Contents：
What is public IP address?
Please see the Public IP Address section in Public Network Service.
What is private IP address?
Please see the Private IP Address section in Private Network Service.
How do I obtain the public IP address of an instance?
Please see the section about obtaining public IP address of an instance in Public Network Service.
How do I obtain the private IP address of an instance?
Please see the section about obtaining private IP address of an instance in Private Network Service.
How do I change the public IP of an instance?
Please see Changing Public IP of an Instance.
What is the difference between public gateways and CVMs with public IPs?
Public gateways support public network traffic routing and forwarding in images, while CVMs with public IPs do not support traffic forwarding by default. A CVM using a Windows public image cannot be used as a public gateway, because traffic forwarding is not enabled in the Windows image.
