好难好难
防火墙配置
access-list fx extended permit icmp any any access-group fx in in outside access-group fx out interface outside route outside 0.0.0.0 0.0.0.0 192.0.2.100 1 policy-map global_policy class inspection_default no inspect icmp exit object network INSIDE_NET subnet 192.168.1.0 255.255.255.0 nat (inside,outside) dynamic interface end