Splunk Search

how to write the regular expression for my statement?

lksridhar
Explorer

Hi folks,

could you please anyone help me to write the regex for below statement and need extract the external value from below logs.

EXTERNAL:10.23.9.121/587327

Tags (1)
0 Karma
1 Solution

adayton20
Contributor

Give this a try:

|rex field=_raw "EXTERNAL\:(?P<EXTERNAL>.[^\s]*)"

View solution in original post

0 Karma

Richfez
SplunkTrust
SplunkTrust

Try

... my search here | rex field=_raw "EXTERNAL:(?<EXTERNAL>\d+\.\d+\.\d+\.\d+\/\d+)"

You can see it works in this example at regex101.com.

adayton20
Contributor

Give this a try:

|rex field=_raw "EXTERNAL\:(?P<EXTERNAL>.[^\s]*)"
0 Karma

lksridhar
Explorer

thank for the information adayton and i tried with above search and not receiving any value under the External.

0 Karma

zanb
Path Finder

AFAIK shouldn't have to use a backward slash on colons.

0 Karma

lksridhar
Explorer

adayton and zanb , the below command is working fine.

rex field=_raw "EXTERNAL:(?P.[^\s]*)"

0 Karma

adayton20
Contributor

Can you provide a sample of the raw log, please?

0 Karma
Got questions? Get answers!

Join the Splunk Community Slack to learn, troubleshoot, and make connections with fellow Splunk practitioners in real time!

Meet up IRL or virtually!

Join Splunk User Groups to connect and learn in-person by region or remotely by topic or industry.

Get Updates on the Splunk Community!

[Puzzles] Solve, Learn, Repeat: Tiling

This puzzle (first published here) is based on finding groups of tessellated tiles (inspired by floor tiles I ...

SOK it to Me: Top 3 Benefits of Using Splunk Operator on Kubernetes that’ll Make ...

    Thursday, July 9, 2026  |  11:00AM–12:00PM PDT Duration: 1 hour (includes Q&A) Managing can feel like a ...

Upgrade Prep for 10.4, Network Observability Deep Dives, and More from Splunk Lantern

Splunk Lantern is Splunk’s customer success center that provides practical guidance from Splunk experts on key ...