Receive data with query from Webservice

In the WebService I load the general data consulted to a monitoring platform, but then I wanted to receive the data of 
a specific team giving it a label.
 For example, this is a piece of code that brings me the general query.
 <xs:complexType name="ipAddress">
<xs:sequence>
<xs:element minOccurs="0" name="created" type="xs:dateTime"/>
<xs:element minOccurs="0" name="hostedOnId" type="xs:string"/>
<xs:element minOccurs="0" name="id" type="xs:string"/>
<xs:element minOccurs="0" name="inInterfaceId" type="xs:string"/>
<xs:element minOccurs="0" name="ipSubnetId" type="xs:string"/>
<xs:element minOccurs="0" name="ipValue" type="xs:string"/>
<xs:element minOccurs="0" name="managementMode" type="ns1:managementMode"/>
<xs:element minOccurs="0" name="modified" type="xs:dateTime"/>
<xs:element minOccurs="0" name="notes" type="xs:string"/>
<xs:element name="prefixLength" type="xs:int"/>
<xs:element minOccurs="0" name="uuid" type="xs:string"/>
</xs:sequence>
</xs:complexType>

Then I would like to give it a value, for example an ip, and to return the data related to that device.
 I do not know if i would open for example the field "IpValue" = "value of the IP" , but i do not know how to do it.
 
 A greeting and thanks in advance.