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AWS elasticloadbalancing documentation change

Service: elasticloadbalancing · 2025-11-16 · Documentation low

File: elasticloadbalancing/latest/network/edit-target-group-attributes.md

Summary

Updated client IP preservation rules for QUIC/TCP_QUIC, added QUIC-specific constraints (fixed 300s deregistration delay, no proxy protocol v2 support, no sticky sessions)

Security assessment

Documents security-adjacent operational constraints (fixed connection draining time, proxy protocol limitations) that affect security monitoring and session management capabilities for QUIC traffic

Diff

diff --git a/elasticloadbalancing/latest/network/edit-target-group-attributes.md b/elasticloadbalancing/latest/network/edit-target-group-attributes.md
index 9638d5594..ba0d560ff 100644
--- a//elasticloadbalancing/latest/network/edit-target-group-attributes.md
+++ b//elasticloadbalancing/latest/network/edit-target-group-attributes.md
@@ -34 +34 @@ Network Load Balancers can preserve the source IP addresses of clients when rout
-By default, client IP preservation is enabled (and can't be disabled) for instance and IP type target groups with UDP and TCP_UDP protocols. However, you can enable or disable client IP preservation for TCP and TLS target groups using the `preserve_client_ip.enabled` target group attribute.
+By default, client IP preservation is enabled (and can't be disabled) for instance and IP type target groups with UDP, TCP_UDP, QUIC, and TCP_QUIC protocols. However, you can enable or disable client IP preservation for TCP and TLS target groups using the `preserve_client_ip.enabled` target group attribute.
@@ -40 +40 @@ By default, client IP preservation is enabled (and can't be disabled) for instan
-  * IP type target groups (UDP, TCP_UDP): Enabled
+  * IP type target groups (UDP, TCP_UDP, QUIC, TCP_QUIC): Enabled
@@ -151 +151 @@ When a target is deregistered, the load balancer stops creating new connections
-The initial state of a deregistering target is `draining`, during which the target will stop receiving new connections. However, the target may still receive connections due to configuration propagation delay. By default, the load balancer changes the state of a deregistering target to `unused` after 300 seconds. To change the amount of time that the load balancer waits before changing the state of a deregistering target to `unused`, update the deregistration delay value. We recommend that you specify a value of at least 120 seconds to ensure that requests are completed.
+The initial state of a deregistering target is `draining`, during which the target will stop receiving new connections. However, the target may still receive connections due to configuration propagation delay. By default, the load balancer changes the state of a deregistering target to `unused` after 300 seconds. To change the amount of time that the load balancer waits before changing the state of a deregistering target to `unused`, update the deregistration delay value. We recommend that you specify a value of at least 120 seconds to ensure that requests are completed. For QUIC traffic the value is always 300 seconds, and can't be adjusted.
@@ -219,0 +220,2 @@ TLS listeners do not support incoming connections with proxy protocol headers se
+QUIC traffic does not support proxy protocol version 2.
+
@@ -319 +321 @@ Sticky sessions are a mechanism to route client traffic to the same target in a
-  * Sticky sessions are not supported for TLS listeners.
+  * Sticky sessions are not supported for TLS or QUIC listeners.