diff --git a/library/DIAMETER_Templates.ttcn b/library/DIAMETER_Templates.ttcn
index 256a4d4..a30a565 100644
--- a/library/DIAMETER_Templates.ttcn
+++ b/library/DIAMETER_Templates.ttcn
@@ -580,6 +580,15 @@
 		}
 	}
 }
+template (present) GenericAVP
+tr_AVP_3GPP_AuthInfo(template (present) AVP_list content := ?) := {
+	avp := {
+		avp_header := tr_DIA_Hdr_3GPP(c_AVP_Code_AAA_3GPP_Authentication_Info),
+		avp_data := {
+			avp_AAA_3GPP_Authentication_Info := content
+		}
+	}
+}
 
 /* TS 29.262 7.3.9 Visited-PLMN-Id */
 template (value) GenericAVP ts_AVP_3GPP_VisitedPlmnId(template (value) octetstring id) := {
@@ -932,6 +941,26 @@
 			ts_AVP_OriginRealm(orig_realm),
 			ts_AVP_3GPP_AuthInfo(auth_info_contents)
 	});
+template (present) PDU_DIAMETER
+tr_DIA_AIA(template (present) AVP_list auth_info_contents := ?,
+	   template (present) octetstring sess_id := ?,
+	   template (present) charstring orig_host := ?,
+	   template (present) charstring orig_realm := ?,
+	   template (present) UINT32 hbh_id := ?,
+	   template (present) UINT32 ete_id := ?) :=
+	tr_DIAMETER(flags := '0???????'B,
+		    cmd_code := Authentication_Information,
+		    app_id := int2oct(c_DIAMETER_3GPP_S6_AID, 4),
+		    hbh_id := hbh_id,
+		    ete_id := ete_id,
+		    avps := superset(
+			tr_AVP_SessionId(sess_id),
+			tr_AVP_ResultCode(DIAMETER_SUCCESS),
+			tr_AVP_AuthSessionState(NO_STATE_MAINTAINED),
+			tr_AVP_3GPP_AuthInfo(auth_info_contents),
+			tr_AVP_OriginHost(orig_host),
+			tr_AVP_OriginRealm(orig_realm)
+	));
 
 
 /* TS 29.262 7.2.3 Update Location Request */