Just as a river flows from its source through various bends before reaching the sea, a typical HTTP request travels from a client across multiple network hops until it reaches its destination server.
During this journey, the request’s original IP address is lost as it moves through multiple network infrastructures such as proxy servers and load balancers. This happens because some of these hops terminate the TCP connection and create a new TCP connection with the next hop. As a result, the receiving server only sees the IP address of its directly connected hop in the chain rather than the client’s original IP address.
