HUAWEI——华为防火墙基础_华为防火墙透传模式

华为防火墙基础

---

一、防火墙的工作原理

1、防火墙的工作模式

1、路由模式：如果华为防火墙连接网络的接口配置IP地址，则认为防火墙工作在路由模式下。
2、透明模式：如果华为防火墙通过第二层对外连接（接口无IP地址），则防火墙工作在透明模式下。
3、混合模式：如果华为防火墙既存在工作在路由模式的接口（接口具有IP地址） 又存在工作在透明模式的接口（接口无P地址） 则防火墙工作在混合模式下。

2、华为防火墙的安全区域划分

1、Trust区域：主要用于连接公司内部网络，优先级为85，安全等级较高。
2、 DMZ区域：在防火墙中通常定义为需要对外提供服务的网络，其安全性介于Trust区域和Untrust区域之 间优先级为50，安全等级中等 。
3、Untrust区域：通常定义外部网络，优先级功5，安全级别很低，Untrust区域表示不受信任的区域。
4、Local区域：通常定义防火墙本身，优先级为100。防火墙除了转发区域之间的报文之外还需要自身接收或发送流量。
5、其他区域：用户自定义区域，默认最多自定义16个区域，自定义区域没有默认优先级，所以需要手工指定。

3、防火墙Inbound和Outbound

入方向(Inbound)：数据由低级别的安全区域向高级别的安全区域传输的方向 。
出方向(Outbound)：数据由高级别的安全区域向低级别的安全区域传输的方向。

二、设备管理方式

1、Telnet管理方式及配置

1、配置初始管理密码

Please Press ENTER.

An initial password is required for the first login via the console.
Set a password and keep it safe. Otherwise you will not be able to login via the
 console.

Please configure the login password (8-16)
Enter Password:       //8-16位密码
Confirm Password:
Warning: The authentication mode was changed to password authentication and the 
user level was changed to 15 on con0 at the first user login.
Warning: There is a risk on the user-interface which you login through. Please c
hange the configuration of the user-interface as soon as possible. 

*************************************************************************
*         Copyright (C) 2014-2015 Huawei Technologies Co., Ltd.         *
*                           All rights reserved.                        *
*               Without the owner's prior written consent,              *
*        no decompiling or reverse-engineering shall be allowed.        *
*************************************************************************
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

2、配置防火墙的接口IP地址

[USG6000V1]int g0/0/0
[USG6000V1-GigabitEthernet0/0/0]ip add 192.168.0.1 24
Error: The address already exists.
[USG6000V1-GigabitEthernet0/0/0]un sh
Info: Interface GigabitEthernet0/0/0 is not shutdown.
[USG6000V1-GigabitEthernet0/0/0]int g1/0/0
[USG6000V1-GigabitEthernet1/0/0]ip add 192.168.1.1 24
[USG6000V1-GigabitEthernet1/0/0]un sh
Info: Interface GigabitEthernet1/0/0 is not shutdown.
[USG6000V1-GigabitEthernet1/0/0]int g1/0/1
[USG6000V1-GigabitEthernet1/0/1]ip add 192.168.2.1 24
[USG6000V1-GigabitEthernet1/0/1]un sh
Info: Interface GigabitEthernet1/0/1 is not shutdown.
[USG6000V1-GigabitEthernet1/0/1]int g1/0/2
[USG6000V1-GigabitEthernet1/0/2]ip add 192.168.3.1 24
[USG6000V1-GigabitEthernet1/0/2]un sh
Info: Interface GigabitEthernet1/0/2 is not shutdown.
[USG6000V1-GigabitEthernet1/0/2]quit
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18

3、打开防火墙的Telnet功能

[USG6000V1]telnet server enable
Warning: Telnet is not a secure protocol, and it is recommended to use Stelnet.
1
2

4、配置防火墙允许远程管理

[USG6000V1]int g0/0/0
[USG6000V1-GigabitEthernet0/0/0]service-manage enable       //配置接口管理模式
[USG6000V1-GigabitEthernet0/0/0]service-manage telnet permit       //允许Telnet 
[USG6000V1-GigabitEthernet0/0/0]quit
1
2
3
4

