Splunk Enterprise Security

Discarding Specific type of traffic either on forwarder or indexer fails

abwe
Loves-to-Learn Lots

Discarding Specific type of traffic either on forwarder or indexer fails, I tried to discard it using blacklist on forwarder and nullqueue transform on indexer and both failed.

here is a log sample

Oct 3 11:34:03 1.1.1.1 CEF:0|FORCEPOINT|Firewall|6.5.1|70018|Connection_Allowed|0|app=SNMP (UDP) rt=Oct 03 2019 11:28:12 deviceFacility=Packet Filtering act=Allow deviceOutboundInterface=13 deviceInboundInterface=0 proto=17 dpt=161 spt=62032 dst=2.2.2.2 src=3.3.3.3 dvchost=4.4.4.4 dvc=4.4.4.4 deviceExternalId=company-name node 1 cs1Label=RuleID cs1=2097272.10

and the configuration

props.conf
[forcepoint]
Transform-Forcepoint=discardsnmp

transforms.conf
[discardsnmp]
REGEX = app=SNMP
DEST_KEY = queue
FORMAT = nullQueue

any one can find out what is the problem?

0 Karma
1 Solution

ivanreis
Builder

please try this one: https://regex101.com/r/wgNicw/1

transforms.conf
[discardsnmp]
REGEX = \b(\w[a-zA-Z].*\Dapp=SNMP.+)
DEST_KEY = queue
FORMAT = nullQueue

View solution in original post

0 Karma

ivanreis
Builder

please try this one: https://regex101.com/r/wgNicw/1

transforms.conf
[discardsnmp]
REGEX = \b(\w[a-zA-Z].*\Dapp=SNMP.+)
DEST_KEY = queue
FORMAT = nullQueue

0 Karma

abwe
Loves-to-Learn Lots

Thanks, it worked like charm

0 Karma
Get Updates on the Splunk Community!

Index This | Why did the turkey cross the road?

November 2025 Edition  Hayyy Splunk Education Enthusiasts and the Eternally Curious!   We’re back with this ...

Enter the Agentic Era with Splunk AI Assistant for SPL 1.4

  🚀 Your data just got a serious AI upgrade — are you ready? Say hello to the Agentic Era with the ...

Feel the Splunk Love: Real Stories from Real Customers

Hello Splunk Community,    What’s the best part of hearing how our customers use Splunk? Easy: the positive ...