需求：

1. AR1可ping防火墙FW1的G0/0/0口

2. AR1、AR2、AR3在不同区域

3. AR1可访问AR2

实现：

1. 配置各路由器的IP地址、静态路由

2. FW配置策略并将端口加入相关区域

 防火墙代码如下：

interface GigabitEthernet0/0/0
 undo shutdown
 ip address 1.1.1.2 255.255.255.0
# 默认不允许ping防火墙，此命令开启防火墙端口ping功能
 service-manage ping permit	
#
interface GigabitEthernet1/0/1
 undo shutdown
 ip address 3.3.3.2 255.255.255.0
#
interface GigabitEthernet1/0/2
 undo shutdown
 ip address 2.2.2.2 255.255.255.0
#
firewall zone local
 set priority 100
#
firewall zone trust
# 设置区域优先级，此处为默认
 set priority 85
# 将端口加入区域
 add interface GigabitEthernet0/0/0 
#
firewall zone untrust
 set priority 5
 add interface GigabitEthernet1/0/2
#
firewall zone dmz
 set priority 50
 add interface GigabitEthernet1/0/1
#
security-policy
#创建 icmp的规则
 rule name icmp
  source-address 1.1.1.1 mask 255.255.255.255
  destination-address 2.2.2.0 mask 255.255.255.0
  service icmp
  action permit

测试