Last updated：2021-05-26 16:59:37
Elastic IP (EIP) is a public network IP address that can be independently applied for. An EIP can only be bound to a KEC instance, an SLB instance, or an EPC instance in the same region. EIPs support dynamic binding and unbinding.
If your VPC-type KEC instance needs to access the public network, you need to buy an EIP or public network NAT.
EIPs can be bound to KEC instances, SLB instances, or EPC instances.
No. A single KEC instance can be bound to only one EIP.
No. EIPs cannot be used across regions. An EIP can be bound to any KEC instance, SLB instance, or EPC instance in the same region under your account.
There is no limit.
To improve the utilization of public IP addresses, Kingsoft Cloud charges a fee for EIP usage. After you buy an EIP, the fee is charged based on the specified billing mode even if the EIP is not bound for use.
You must pass real-name authentication before you apply for an EIP.
There will be SMS and email alerts when an EIP expires. The EIP will be disabled for 7 days before it is released.
In principle, Kingsoft Cloud allocates to users an inbound public bandwidth that equals to the purchased outbound bandwidth. However, the actual inbound bandwidth is generally lower than the outbound bandwidth. Therefore, in an availability zone, if the overall inbound bandwidth is lower than the outbound bandwidth, Kingsoft Cloud will lift the limit on users’ inbound bandwidth to allow a certain amount of overflow to enhance user experiences. If the bandwidth purchased is less than 50 Mbit/s, the allowed inbound bandwidth can be up to 50 Mbit/s. If the bandwidth purchased is greater than or equal to 50 Mbit/s, the allowed inbound bandwidth equals to the purchased outbound bandwidth.
In the availability zone, when the overall inbound bandwidth is greater than the outbound bandwidth, Kingsoft Cloud will limit the users’ inbound bandwidth, with limitations imposed first on the users with extreme gaps between their inbound and outbound bandwidth.
You can check whether the resource bound with the EIP has a security policy. For example, if a security group policy is configured to prohibit access to port 8080, the port 8080 of the EIP cannot be accessed.
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