Splunk Search

How to write a search to output results where a field from my events match with a field in my lookup CSV file?

geantver0000
Engager

Hi,

I have found many searches using lookup files, but none works correctly for me What is the correct search to get this?:

My event :
Date, URL, IP

My lookup CSV file:
City, Street, SubnetIP

I want to match the IP on my event with the SubnetIP of my CSV file to get this result

Result :
Date, URL, IP ( it matches witch SubnetIP), CITY

Kind regards

Steve

0 Karma
1 Solution

splunkton
Path Finder

base search [|inputlookup lookup.csv|rename SubnetIP AS IP|table IP] --> it returns the results matching with the event and the lookup table

to derive city from the lookup table |lookup lookup.csv SubnetIP AS IP OUTPUT CITY

The total search query is going to be

base search [|inputlookup lookup.csv|rename SubnetIP AS IP|table IP]||lookup lookup.csv SubnetIP AS IP OUTPUT CITY | table Date URL IP City

View solution in original post

splunkton
Path Finder

base search [|inputlookup lookup.csv|rename SubnetIP AS IP|table IP] --> it returns the results matching with the event and the lookup table

to derive city from the lookup table |lookup lookup.csv SubnetIP AS IP OUTPUT CITY

The total search query is going to be

base search [|inputlookup lookup.csv|rename SubnetIP AS IP|table IP]||lookup lookup.csv SubnetIP AS IP OUTPUT CITY | table Date URL IP City

geantver0000
Engager

Indeed this search seems to works !
Really usefull thanks

Steve

0 Karma

sundareshr
Legend

Try this

... | lookup lokupfile.csv SubnetIP as IP OUTPUT City | table Date URL IP City
0 Karma
Get Updates on the Splunk Community!

Index This | What did the zero say to the eight?

June 2025 Edition Hayyy Splunk Education Enthusiasts and the Eternally Curious!  We’re back with this month’s ...

Splunk Observability Cloud's AI Assistant in Action Series: Onboarding New Hires & ...

This is the fifth post in the Splunk Observability Cloud’s AI Assistant in Action series that digs into how to ...

Now Playing: Splunk Education Summer Learning Premieres

It’s premiere season, and Splunk Education is rolling out new releases you won’t want to miss. Whether you’re ...