FAQs about VPC-type ECS' support of public IP addresses (PublicIP)
Created#More Posted time:Dec 6, 2016 13:47 PM
What business scenarios require the purchase of PublicIP for the VPC-type ECS?
If you need a public IP address which can be automatically allocated at the purchase of a VPC-type ECS instance, and can be removed and released upon the release of an instance, you can choose PublicIP.
If you need a public IP address that can be retained and available for a long term and bound to or unbound from the desired ECS, you can choose EIP.
How to purchase a VPC-type ECS with a PublicIP allocated?
You can go to the ECS purchase page and select non-0Mbps for the internet bandwidth, and the system will automatically allocate a PublicIP.
What payment modes are offered for purchasing the PublicIP for the VPC-type ECS?
Two payment modes are available: Pay By Traffic and Pay By Bandwidth.
• Pay By Bandwidth: you need to specify the bandwidth, such as 10Mbps (unit: bit) and the charges will be included in the bill of instance fees.
• Pay By Traffic: it charges fees based on the actual network traffic used. Payment occurs after usage, and the charges are deducted hourly. To prevent soaring charges from a sudden increase of traffic, you can designate the maximum bandwidth allowed.
What is the difference between the PublicIP and EIP for the VPC-type ECS?
• The PublicIP is allocated at the creation of the instance or automatically allocated by the system when you upgrade your 0Mbps bandwidth. After being allocated, the PublicIP cannot be unbound, but it can only be released with the instance releasing.
• The elastic public IP address (EIP) can be applied for independently and bound to an instance with no public IP addresses (PublicIP or EIP) allocated. It can be unbound from the instance and bound to another instance, or be released separately.
A VPC-type ECS instance can only be allocated with one public IP address at most, either a PublicIP or an EIP.
Can the bandwidth of the PublicIP of a VPC-type ECS be upgraded?
Subscription ECS instances can upgrade the bandwidth, and pay-as-you-go ECS instances cannot.
Can the PublicIP of a VPC-type ECS be unbound?
No, it can't. It can only be released with the instance together.
How can I allocate a public IP address for a VPC-type ECS instance with no public IP address allocated at the instance purchase?
Subscription ECS instances can achieve this through upgrading bandwidth or binding an EIP. Pay-as-you-go ECS instances can only achieve this through binding an EIP.
How can I check the monitoring data for the PublicIP of a VPC-type ECS?
You can view the network monitoring data on the ECS Console.
How can I check the bills for the pay-as-you-go PublicIP of a VPC-type ECS?
You can view the charges details on the ECS Console.
What are the similarities and differences between the PublicIP in a VPC and in a classic network?
• Similarities: The PublicIP in both environments can be used to access the internet. They share the same operations on the products. Both of them are purchased with the instance together and can upgrade their bandwidth. Neither of them can be unbound, and both of them can be released with the instance together.
• Differences: The PublicIP in VPC is a NAT IP address, and cannot be queried within the server using the command lines; the PublicIP in a classic network is a binding IP address and can be queried within the server using the command line.