Source 

This element can be used to specify the source of the data packet.

Element Information

Model

ALL(IPAddress Port MACAddress{0,1})
Children: IPAddress, MACAddress, Port

Source 

<xs:element name="Source" minOccurs="0">
  <xs:annotation>
    <xs:documentation xml:lang="en">This element can be used to specify the source of the data packet.</xs:documentation>
  </xs:annotation>
  <xs:complexType>
    <xs:all>
      <xs:element ref="IPAddress"/>
      <xs:element ref="Port"/>
      <xs:element ref="MACAddress" minOccurs="0"/>
    </xs:all>
  </xs:complexType>
</xs:element>

Sample