2、配置要求
1）防火墙的E0/2接口为TRUST区域，ip地址是：192.168.254.1/29；
2）防火墙的E1/2接口为UNTRUST区域，ip地址是：202.111.0.1/27；
3）内网服务器对外网做一对一的地址映射，192.168.254.2、192.168.254.3分别映射为202.111.0.2、202.111.0.3；
4）内网服务器访问外网不做限制，外网访问内网只放通公网地址211.101.5.49访问192.168.254.2的1433端口和192.168.254.3的80端口。
3、防火墙的配置脚本如下
<H3CF100A>dis cur
#
sysname H3CF100A
#
super password level 3 cipher 6aQ>Q57-$.I)0;4:\(I41!!!
#
firewall packet-filter enable
firewall packet-filter default permit
#
insulate
#
nat static inside ip 192.168.254.2 global ip 202.111.0.2
nat static inside ip 192.168.254.3 global ip 202.111.0.3
#
firewall statistic system enable
#
radius scheme system
server-type extended
#
domain system
#
local-user net1980
password cipher ######
service-type telnet
level 2
#
aspf-policy 1
detect h323
detect sqlnet
detect rtsp
detect http
detect smtp
detect ftp
detect tcp
detect udp
#
object address 192.168.254.2/32 192.168.254.2 255.255.255.255
object address 192.168.254.3/32 192.168.254.3 255.255.255.255
#
acl number 3001
description out-inside
rule 1 permit tcp source 211.101.5.49 0 destination 192.168.254.2 0 destination-port eq 1433
rule 2 permit tcp source 211.101.5.49 0 destination 192.168.254.3 0 destination-port eq www
rule 1000 deny ip
acl number 3002
description inside-to-outside
rule 1 permit ip source 192.168.254.2 0
rule 2 permit ip source 192.168.254.3 0
rule 1000 deny ip
#
interface Aux0
async mode flow
#
interface Ethernet0/0
shutdown
#
interface Ethernet0/1
shutdown
#
interface Ethernet0/2
speed 100
duplex full
description to server
ip address 192.168.254.1 255.255.255.248
firewall packet-filter 3002 inbound
firewall aspf 1 outbound
#
interface Ethernet0/3
shutdown
#
interface Ethernet1/0
shutdown
#
interface Ethernet1/1
shutdown
#
interface Ethernet1/2
speed 100
duplex full
description to internet
ip address 202.111.0.1 255.255.255.224
firewall packet-filter 3001 inbound
firewall aspf 1 outbound
nat outbound static
#
interface NULL0
#
firewall zone local
set priority 100
#
firewall zone trust
add interface Ethernet0/2
set priority 85
#
firewall zone untrust
add interface Ethernet1/2
set priority 5
#
firewall zone DMZ
add interface Ethernet0/3
set priority 50
#
firewall interzone local trust
#
firewall interzone local untrust
#
firewall interzone local DMZ
#
firewall interzone trust untrust
#
firewall interzone trust DMZ
#
firewall interzone DMZ untrust
#
ip route-static 0.0.0.0 0.0.0.0 202.111.0.30 preference 60
#
user-interface con 0
user-interface aux 0
user-interface vty 0 4
authentication-mode scheme
#
