How to make computers have public IP

Reprint ：http://www.360doc.com/content/19/0521/09/2238056_837197371.shtml

Determine whether you have a public network IP

The most direct way is , Make one web The server , such as tomcat. Then enter in the search engine ip These two letters , Enter detection ip Website , Use the detected ip To access your own server , If you can come out, it will prove that you have a public network ip.

The telephone line of China Unicom in the past ADSL Have a public network ip, Now the family has changed to Great Wall broadband , Is a local area network (LAN) ip 了 . Enter the router , You can see it ip yes 10 At the beginning .

Make the computer have a public network IP Methods

Case one

There is a public network in the home ip Of , But computers are wifi In the LAN , It's LAN ip.

This situation can be handled in this way , Enter the router , Find settings DMZ Where the host , Put your LAN ip Suli , After opening , It's equivalent to putting the whole machine on the public network . This way is easy to be attacked by viruses .

You can also use port mapping , You need to know which ports you use , Then map in the router , For example, my website server uses 80 port , Map only 80 The port is OK .

The second case

The line is intranet , And that's where it comes in chuan tou The software .

On the domestic market chuan tou There are still a lot of software , Those that are fast and stable are charged by traffic , such as huashengke

ping guo cha , This is free of charge , But it can only map 2 Ports

wangluotong, Rechargeable , Its unlimited , I bought this . Sometimes the network is always interrupted , Domestic lines are not as fast as foreign lines , Comparison pit .

Netcom can map to a single port , You can also map all ports . Full port mapping , Users need to visit another domain name to map , Then you can access the assigned domain name .

guashengke It feels better to use it , I didn't encounter any messy problems , It's about configuring ftp Trouble when