AWS waf documentation change

Service: waf · 2025-10-28 · Documentation low

File: waf/latest/developerguide/logging-fields.md

Summary

Added clarification that clientAsn field is logged only when ASN match statements are used.

Security assessment

Clarifies logging behavior but does not introduce or modify security features or address vulnerabilities.

Diff

diff --git a/waf/latest/developerguide/logging-fields.md b/waf/latest/developerguide/logging-fields.md
index d13db4140..858d7021e 100644
--- a//waf/latest/developerguide/logging-fields.md
+++ b//waf/latest/developerguide/logging-fields.md
@@ -46,0 +47,4 @@ The Autonomous System Number (ASN) associated with the IP address of the web req
+###### Note
+
+**clientAsn** is logged in AWS WAF logs only when an ASN match statement is used. This field is not logged otherwise.
+