Security

search time regular expression.

jsuryaprakash
Path Finder

Hi All , below is my sample data. We are receiving data using key=value pairs like below.

time=time1 | dest_ip=abmncd.com-123.45.64.78|src_ip=nahahha.com-142.36.28.69|action=success........

I just want to extract just ip address's from dest_ip and src_ip fields at search time in props.conf . when i write rex in search its working, below is my search command which is working..

index =test | rex field=dest_ip "(?(\d{1,3}.){3}\d{1,3})" |rex field src_ip "(?(\d{1,3}.){3}\d{1,3})"

But when i create inline extract in props.conf its not working.

[sourcetype]
EXTRACT-dest_ip = dest_ip="(?(\d{1,3}.){3}\d{1,3})"
EXTRACT-src_ip = src_ip ="(?(\d{1,3}.){3}\d{1,3})"

We need to use the same field names to work with CIM datamodels. we are ok with search time extraction or index time extractions also.Please help

Thanks

Tags (1)
0 Karma

gaurav_maniar
Builder

Hi Jsuryaprakash,

Your EXTRACT stanza syntax is incorrect, change it to

EXTRACT-dest_ip = dest_ip\=[^\-]+\-(?P<dest_ip>\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})
EXTRACT-src_ip = src_ip\=[^\-]+\-(?P<src_ip>\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})

Please upvote and accept the answer if it helps.

0 Karma

jsuryaprakash
Path Finder

No, its not working. Still field are coming with dns name ip combinations.

0 Karma

gaurav_maniar
Builder

Splunk restart is restart is required if any configuration changes are done, have restarted splunk after these configuration changes?

Even after restart it doesn't work, let me know.

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!

How Splunk AI Assistant Is Transforming Investigations: Insights from .conf26

At .conf26 in Denver, I spent much of my time in conversation with Splunk customers about Splunk AI Assistant. ...

Make Your Machine Data AI-Ready in Splunk

Every team is getting ready for AI agents.   Thursday, November 12, 2026  |  11AM  PST / 2PM EST   ...

Splunk Asynchronous Forwarding Explained

Splunk asynchronous forwarding is often misunderstood as simply setting autoLBVolume. That is not quite right. ...