Cisco ASA 5510 从inside访问DMZ

拓扑很简单.
 一台Cisco ASA 5510配置了２个接口，１个inside口(10.0.0.0/8),１个dmz口(20.0.0.0/8),两个接口下各接了一台PC地址为10.0.0.2和20.0.0.2,配置如下:
 
interface Ethernet0/2
 nameif dmz
 security-level 50
 ip address 20.0.0.1 255.0.0.0
 
interface Ethernet0/3
 nameif inside
 security-level 100
 ip address 10.0.0.1 255.0.0.0
 
nat-control
 
access-list 100 permit icmp any any
 
access-group 100 in interface dmz
 
nat (inside) 1 0 0
 
global (dmz) 1 20.0.0.10-20.0.0.20 netmask 255.0.0.0
 上面两条命令为允许高安全级别到低安全级别的访问
 static (dmz，inside) 10.0.0.10 20.0.0.2
 
access-list dmz extended permit ip any any
access-group dmz in interface inside
 上面三条命令允许低安全级别到高安全级别的访问