要求：
1、Trust区域用户可以访问Untust区域与DMZ区域用户；
2、Untrust区域用户只能访问DMZ区域ICMP与Telnet流量；
3、DMZ区域用户即不能访问Untrust区域和Tust区域；
4、区域trust内只允许源地址为192.168.1.0/24,ICMP ；
二、基础配置
防火墙huaweiFW
system-view
sysname huaweiFW
interface GigabitEthernet0/0/0
ip address 202.100.1.10 255.255.255.0
quit
interface GigabitEthernet0/0/1
ip address 172.16.1.10 255.255.255.0
quit
interface GigabitEthernet0/0/2
ip address 192.168.1.10 255.255.255.0
quit
interface GigabitEthernet0/0/3
ip address 192.168.10.10 255.255.255.0
quit
firewall zone trust
add interface GigabitEthernet0/0/2
add interface GigabitEthernet0/0/3
quit
firewall zone untrust
add interface GigabitEthernet0/0/0
quit
firewall zone dmz
add interface GigabitEthernet0/0/1
quit
AR1：
system-view
sysname AR5
interface GigabitEthernet0/0/0
ip address 192.168.10.1 255.255.255.0
quit
ip route-static 0.0.0.0 0.0.0.0 192.168.10.1
AR2
system-view
sysname DMZ
interface GigabitEthernet 0/0/0
ip address 172.16.1.1 24
quit
ip route-static 0.0.0.0 0 172.16.1.10
AR3
system-view
sysname trust
interface GigabitEthernet 0/0/0
ip address 192.168.1.1 24
interface loopback0
ip address 2.2.2.2 32
quit
ip route-static 0.0.0.0 0 192.168.1.10
quit
AR5
system-view
sysname trust
interface GigabitEthernet 0/0/0
ip address 192.168.1.1 24
interface loopback0
ip address 2.2.2.2 32
quit
ip route-static 0.0.0.0 0 192.168.1.10
quit
三、防火墙策略配置
防火墙默认策略为：
#
firewall packet-filter default permit interzone local trust direction inbound
firewall packet-filter default permit interzone local trust direction outbound
firewall packet-filter default permit interzone local untrust direction outbound
firewall packet-filter default permit interzone local dmz direction outbound
#
firewall session link-state check ==启用会话链路状态检查
firewall packet-filter default deny all ==拒绝所有流量
配值安全访问策略
firewall packet-filter default permit interzone trust untrust direction outbound
policy interzone dmz untrust inbound
policy 1
action permit
policy service service-set icmp
policy destination 172.16.1.1 0
policy 2
action permit
policy service service-set telnet
policy destination 172.16.1.1 0
查看会话：
[huaweiFW]display policy interzone untrust dmz inbound
15:17:51 2015/02/02
policy interzone dmz untrust inbound
firewall default packet-filter is deny
policy 1 (2 times matched)
action permit
policy service service-set icmp (predefined)
policy source any
policy destination 172.16.1.1 0
policy 2 (4 times matched)
action permit
policy service service-set telnet (predefined)
policy source any
policy destination 172.16.1.1 0
[huaweiFW]
policy zone trust
policy 1
action permit
policy service service-set icmp
policy source 192.168.1.0 mask 255.255.255.0
policy 2
action deny
