Updated on 2026-03-19 GMT+08:00
Proxy Protocol
Using Proxy Protocol to Transfer Client IP Addresses
You can enable Proxy Protocol on listeners and ensure that the backend servers can translate Proxy Protocol to transfer client IP addresses.
- TCP listeners: You can obtain the client IP address using Proxy Protocol because Transfer Client IP Address does not work in the following scenarios:
- TCP listeners communicate with IP as backend servers.
- IPv4/IPv6 translation is enabled for TCP listeners. In this case, client IP addresses are translated.
- TLS listeners: You can use Proxy Protocol to transfer client IP addresses.
Ensure that the backend servers can translate Proxy Protocol. If they do not, services may be interrupted.
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