How to get client IP and Port when client send request to my web service via reverse_proxy?

Help
1

1. Output of caddy version:

v2.6.1 h1:EDqo59TyYWhXQnfde93Mmv4FJfYe00dO60zMiEt+pzo=

2. How I run Caddy:

I run caddy in Oracle VPS Ubuntu with workflow:

a. System environment:

Ubuntu 22.04.1 LTS

b. Command:

sudo systemctl daemon-reload
sudo systemctl restart caddy

d. My complete Caddy config:

My Caddyfile:

example.com {
        reverse_proxy http://127.0.0.1:8080 {
                header_up Remote-Addr {remote_ip}    # I tried changing these 2 lines 
                header_up Remote-Port {remote_port}  # but the result is still not as expected
        }
}

3. The problem I’m having:

I run a Django web service (using ASGI) on port 8080 using a reverse_proxy Caddy so it can be accessed from the internet by users.
And I want to know the Remote IP and Remote Port of the incoming user, I was able to get the Client IP from HTTP_X_FORWARDED_FOR but Port is not.

4. Error messages and/or full log output:

Resut of netstat -an -p tcp command

tcp        0      0 127.0.0.1:55052         127.0.0.1:8080          ESTABLISHED 336828/caddy        
tcp        0      0 127.0.0.1:8080          127.0.0.1:55052         ESTABLISHED 341505/python       
tcp6       0      0 :::80                   :::*                    LISTEN      336828/caddy        
tcp6       0      0 :::443                  :::*                    LISTEN      336828/caddy        
tcp6       0      0 10.0.0.10:443           113.153.143.14:1373     ESTABLISHED 336828/caddy

The results I get from Django command:

HTTP GET / 302 [0.01, 127.0.0.1:55052]

However, I want something like 113.153.143.14:1373 corresponding to Remote IP : Remote Port

5. What I already tried:

I tried searching the related Django ASGI and Caddy docs to determine if the problem was with Django or Caddy. However, I think it was caused by my program receiving IP:Port which changed after Caddy reverse_proxy from Outsite Address to Internal Address on local network.
Is that correct? and how should I configure Caddy or Django so that I can get the Client Port and display it in Django.

6. Links to relevant resources:

Same problem as this but Real IP not working with Caddy >=2.5, is there any other fix or do I have to reinstall Caddy < 2.5 to use this plugin?

2

Caddy passes through the original client IP via the X-Forwarded-For header. See the docs:

Why do you need the port? The connecting port will always be random, determined by your machine’s networking stack. It’s almost always irrelevant.