5、将防火墙接口GigabitEthernet0/0/0加入安全区域

[USG6000V1]firewall zone trust
[USG6000V1-zone-trust]add int g0/0/0
 Error: The interface has been added to trust security zone.        //该接口默认在安全区域
[USG6000V1-zone-trust]quit
1
2
3
4

6、将接口加入安全区域

[USG6000V1]firewall zone trust        //信任区域
[USG6000V1-zone-trust]add int g1/0/0
[USG6000V1-zone-trust]quit
[USG6000V1]firewall zone untrust        //不信任区域
[USG6000V1-zone-untrust]add int g1/0/1
[USG6000V1-zone-untrust]quit
1
2
3
4
5
6

7、将防火墙配置域间包过滤，以保证网络基本通信正常

[USG6000V1]security-policy 
[USG6000V1-policy-security]rule name allow_telnet       //配置名为allow_telnet的规则
[USG6000V1-policy-security-rule-allow_telnet]source-zone trust       //从trust
[USG6000V1-policy-security-rule-allow_telnet]destination-zone local       //到达目的地local
[USG6000V1-policy-security-rule-allow_telnet]action permit        //配置动作
[USG6000V1-policy-security-rule-allow_telnet]quit
[USG6000V1-policy-security]quit
1
2
3
4
5
6
7

8、配置认证模式及本地用户信息

[USG6000V1]user-interface vty 0 4
[USG6000V1-ui-vty0-4]authen aaa        //用户接口的验证方式为AAA
Warning: The level of the user-interface(s) will be the default level of AAA use
rs, please check whether it is correct.
[USG6000V1-ui-vty0-4]protocol inbound telnet         //允许telnet连接虚拟终端
[USG6000V1-ui-vty0-4]quit
[USG6000V1]aaa
[USG6000V1-aaa]manager-user demo        // 配置本地用户demo
[USG6000V1-aaa-manager-user-demo]password cipher demo@1234        // 配置密码
Info: You are advised to config on man-machine mode.
[USG6000V1-aaa-manager-user-demo]service-type telnet        // 配置服务类型telnet
Warning: The user access modes include Telnet or FTP, so security risks exist.
[USG6000V1-aaa-manager-user-demo]level 3        //配置用户权限级别
[USG6000V1-aaa-manager-user-demo]quit
1
2
3
4
5
6
7
8
9
10
11
12
13
14

9、测试从telnet登录防火墙，首次登录需要修改密码，然后再重新用新密码连接

2、配置Web方式登录设备

[USG6000V1]int g0/0/0
[USG6000V1-GigabitEthernet0/0/0]service-manage http permit         //打开接口的http和https管理
[USG6000V1-GigabitEthernet0/0/0]service-manage https permit
[USG6000V1-GigabitEthernet0/0/0]quit
[USG6000V1]firewall zone trust 
[USG6000V1-zone-trust]add int g0/0/0        //接口加入trust区域
 Error: The interface has been added to trust security zone. 
[USG6000V1-zone-trust]quit
[USG6000V1]security-policy        // 配置安全策略
[USG6000V1-policy-security]rule name allow_web        //配置名为allow_web的规则
[USG6000V1-policy-security-rule-allow_web]source-zone trust
[USG6000V1-policy-security-rule-allow_web]destination-zone local        //指定条件
[USG6000V1-policy-security-rule-allow_web]action permit        // 指定动作
[USG6000V1-policy-security-rule-allow_web]quit
[USG6000V1-policy-security]quit
[USG6000V1]web-manager security enable        // 开启https功能
 Info: Web security-server has been enabled.
[USG6000V1]aaa        //配置aaa以及本地用户
[USG6000V1-aaa]manager-user demo        //以man-machine 的方式配置密码， 在此模式下， 输入的密码屏幕上不可见
[USG6000V1-aaa-manager-user-demo]password 

Enter Password:

