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
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!

Persistent Queue at TcpOut — One of Splunk's Most Practical Features

Splunk introduced persistent queueing at the tcpout layer as one of the most practical resilience features in ...

Skip the Awkward Silence: Have a .conf-ersation at .conf26

Picture this. You arrive at .conf26 already having your socializing and networking plans mapped out. No ...

Rethinking Zero Trust: From Product Purchases to Logical Control Evidence

Implementing Zero Trust (ZT) across complex environments often falters at the very beginning due to a ...