Limit-RPS annotation how can be use with Custom header

[vasim-test]

I have set limit-rps annotation to restrict number of connections from particular IP at ingress. I am student and stuck in problem where I want to understand.

1. Which header does limit-rps use to identify particular IP from client.
2. If limit-rps is using X-Forwarded-For header then what should I do if my Client IP is getting captured in custom header like Client-External-IP.
3. How to make limit-rps work with this custom header Client-External-IP to know the IP.

[k8s-ci-robot]

This issue is currently awaiting triage.

If Ingress contributors determines this is a relevant issue, they will accept it by applying the triage/accepted label and provide further guidance.

The triage/accepted label can be added by org members by writing /triage accepted in a comment.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[github-actions]

This is stale, but we won't close it automatically, just bare in mind the maintainers may be busy with other tasks and will reach your issue ASAP. If you have any question or request to prioritize this, please reach #ingress-nginx-dev on Kubernetes Slack.