Confirm Password:
[USG6000V1-aaa-manager-user-demo]service-type web        //指定用户类型
[USG6000V1-aaa-manager-user-demo]level 3        //指定权限级别
[USG6000V1-aaa-manager-user-demo]quit
[USG6000V1-aaa]quit
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28

3、配置SSH方式登录设备

[USG6000V1]int g0/0/0
[USG6000V1-GigabitEthernet0/0/0]service-manage enable 
[USG6000V1-GigabitEthernet0/0/0]service-manage ssh permit 
[USG6000V1-GigabitEthernet0/0/0]quit
[USG6000V1]firewall zone trust
[USG6000V1-zone-trust]add int g0/0/0
 Error: The interface has been added to trust security zone. 
[USG6000V1-zone-trust]quit
[USG6000V1]security-policy 
[USG6000V1-policy-security]rule name allow_ssh
[USG6000V1-policy-security-rule-allow_ssh]source-zone trust
[USG6000V1-policy-security-rule-allow_ssh]destination-zone local
[USG6000V1-policy-security-rule-allow_ssh]action permit
[USG6000V1-policy-security-rule-allow_ssh]quit
[USG6000V1-policy-security]quit
[USG6000V1]rsa local-key-pair create        //创建所需的密钥对
The key name will be: USG6000V1_Host
The range of public key size is (512 ~ 2048). 
NOTES: If the key modulus is greater than 512, 
       it will take a few minutes.
Input the bits in the modulus[default = 2048]:
Generating keys...
.+++++
........................++
....++++
...........++

[USG6000V1]user-manage vty 0 4
[USG6000Vl-ui-vty0-4]authentication-mode aaa
[USG6000Vl-ui-vty0-4]protocol inbound ssh
[USG6000Vl-ui-vty0-4Jquit
[USG6000Vl]ssh user test
[USG6000Vl]ssh user test authentication-type password
[USG6000Vl]ssh user test service-type stelnet        //配置服务类型
[USG6000Vl]aaa
[USG6000Vl-aaa]rnanager-user test        //创建本地用户test
[USG6000Vl-aaa-manager-user-test]password cipher test@123        //指定密码
[USG6000Vl-aaa-manager-user-test]service-type ssh
[USG6000Vl-aaa-manager-user-test]level 3
[USG6000Vl-aaa-manager-user-test]quit
[USG6000Vl-aaa]quit
[USG6000Vl]stelnet server enable        //开启SSH
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42

4、配置安全策略

1、让内部的pc1可以ping通外部的主机

[USG6000V1]security-policy 
[USG6000V1-policy-security]rule name pc1toout
[USG6000V1-policy-security-rule-pc1toout]source 192.168.1.2 32
[USG6000V1-policy-security-rule-pc1toout]destination-zone untrust 
[USG6000V1-policy-security-rule-pc1toout]service icmp
[USG6000V1-policy-security-rule-pc1toout]action permit 
[USG6000V1-policy-security-rule-pc1toout]quit
[USG6000V1-policy-security]quit
1
2
3
4
5
6
7
8

查看会话

[USG6000V1]display firewall session table 
 Current Total Sessions : 1
 netbios-data  VPN: default --> default  192.168.0.2:138 --> 192.168.0.255:138
1
2
3

2、让外部的主机可以访问dmz中的ftp，http以及ping

[USG6000V1]security-policy 
[USG6000V1-policy-security]rule name outtodmz
[USG6000V1-policy-security-rule-outtodmz]source-zone untrust 
[USG6000V1-policy-security-rule-outtodmz]destination-address 192.168.3.2 32
[USG6000V1-policy-security-rule-outtodmz]service icmp
[USG6000V1-policy-security-rule-outtodmz]service http
[USG6000V1-policy-security-rule-outtodmz]service ftp
[USG6000V1-policy-security-rule-outtodmz]action permit 
[USG6000V1-policy-security-rule-outtodmz]quit
[USG6000V1-policy-security]quit
1
2
3
4
5
6
7
8
9
10

