Splunk Search

Multivalue Regex capture

Derek
Path Finder

If I have an event with more than one IP addres in it, how can I write a regex that will capture all of the IP's?

Example: Website1 A.B.C.D POST /site/page.asmx - 80 - Z.Y.X.W UserAgentX 401 1 0

Thanks!

Tags (2)
0 Karma
1 Solution

Lowell
Super Champion

See How do I find all unique IP addresses in a file?


Basically you can find ip interactivly using a search command:

| rex max_match=100 "\b(?<ip>\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})\b" 

Or you can setup an automatic field extraction in your props.conf and transforms.conf files.

props.conf:

[my_source_type]
REPORT-ips = all_the_ips

transforms.conf:

[all_the_ips]
REGEX = \b(?<ip>\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})\b
MV_ADD = True

View solution in original post

Lowell
Super Champion

See How do I find all unique IP addresses in a file?


Basically you can find ip interactivly using a search command:

| rex max_match=100 "\b(?<ip>\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})\b" 

Or you can setup an automatic field extraction in your props.conf and transforms.conf files.

props.conf:

[my_source_type]
REPORT-ips = all_the_ips

transforms.conf:

[all_the_ips]
REGEX = \b(?<ip>\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})\b
MV_ADD = True
Get Updates on the Splunk Community!

Unlock Database Monitoring with Splunk Observability Cloud

  In today’s fast-paced digital landscape, even minor database slowdowns can disrupt user experiences and ...

Purpose in Action: How Splunk Is Helping Power an Inclusive Future for All

At Cisco, purpose isn’t a tagline—it’s a commitment. Cisco’s FY25 Purpose Report outlines how the company is ...

[Upcoming Webinar] Demo Day: Transforming IT Operations with Splunk

Join us for a live Demo Day at the Cisco Store on January 21st 10:00am - 11:00am PST In the fast-paced world ...