diff --git a/changelog/18811.txt b/changelog/18811.txt
new file mode 100644
index 000000000..34a155dda
--- /dev/null
+++ b/changelog/18811.txt
@@ -0,0 +1,3 @@
+```release-note:improvement
+auth: Provide an IP address of the requests from Vault to a Duo challenge after successful authentication.
+```
diff --git a/vault/login_mfa.go b/vault/login_mfa.go
index c98389225..2a7ac6c19 100644
--- a/vault/login_mfa.go
+++ b/vault/login_mfa.go
@@ -1951,6 +1951,7 @@ func (c *Core) validateDuo(ctx context.Context, mfaFactors *MFAFactor, mConfig *
 		}
 	}
 
+	options = append(options, authapi.AuthIpAddr(reqConnectionRemoteAddr))
 	options = append(options, authapi.AuthUsername(username))
 	options = append(options, authapi.AuthAsync())