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AWS global-accelerator medium security documentation change

Service: global-accelerator · 2025-09-28 · Security-related medium

File: global-accelerator/latest/dg/about-endpoints-caveats.md

Summary

Updated Network Load Balancer client IP preservation rules and dual-stack restrictions

Security assessment

Clarifies client IP preservation support for TCP/UDP (not TLS), which impacts security logging and access control configurations. This is a security-relevant configuration detail but does not address a specific vulnerability.

Diff

diff --git a/global-accelerator/latest/dg/about-endpoints-caveats.md b/global-accelerator/latest/dg/about-endpoints-caveats.md
index 5b6f034b0..c60a55aab 100644
--- a//global-accelerator/latest/dg/about-endpoints-caveats.md
+++ b//global-accelerator/latest/dg/about-endpoints-caveats.md
@@ -44 +44 @@ Be aware of the following requirements and limitations for different types of re
-  * Client IP address preservation is not supported for Network Load Balancers that use TLS termination.
+  * Client IP address preservation is supported for Network Load Balancers with TCP and UDP listeners, but not with TLS termination.
@@ -46,3 +46 @@ Be aware of the following requirements and limitations for different types of re
-  * Dual-stack Network Load Balancers can be added as endpoints, but there are a few restrictions: 
-
-    * For dual-stack accelerators, when you add a dual-stack Network Load Balancer, the Network Load Balancer cannot have a target group with a target type of `ip`, or a target type of `instance` and IP address type of `ipv6`.
+  * Dual-stack Network Load Balancers can be added as endpoints for IPv4 or dual-stack accelerators, but there are a few restrictions: