华为防火墙NAT配置

实验拓扑图：

实验文档

 

配置R1 R2的IP地址

R1：

Huawei]sy

[Huawei]sysname r1

[r1]int g0/0/0

[r1-GigabitEthernet0/0/0]ip add 192.168.10.1 24

 

[r1-GigabitEthernet0/0/0]int g0/0/1

[r1-GigabitEthernet0/0/1]ip add 11.0.0.2 24

 

[r1]ip route-static 0.0.0.0 0.0.0.0 11.0.0.1 

 

 

R2：

[Huawei]sy

[Huawei]sysname r2

[r2]int g0/0/0

[r2-GigabitEthernet0/0/0]ip add 12.0.0.2 24

 

 

 

sy

18:53:08  2017/10/13

Enter system view, return user view with Ctrl+Z.

[SRG]

[SRG]int g0/0/0

[SRG-GigabitEthernet0/0/0]ip add 11.0.0.1 24

 

[SRG-GigabitEthernet0/0/0]int g0/0/1

[SRG-GigabitEthernet0/0/1]ip add 12.0.0.1 24

 

[SRG]firewall zone trust

[SRG-zone-trust]add interface g0/0/0 将接口加入trust区域（默认安全级别85）

 

[SRG]firewall zone untrust

[SRG-zone-untrust]add interface g0/0/1 将接口键入untrust区域（安全级别5）

 

[SRG]ip route-static 192.168.10.0 24 11.0.0.2

 

 

静态NAT: 一对一

[SRG]nat server global 12.0.0.10 inside 192.168.10.10

配置将内网地址192.168.10.10 映射到12.0.0.10地址

 

[SRG]policy interzone trust untrust outbound  

进入trust到untrust出口方向策略

[SRG-policy-interzone-trust-untrust-outbound]policy 1 创建一个策略

[SRG-policy-interzone-trust-untrust-outbound-1]policy service service-set icmp 服务为ICMP协议

[SRG-policy-interzone-trust-untrust-outbound-1]action  permit

 

测试：

在PC1上PING

在R2 上抓包，看看地址是否是12.0.0.10

静态pat：将公网地址的某个端口映射到私网的某个端口

 

[SRG]nat server protocol tcp global interface g0/0/1 23 inside

将出口g/0/1的23端口映射到内网的R1的23端口

[SRG]policy interzone trust untrust  inbound

[SRG-policy-interzone-trust-untrust-inbound]policy 1

[SRG-policy-interzone-trust-untrust-inbound-1]policy  service service-set telnet 配置为telent协议

[SRG-policy-interzone-trust-untrust-inbound-1]action permit

 

测试：

动态NAT ： 多对多

 

[SRG]nat address-group 1 12.0.0.20 12.0.0.30 创建nat地址池 

 

[SRG]nat-policy interzone trust untrust outbound

[SRG-nat-policy-interzone-trust-untrust-outbound]policy 1

[SRG-nat-policy-interzone-trust-untrust-outbound-1]policy source 192.168.10.0 mask 24 配置源IP地址

[SRG-nat-policy-interzone-trust-untrust-outbound-1]action source-nat 配置动作为源IP进行nat

[SRG-nat-policy-interzone-trust-untrust-outbound-1]address-group 1 no-pat   关联nat地址池

 

测试：

在R2上抓包看看地址是否改变：

改变下PC机地址：

查看抓包结果：

动态PAT: 一个公网地址带N个私网地址上网：

 

[SRG]nat-policy interzone trust untrust outbound

[SRG-nat-policy-interzone-trust-untrust-outbound]policy 2

[SRG-nat-policy-interzone-trust-untrust-outbound-2]policy source 192.168.10.0 mask 24 配置源IP地址

 

[SRG-nat-policy-interzone-trust-untrust-outbound-2]action source-nat  

配置动作为源IP进行nat

[SRG-nat-policy-interzone-trust-untrust-outbound-2]easy-ip GigabitEthernet 0/0/1 配置要转换的地址为g/0/1

 

测试：PC1 ping 12.0.0.2 看地址是否为12.0.0.1

抓包：