三、NAT概述

1、NAT分类

1、NAT No- PAT：类似于Cisco的动态转换，只转换源IP地址不转换端口，属于多对多转换。
2、NAPT（网络地址和端口转换） ：类似于Cisco 的PAT转换，NAPT既转换报文的源地址，又转换源端口。转换后的地址不能是外网接口IP地址，属于多对多或多对一转换。
3、出接口地址（Easy-IP）：和NAPT— 样，既转换源IP地址又转换源端口。区别是出接口地址方式转换后的地址只能是NAT设备外网接口所配置的IP地址，属于多对—转换。
4、Smart NAT (智能转换）：通过预留一个公网地址进行NAPT转换而其他的公网地址用来进行NAT No-PAT转换。
5、三元组NAT：与源IP地址源端口和协议类型有关的—种转换，将源IP地址和源端口转换为固定公网IP地址和端口。

2、NAT配置

1、NAT No- PAT方式的地址转换
配置网络参数及路由

[USG6000V1]int g1/0/1
[USG6000V1-GigabitEthernet1/0/1]ip add 192.168.1.254 24
[USG6000V1-GigabitEthernet1/0/1]un sh
Info: Interface GigabitEthernet1/0/1 is not shutdown.
[USG6000V1-GigabitEthernet1/0/1]int g1/0/0
[USG6000V1-GigabitEthernet1/0/0]ip add 202.96.1.1 24
[USG6000V1-GigabitEthernet1/0/0]un sh
Info: Interface GigabitEthernet1/0/0 is not shutdown.
[USG6000V1-GigabitEthernet1/0/0]quit
[USG6000V1]ip route-static 0.0.0.0 0.0.0.0 202.96.1.2
1
2
3
4
5
6
7
8
9
10

配置安全策略

[USG6000V1]firewall zone trust 
[USG6000V1-zone-trust]add int g1/0/1        //内网接口加入trust区域
[USG6000V1-zone-trust]quit
[USG6000V1]firewall zone untrust 
[USG6000V1-zone-untrust]add int g1/0/0        //外网接口加入untrust区域
[USG6000V1-zone-untrust]quit
[USG6000V1]security-policy        //配置安全策略
[USG6000V1-policy-security]rule name sec_1        //配置第 一 个规则并指定规则名sec_1
[USG6000V1-policy-security-rule-sec_1]source-zone trust        //指定条件
[USG6000V1-policy-security-rule-sec_1]destination-zone untrust         //内网到外网
[USG6000V1-policy-security-rule-sec_1]source-address 192.168.1.0 24        //允许192.168.1.0网段通过
[USG6000V1-policy-security-rule-sec_1]action permit         //指定动作
[USG6000V1-policy-security-rule-sec_1]quit
[USG6000V1-policy-security]quit
1
2
3
4
5
6
7
8
9
10
11
12
13
14

配置NAT地址组

[USG6000V1]nat address-group natgroup        //配置NAT地址组，指定名称natgroup
[USG6000V1-address-group-natgroup]section 0 202.96.1.10 202.96.1.11        //指定地址组的起始地址和结束地址
[USG6000V1-address-group-natgroup]mode no-pat local        //指定地址组的模式为no-pat
[USG6000V1-address-group-natgroup]quit
1
2
3
4

配置NAT策略

[USG6000V1]nat-policy        //配置NAT策略
[USG6000V1-policy-nat]rule name natpolicy        //配置名称为natpolicy的NAT规则
[USG6000V1-policy-nat-rule-natpolicy]source-address 192.168.1.0 24        //192.168.1.0网段
[USG6000V1-policy-nat-rule-natpolicy]source-zone trust         //来自trust
[USG6000V1-policy-nat-rule-natpolicy]destination-zone untrust        //去往untrust
[USG6000V1-policy-nat-rule-natpolicy]action nat address-group natgroup        //满足条件的数据包将依据地址组做NAT No-PAT方式的源地址转换
[USG6000V1-policy-nat-rule-natpolicy]quit
[USG6000V1-policy-nat]quit
1
2
3
4
5
6
7
8

