SPC100版本

二、实验拓扑

三、实验需求

1,PC1通过NAT静态转换为8.8.8.8地址访问外网114.114.114.114

2,PC2和PC4通过NAT动态转换为212.0.0.0网段的地址访问外网地址114.114.114.114

3,PC3通过NAT端口多路复用访问外网地址114.114.114.114

4,外网13.0.0.2能够通过R1的端口映射访问企业网内部的httpd网页

四、实验步骤

配置PC1,PC2,PC3,PC4,Server

PC1配置

PC2配置

PC3配置

PC4配置

Server配置

1，设置地址

2，配置Httpd服务

新建一个html后缀的文本，在服务器信息中选择HttpServer的80端口，文件根目录中加入html后缀的文本。

LSW1三层交换机配置

sys
Enter system view, return user view with Ctrl+Z.
[LSW1]undo info-center enable  #关闭华为信息提示
Info: Information center is disabled.
[LSW1]vlan 10
[LSW1-vlan10]vlan 20
[LSW1-vlan20]vlan 30
[LSW1-vlan30]vlan 40
[LSW1-vlan40]vlan 50          #添加vlan
[LSW1-vlan50]int g0/0/1
[LSW1-GigabitEthernet0/0/1]p l a
[LSW1-GigabitEthernet0/0/1]p d v 10
[LSW1-GigabitEthernet0/0/1]un sh
Info: Interface GigabitEthernet0/0/1 is not shutdown.
[LSW1-GigabitEthernet0/0/1]int g0/0/2
[LSW1-GigabitEthernet0/0/2]p l a
[LSW1-GigabitEthernet0/0/2]p d v 20
[LSW1-GigabitEthernet0/0/2]un sh
Info: Interface GigabitEthernet0/0/2 is not shutdown.
[LSW1-GigabitEthernet0/0/2]int g0/0/3
[LSW1-GigabitEthernet0/0/3]p l a
[LSW1-GigabitEthernet0/0/3]p d v 30
[LSW1-GigabitEthernet0/0/3]un sh
Info: Interface GigabitEthernet0/0/3 is not shutdown.
[LSW1-GigabitEthernet0/0/3]int g0/0/4
[LSW1-GigabitEthernet0/0/4]p l a 
[LSW1-GigabitEthernet0/0/4]p d v 20
[LSW1-GigabitEthernet0/0/4]un sh
Info: Interface GigabitEthernet0/0/4 is not shutdown.
[LSW1-GigabitEthernet0/0/4]int g0/0/6
[LSW1-GigabitEthernet0/0/6]p l a
[LSW1-GigabitEthernet0/0/6]p d v 50
[LSW1-GigabitEthernet0/0/6]un sh
Info: Interface GigabitEthernet0/0/6 is not shutdown.
[LSW1-GigabitEthernet0/0/6]int g0/0/5
[LSW1-GigabitEthernet0/0/5]p l a
[LSW1-GigabitEthernet0/0/5]p d v 40
[LSW1-GigabitEthernet0/0/5]un sh
Info: Interface GigabitEthernet0/0/5 is not shutdown.
[LSW1-GigabitEthernet0/0/5]                           #把接口加入vlan
[LSW1-GigabitEthernet0/0/5]int vlanif 10
[LSW1-Vlanif10]ip add 192.168.10.1 24
[LSW1-Vlanif10]int vlanif 20
[LSW1-Vlanif20]ip add 192.168.20.1 24
[LSW1-Vlanif20]int vlanif 30
[LSW1-Vlanif30]ip add 192.168.30.1 24
[LSW1-Vlanif30]int vlanif 40
[LSW1-Vlanif40]ip add 11.0.0.2 24
[LSW1-Vlanif40]int vlanif 50
[LSW1-Vlanif50]ip add 192.168.50.1 24      #进入虚拟接口配置IP
[LSW1-Vlanif50]q
[LSW1]ip route-static 0.0.0.0 0.0.0.0 11.0.0.1   #向上配置默认路由出去

