You are deploying a global external TCP load balancing solution and want to preserve the source IP address of the original layer 3 payload. Which type of load balancer should you use?

The correct answer is D. TCP/SSL proxy load balancer. Set PROXY protocol for retaining client connection information External TCP Proxy Load Balancing terminates TCP connections from the client and creates new connections to the instances. By default, the original client IP and port information is not To preserve and send the…

Submitted by minji_kr· Apr 18, 2026Designing, planning, and prototyping a Google Cloud network

Question

You are deploying a global external TCP load balancing solution and want to preserve the source IP address of the original layer 3 payload. Which type of load balancer should you use?

Options

AHTTP(S) load balancer
BNetwork load balancer
CInternal load balancer
DTCP/SSL proxy load balancer

How the community answered

(23 responses)

A
4% (1)
B
4% (1)
C
9% (2)
D
83% (19)

Explanation

Set PROXY protocol for retaining client connection information External TCP Proxy Load Balancing terminates TCP connections from the client and creates new connections to the instances. By default, the original client IP and port information is not To preserve and send the original connection information to your instances, enable PROXY protocol (version 1). This protocol sends an additional header that contains the source IP address, destination IP address, and port numbers to the instance as a part of the request. https://cloud.google.com/load-balancing/docs/tcp/setting-up-tcp#proxy-protocol

Topics

#Global Load Balancing#TCP/SSL Proxy Load Balancer#Source IP Preservation#PROXY Protocol

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