In den meisten IP-Datenbanken sind Spalten für "Anfangs-IP-Bereich" und "End-IP-Bereich" enthalten. Die Werte in diesen Spalten werden in der Regel als achtstellige Ganzzahl dargestellt. Ihre Daten weisen sicherlich IP-Adressen auf, die als neunstelliger ganzzahliger Wert mit Punkttrennzeichen dargestellt werden. Beispiel: 1.23.456.789. Wenn Sie den Standort für die IP-Adresse ermitteln möchten, müssen Sie die IP-Adresse in eine Ganzzahl umwandeln und bestimmen, zu welchem IP-Bereich sich diese Adresse zuordnen lässt.
Als Erstes müssen Sie zwei Verknüpfungen zwischen Ihren IP-Adressdaten und der IP-Adressdatenbank erstellen.(INT(
LEFT([IP Address],(FIND([IP Address], ".")))
))*16777216+
(INT(
LEFT(
MID([IP Address],
FIND([IP Address],".")+1),
FIND(MID([IP Address],FIND([IP Address],".")+1),".")-1)
))*65536+
(INT(
MID([IP Address],
FIND([IP Address], ".", FIND([IP Address], ".") +1)+1,
(FIND([IP Address], ".", FIND([IP Address], ".", FIND([IP Address],"." ) +1) +1)) - (FIND([IP Address], ".", FIND([IP Address], ".") +1))-1
)
))*256+
(INT(
RIGHT([IP Address],
LEN([IP Address]) -
FIND([IP Address], ".", FIND([IP Address], ".", FIND([IP Address],"." ) +1) +1)
)(INT(
LEFT([IP Address],(FIND([IP Address], ".")))
))*16777216+
(INT(
LEFT(
MID([IP Address],
FIND([IP Address],".")+1),
FIND(MID([IP Address],FIND([IP Address],".")+1),".")-1)
))*65536+
(INT(
MID([IP Address],
FIND([IP Address], ".", FIND([IP Address], ".") +1)+1,
(FIND([IP Address], ".", FIND([IP Address], ".", FIND([IP Address],"." ) +1) +1)) - (FIND([IP Address], ".", FIND([IP Address], ".") +1))-1
)
))*256+
(INT(
RIGHT([IP Address],
LEN([IP Address]) -
FIND([IP Address], ".", FIND([IP Address], ".", FIND([IP Address],"." ) +1) +1)
)
))001458025
40 KB
60 KB

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