In my old computer with a centos, and then in nets to register a domain name with nat123 full port mapping, to find out network use SSH to control this old computer in the home,
The following is the configuration of the port mapping


Then outside network access terminal using the visitor pattern is as follows:


I am using is Dr Peng Beijing broadband below


Then is enabled on the local Linux end nat123 service


Finally, in nets set the DNS


But it can't access, submitted to the figure 1, 2, fault, feeling didn't match wrong ah,,,,,,, why??? Crazy,,,,,,,,,,,,,,,,,,,,,,