curl --location '/SOAP?service=EasyIPEdit' \
--header 'SOAPAction: urn:EasyIPLibrary-EasyIPEdit#ReserveNextAvailableIPAddress' \
--header 'Content-Type: text/xml; charset=utf-8' \
--data '<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<soap:Body>
<tns:EasyIPEdit___ReserveNextAvailableIPAddress xmlns="http://tempuri.org/">
<tns:SubnetID>100</tns:SubnetID>
<tns:ComparisonFieldName>string</tns:ComparisonFieldName>
<tns:ComparisonFieldValue>string</tns:ComparisonFieldValue>
<tns:UpdateFieldName>string</tns:UpdateFieldName>
<tns:UpdateFieldValue>string</tns:UpdateFieldValue>
</tns:EasyIPEdit___ReserveNextAvailableIPAddress>
</soap:Body>
</soap:Envelope>'