针对转换后的全局地址（NAT地址组中的地址）配置黑洞路由

[USG6000V1]ip route-static 202.96.1.10 32 NULL 0        //将转换后的地址所在的网络指向空接口
[USG6000V1]ip route-static 202.96.1.11 32 NULL 0        //防火墙接收到的数据包匹配黑洞路由时将被丢弃
所以不会形成环路
1
2
3

2、出接口地址（easy-ip）方式的地址转换
之前同上，配置NAT策略

[USG6000V1]nat-policy        //配置NAT策略
[USG6000V1-policy-nat]rule name natpolicy        //配置名称为natpolicy的NAT规则
[USG6000V1-policy-nat-rule-natpolicy]source-address 192.168.1.0 24        //192.168.1.0网段
[USG6000V1-policy-nat-rule-natpolicy]source-zone trust         //来自trust
[USG6000V1-policy-nat-rule-natpolicy]destination-zone untrust        //去往untrust
[USG6000V1-policy-nat-rule-natpolicy]action nat easy-ip        //配置出接口方式
[USG6000V1-policy-nat-rule-natpolicy]quit
[USG6000V1-policy-nat]quit
1
2
3
4
5
6
7
8

3、NAT Server
配置网络参数及路由

[USG6000V1]int g1/0/1
[USG6000V1-GigabitEthernet1/0/1]ip add 192.168.1.254 24
[USG6000V1-GigabitEthernet1/0/1]un sh
Info: Interface GigabitEthernet1/0/1 is not shutdown.
[USG6000V1-GigabitEthernet1/0/1]int g1/0/0
[USG6000V1-GigabitEthernet1/0/0]ip add 202.96.1.1 24
[USG6000V1-GigabitEthernet1/0/0]un sh
Info: Interface GigabitEthernet1/0/0 is not shutdown.
[USG6000V1-GigabitEthernet1/0/0]quit
[USG6000V1]ip route-static 0.0.0.0 0.0.0.0 202.96.1.2
1
2
3
4
5
6
7
8
9
10

配置安全策略

[USG6000V1]firewall zone trust
[USG6000V1-zone-trust]add int g1/0/1
[USG6000V1-zone-trust]quit
[USG6000V1]firewall zone untrust 
[USG6000V1-zone-untrust]add int g1/0/0
[USG6000V1-zone-untrust]quit
[USG6000V1]security-policy 
[USG6000V1-policy-security]rule name sec_1
[USG6000V1-policy-security-rule-sec_1]source-zone untrust 
[USG6000V1-policy-security-rule-sec_1]destination-zone trust 
[USG6000V1-policy-security-rule-sec_1]destination-address 192.168.1.0 24
[USG6000V1-policy-security-rule-sec_1]service permit
 Error: The specified object permit does not exist.
[USG6000V1-policy-security-rule-sec_1]service ftp        //配置条件为ftp协议
[USG6000V1-policy-security-rule-sec_1]action permit 
[USG6000V1-policy-security-rule-sec_1]quit
[USG6000V1-policy-security]quit
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

配詈FTP应用层检测（默认已开启）

[USG6000V1]firewall interzone trust untrust 
[USG6000V1-interzone-trust-untrust]detect ftp
[USG6000V1-interzone-trust-untrust]quit
1
2
3

配置 NAT Server

[USG6000V1]nat server natserver_ftp protocol tcp global 202.96.10.10 21 inside 
192.168.1.10 21        //外网用户访问202.96.10.10: 21瑞口时，将转换地址和端口为192.168.1.10:21发送到内网服务器
1
2

配置黑洞路由

[USG6000V1]ip route-static 202.96.10.10 32 NULL 0
1

查看名称为natpolicy的NAT策略

[USG6000V1]display nat-policy rule natpolicy
1

四、防火墙双机热备

双机热备配置

模式
1、热备模式：同一时间只有一台防火场转发数据包，其他防火墙不转发数据包，但是会同步会话表及Server-map表。
2、负载均衡模式：同一时间，多台防火姗同时转发数据，但每个防火墙又作为其他防火墙的备用设备，即每个防火墙既是主用设备也是备用设备，防火墙之间同步会话表及Server-map表。

