diff --git a/103280/TS_103_280.asn1 b/103280/TS_103_280.asn1
index 68cfe54e9a3e75ef0565bd50cd1c0d4bdbc8793f..e4227521187c2cb2eb826f06769eac59d04418da 100644
--- a/103280/TS_103_280.asn1
+++ b/103280/TS_103_280.asn1
@@ -91,4 +91,6 @@ GPSINAI ::= NAI
 
 NAI ::= UTF8String
 
+IPProtocol ::= INTEGER (0..255)
+
 END
diff --git a/103280/TS_103_280.xsd b/103280/TS_103_280.xsd
index 3ff4ae13e53186ed51828193f383337448c8e3a1..93a1a09921f562f78e62dc0116dc1c67f87ba762 100644
--- a/103280/TS_103_280.xsd
+++ b/103280/TS_103_280.xsd
@@ -266,4 +266,10 @@
             <xs:pattern value="[0-9]{19,20}"/>
         </xs:restriction>
     </xs:simpleType>
+    <xs:simpleType name="IPProtocol">
+        <xs:restriction base="xs:integer">
+            <xs:minInclusive value="0"/>
+            <xs:maxInclusive value="255"/>
+        </xs:restriction>
+    </xs:simpleType>
 </xs:schema>