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FAQ-How to Perform NAT for Mid-low End Router to Access Public Network and Private Network at the same time

Publication Date:  2012-07-27 Views:  17 Downloads:  0
Issue Description
Topology: 10.0.3.0  municipal private network 10.0.1.1----------(10.0.1.2)Router(10.1.2.1)--------10.1.2.0 private network in county
                                                                                        |
                               Public network interface 222.111.111.1
Demands: A user in county office could access municipal private network through a router, and the public network after NAT. 
Alarm Information
No
Handling Process
Such a demand could be met by the following methods: 
1. Configuring a specific route to municipal private network at router, and a default route to public network. 
   ip rout 10.0.3.0 255.255.255.0 10.0.1.1
   ip rout 0.0.0.0 0.0.0.0 222.111.111.1
2. Configuring NAT
   acl num 2000
   rule permit sourc 10.1.2.0 0.0.0.255
   rule deny sourc any
   int e0------------------------------------it is the interface interconnecting to the public network. 
   nat outbound 2000 interface
Root Cause
No
Suggestions
No

END