Dim xConf As XElement
xConf = XElement.Load(ConfigFileName)
 
Dim abfrage = From config In xConf.Elements("cfg") Where config.<name>.Value _
  = Section Select config.<pcip>

<einstellungen>
  <cfg>
    <name>set1</name>
    <pcip>192.168.100.10</pcip>
    <mask>255.255.255.0</mask>
  </cfg>
  <cfg>
    <name>set2</name>
    <pcip>192.168.100.50</pcip>
    <mask>255.255.0.0</mask>
  </cfg>
</einstellungen>