Splunk Search

Splunk for F5 Networks

bowzom
New Member

Hi all,

I've installed Splunk for F5 Networks application to make some tests on it.
I'm using 11.5 TMOS version and there's something wrong on the regex it uses.

I made some changes on it to match informations needed but it still doesn't work, could you confirm me that it's into /opt/splunk/etc/apps/SplunkforF5Networks/default/transforms.conf every transformations are done ?

Here is the newest regex which include old and new format of syslog events :
/]:\s(........:.):\sPool\s(\S+)\smember\s(\S+)\smonitor\sstatus\s(\S+).\s?[?\s?(?:\S+)?:?\s?(?:\S+)?\s?]?\s+?[\swas\s(\S+)\sfor\s(\S+)/

Thanks in advance for your response 😉

Tags (1)
0 Karma

bowzom
New Member

Thanks for your response.

My problem is not on f5-syslog event but on f5-syslog-eventcode, which is just below the one you saw.

[f5-syslog-eventcode]

REGEX = /]:\s(........:.):\sPool\s(\S+)\smember\s(\S+)\smonitor\sstatus\s(\S+).\s[\s(?:\S+):\s(?:\S+)\s]\s+[\swas\s(\S+)\sfor\s(\S+)/
FORMAT = event_code::$1 ltm_pool::$2 ltm_member::$3 ltm_monitor_status::$4 ltm_prevstatus::$5 ltm_prevstatus_time::$6

0 Karma

dmaislin_splunk
Splunk Employee
Splunk Employee

Can you elaborate on the sourcetypes you see within the search part of the F5 app? Looking at the transforms I see that it is doing sourcetype rewriting. Is this app installed on the indexing tier as well, otherwise it is probably not rewriting the sourcetype at index time.

[f5-syslog]
DEST_KEY = MetaData:Sourcetype
REGEX = (01070727:5|01070638:5)
FORMAT = sourcetype::F5:LTM:Syslog

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!

Casting Call: Compete in Cyber Games

Lights, Camera, SecOps: Apply to Compete in Cyber Games     Think you have what it takes to beat the clock? ...

Data Management Digest – June 2026

Welcome to the June 2026 edition of Data Management Digest! This month’s update is short and sweet, with a ...

Think Like an Architect: Introducing the Splunk Certified Cybersecurity Defense ...

In cybersecurity, defenders respond to threats. Architects design the systems that stop them.    As ...