接口加入安全区域并配置安全策略

[FW1]firewall zone trust
[FW1-zone-trust]add int g1/0/2
[FW1-zone-trust]firewall zone dmz
[FW1-zone-dmz]add int g1/0/1
[FW1-zone-dmz]firewall zone untrust
[FW1-zone-untrust]add int g1/0/0
[FW1-zone-untrust]quit
[FW1]security-policy 
[FW1-policy-security]rule name permit_head
[FW1-policy-security-rule-permit_head]source-zone local
[FW1-policy-security-rule-permit_head]destination-zone dmz
[FW1-policy-security-rule-permit_head]action permit
[FW1-policy-security-rule-permit_head]quit
[FW1-policy-security]rule name permit_trust_untrust
[FW1-policy-security-rule-permit_trust_untrust]source-zone trust
[FW1-policy-security-rule-permit_trust_untrust]destination-zone untrust 
[FW1-policy-security-rule-permit_trust_untrust]action permit 
[FW1-policy-security-rule-permit_trust_untrust]quit
[FW1-policy-security]quit
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19

[FW2]security-policy 
[FW2-policy-security]rule name permit_head
[FW2-policy-security-rule-permit_head]source-zone local
[FW2-policy-security-rule-permit_head]destination-zone dmz
[FW2-policy-security-rule-permit_head]action permit 
[FW2-policy-security-rule-permit_head]quit
[FW2-policy-security]rule name permit_trust_untrust
[FW2-policy-security-rule-permit_trust_untrust]source-zone trust
[FW2-policy-security-rule-permit_trust_untrust]destination-zone untrust
[FW2-policy-security-rule-permit_trust_untrust]action permit 
[FW2-policy-security-rule-permit_trust_untrust]quit
[FW2-policy-security]quit
1
2
3
4
5
6
7
8
9
10
11
12

配置VRRP备份组

[FW1]int g1/0/2
[FW1-GigabitEthernet1/0/2]vrrp vrid 1 virtual-ip 192.168.1.100 active    //设置本端状态
[FW1-GigabitEthernet1/0/2]quit
[FW1]int g1/0/0
[FW1-GigabitEthernet1/0/0]vrrp vrid 2 virtual-ip 10.1.1.100 active    //设置本端状态
[FW1-GigabitEthernet1/0/0]quit
[FW1]hrp interface GigabitEthernet 1/0/1 remote 172.16.1.2    //配置心跳接口
[FW1]hrp enable    //启动双机热备
HRP_M[FW1]hrp auto-sync     //配置自动备份模式

[FW2]int g1/0/2
[FW2-GigabitEthernet1/0/2]vrrp vrid 1 virtual-ip 192.168.1.100 standby     //设置对端状态
[FW2-GigabitEthernet1/0/2]quit
[FW2]int g1/0/0
[FW2-GigabitEthernet1/0/0]vrrp vrid 2 virtual-ip 10.1.1.100 standby     //设置对端状态
[FW2-GigabitEthernet1/0/0]quit
[FW2]hrp interface GigabitEthernet 1/0/1 remote 172.16.1.1    //配置心跳接口
[FW2]hrp enable    //启用双机热备
HRP_S[FW2]hrp auto-sync     //配置自动备份模式
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19

查看双机热备的状态信息

HRP_M[FW1]display hrp state
 Role: active, peer: standby
 Running priority: 45000, peer: 45000
 Core state: normal, peer: normal
 Backup channel usage: 0.00%
 Stable time: 0 days, 0 hours, 0 minutes
 Last state change information: 2020-03-25 7:14:52 HRP core state changed, old_s
tate = abnormal(standby), new_state = normal, local_priority = 45000, peer_prior
ity = 45000.
1
2
3
4
5
6
7
8
9

查看心跳接口状态

HRP_M[FW1]disp	
HRP_M[FW1]display hrp int
             GigabitEthernet1/0/1 : running
1
2
3