Splunk Search

How to exclude data from a field?

MR1992
Explorer

Is there a way to exclude specified data from a single field. The example I have is on Destination IP addresses from a firewall. 

Splunk is currently showing multiple IP addresses in the field that is the direct path from source to destination and some are related to our specific appliances that we do not need to see. e.g. I have 3 IP's as below

1.1.1.1

1.1.1.2

1.1.1.3

I know what 1.1.1.1 and 1.1.1.2 are so I need to exclude them from view on the field but I want to keep 1.1.1.3. I need my know IP's excluded as there are many others that I am not aware of. I have around 50 IP's I want excluded from the field.  

Labels (2)
0 Karma
1 Solution

ITWhisperer
SplunkTrust
SplunkTrust

From your description, I assume ip is a multivalue field (?)

| eval ip=mvfilter(ip!="1.1.1.1" AND ip!="1.1.1.2")

View solution in original post

0 Karma

MR1992
Explorer

Yeah it working great, thank you

0 Karma

ITWhisperer
SplunkTrust
SplunkTrust

From your description, I assume ip is a multivalue field (?)

| eval ip=mvfilter(ip!="1.1.1.1" AND ip!="1.1.1.2")
0 Karma

MR1992
Explorer

Yes that is correct we have it coming into splunk as list(dest) would this exclude or only show the stated IPs? I would want it to exclude 1.1.1.1 & 1.1.1.2 from the field just to leave 1.1.1.3 on the output

0 Karma

ITWhisperer
SplunkTrust
SplunkTrust

It keeps what passes the test i.e. everything that is not equal to 1.1.1.1 and not equal to 1.1.1.2

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!

Deep insights, no barriers: Splunk Observability Cloud Free Edition

As software delivery cycles continue to accelerate, observability shouldn’t be a luxury — it should be a ...

Monitoring AI Agents with Splunk Observability Cloud

Let’s say I’m running a travel planning AI app in production. A user asks for three concise hotel options in ...

[Puzzles] Solve, Learn, Repeat: Tiling

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