思科5505防火墙内外网IP映射问题，求教

防火墙先配置防控列表，类似下面的：一个放到内网口，一个放到外网口 access-list acl_in extended permit icmp any any access-list acl_in extended permit ip 172.1.1.0 255.255.255.0 any access-list acl_in extended permit tcp any any eq 8000 access-list acl_in extended permit tcp any any