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路由器NAT回流简析

2015-06-17


路由器NAT回流简析
 
主任让我配置一下路由器，好使我们的校内也能通过域名访问，本校的主页。原来我们的主页在校外可以通过域名访问，而在校内却只能通过IP地址。因为，我在配置NAT的时候，没有发现内网不能访问，所以这个问题一直到今天才迫切需要解决，呵呵，现在得以解决了。
输入以下两条新命令【便可以搞定----前提是已经配置好了NAT，以及外网能够通过域名访问内网服务器】：  www.zhishiwu.com  
shenzhi_R01_config#ip nat service privateservice
shenzhi_R01_config#ip nat outside destination static tcp 1.2.3.4 80 192.168.0.200 8080
--------------------------------------------------------------------------------------
新的路由器2626配置如下：
!version 1.3.3G
service timestamps log date
service timestamps debug date
no service password-encryption
!
hostname shenzhi_R01
!
!
!
!
!
!
gbsc group default
!
!
!
!
!
!
!
aaa authentication login default local
aaa authentication enable default enable
!
username shenzhi password 0 
enable password 0 level 15
!
!
!
interface FastEthernet0/0
ip address 121.17.40.109 255.255.255.0
no ip directed-broadcast
ip nat outside
!
interface FastEthernet0/3
no ip address
no ip directed-broadcast
ip nat inside
!
interface FastEthernet0/3.1
ip address 192.168.1.99 255.255.255.0
no ip directed-broadcast
encapsulation dot1Q 11
bandwidth 100000
delay 1
ip nat inside
!
interface FastEthernet0/3.2
ip address 192.168.2.99 255.255.255.0
no ip directed-broadcast
encapsulation dot1Q 12
bandwidth 100000
delay 1
ip nat inside
!
interface FastEthernet0/3.3
ip address 192.168.3.99 255.255.255.0
no ip directed-broadcast
encapsulation dot1Q 13
bandwidth 100000
delay 1
ip nat inside
!
interface FastEthernet0/3.4
ip address 192.168.4.99 255.255.255.0
no ip directed-broadcast
encapsulation dot1Q 14
bandwidth 100000
delay 1
ip nat inside
!
interface FastEthernet0/3.5
ip address 192.168.5.99 255.255.255.0
no ip directed-broadcast
encapsulation dot1Q 15
bandwidth 100000
delay 1
ip nat inside
!
interface FastEthernet0/3.6
ip address 192.168.6.99 255.255.255.0
no ip directed-broadcast
encapsulation dot1Q 16
bandwidth 100000
delay 1
ip nat inside
!
interface FastEthernet0/3.7
ip address 192.168.7.99 255.255.255.0
no ip directed-broadcast
encapsulation dot1Q 17
bandwidth 100000
delay 1
ip nat inside
!
interface FastEthernet0/3.10
ip address 192.168.0.99 255.255.255.0
no ip directed-broadcast
encapsulation dot1Q 10
bandwidth 100000
delay 1
ip nat inside
!
interface Serial0/1
no ip address
no ip directed-broadcast
!
interface Serial0/2
no ip address
no ip directed-broadcast
!
interface Async0/0
no ip address
no ip directed-broadcast
!
!
!
!
!
!
!
!
!
ip route default 121.17.40.1
ip route 202.99.160.0 255.255.255.0 121.17.40.1
ip route 202.99.166.0 255.255.255.0 121.17.40.1
!
!
!
!
!
!
!
!
!
!
!
ip access-list standard shenzhi_nat_access
permit 192.168.0.0 255.255.255.0
!
ip access-list standard shenzhi_nat_access
permit 192.168.0.0 255.255.255.0
permit 192.168.1.0 255.255.255.0
permit 192.168.2.0 255.255.255.0
permit 192.168.3.0 255.255.255.0
permit 192.168.4.0 255.255.255.0
permit 192.168.5.0 255.255.255.0
permit 192.168.6.0 255.255.255.0
permit 192.168.7.0 255.255.255.0
!
!
!
!
!
!
ip nat service privateservice
ip nat outside destination static tcp 1.2.3.4 80 192.168.0.200 8080
ip nat inside source static tcp 192.168.0.200 8080 1.2.3.4 80
ip nat inside source list shenzhi_nat_access interface FastEthernet0/0
!
!
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