R1配置

静态NAT

[R1]int g0/0/0
[R1-GigabitEthernet0/0/0]ip add 11.0.0.1 24
Info: Interface GigabitEthernet0/0/0 is not shutdown.
[R1-GigabitEthernet0/0/1]int g0/0/1
[R1-GigabitEthernet0/0/1]ip add 12.0.0.1 24
Dec 13 2019 10:11:23-08:00 R1 %%01IFNET/4/LINK_STATE(l)[1]:The line protocol IP 
on the interface GigabitEthernet0/0/1 has entered the UP state. 
[R1-GigabitEthernet0/0/1]un sh                
Info: Interface GigabitEthernet0/0/1 is not shutdown.            #配置接口IP
[R1-GigabitEthernet0/0/0]q
[R1]nat static global 8.8.8.8 inside 192.168.10.10
[R1-GigabitEthernet0/0/1]nat static enable                #在全局配置静态NAT，在接口声明 

动态NAT

[R1]nat address-group 1 212.0.0.100 212.0.0.200               
[R1]acl 2000
[R1-acl-basic-2000]rule permit source 192.168.20.0 0.0.0.255   #在全局配置静态NAT，在接口声明
[R1-acl-basic-2000]int g0/0/1
[R1-GigabitEthernet0/0/1]nat outbound 2000 address-group 1 no-pat 

端口多路复用NAT

[R1-GigabitEthernet0/0/1]q
[R1]acl 3000
R1-acl-adv-3000]rule permit ip source 192.168.30.0 0.0.0.255      
[R1-acl-adv-3000]int g0/0/1
[R1-GigabitEthernet0/0/1]nat outbound 3000

端口映射

[R1]int g0/0/1
[R1-GigabitEthernet0/0/1]nat server protocol tcp global 9.9.9.9 www inside 192.1
68.50.100 www                      #进入接口配置端口映射

路由表

[R1]ip route-static 0.0.0.0 0.0.0.0 12.0.0.2   #向上配置默认到外网
[R1]ip route-static 192.168.10.0 24 11.0.0.2
[R1]ip route-static 192.168.20.0 24 11.0.0.2    #向下配置静态
[R1]ip route-static 192.168.30.0 24 11.0.0.2
[R1]ip route-static 192.168.50.0 24 11.0.0.2

R2配置

[R2]int g0/0/0
[R2-GigabitEthernet0/0/0]ip add 13.0.0.1 24
[R2-GigabitEthernet0/0/0]un sh
Info: Interface GigabitEthernet0/0/0 is not shutdown.
[R2-GigabitEthernet0/0/0]int g0/0/1
[R2-GigabitEthernet0/0/1]ip add 12.0.0.2 24
[R2-GigabitEthernet0/0/1]un sh
Info: Interface GigabitEthernet0/0/1 is not shutdown.
[R2-GigabitEthernet0/0/1]int loo 0                #配置环回地址测试
[R2-LoopBack0]ip add 114.114.114.114 32
[R2]ip route-static 8.8.8.8 32 12.0.0.1      #配置静态路由到NAT服务器R1
[R2]ip route-static 212.0.0.0 24 12.0.0.1
[R2]ip route-static 9.9.9.9 32 12.0.0.1

Cloud1配置

在vmware虚拟机中开一台w10虚拟机，绑定vmware的2号网卡；
设置w10虚拟机IP

五、抓包测试NAT转换

测试需求1

PC1通过8.8.8.8地址访问外网，抓包R2的g0/0/1接口

测试需求2

PC2通过212.0.0.0段落池的地址访问外网，抓包R2的g0/0/1接口

测试需求3

PC3通过12.0.0.1访问外网，抓包R2的g0/0/1接口

六、测试NAT端口映射

测试需求4

在Cloud中访问9.9.9.9网页能进入内部网页