Help Center/ Elastic IP/ Service Overview/ Functions
Updated on 2025-11-06 GMT+08:00
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Functions

EIP provides various functions for you to flexibly configure services and build diversified networks.

This section describes main functions of EIP. You can check if a certain function is available in a region on the management console.

EIP

The EIP service enables your cloud resources to communicate with the Internet using static public IP addresses and scalable bandwidths.

You can assign EIPs, bind them to or unbind them from cloud resources, release EIPs, modify EIP bandwidth, and upgrade static BGP EIPs to dynamic BGP EIPs.

Figure 1 Connecting to the Internet using an EIP

For details, see Assigning an EIP.

IPv6 EIP

Both IPv4 and IPv6 EIPs are available. You can assign an IPv6 EIP or map an existing IPv4 EIP to an IPv6 EIP.

After the IPv6 EIP function is enabled, you will obtain both an IPv4 EIP and its corresponding IPv6 EIP. External IPv6 addresses can access cloud resources through this IPv6 EIP.

For details, see IPv6 EIP Overview.

Shared Bandwidth

A shared bandwidth allows multiple EIPs to share the same bandwidth. The EIPs of all ECSs, BMSs, and load balancers can share the same bandwidth if they are in the same region.

You can assign, modify, delete a shared bandwidth, add EIPs to a shared bandwidth, and remove EIPs from a shared bandwidth.

For details, see Shared Bandwidth Overview.