Splunk Search

parsing multivalue subfields in cisco ise

tfechner
Path Finder

Hi,

we have from a cisco ISE a syslog like this one:

calling-Station-ID=15.15.15.15, NAS-Port-Type=Virtual, Tunnel-Client-Endpoint=(tag=0) 95.90.193.23, cisco-av-pair=mdm-tlv=device-platform=win, cisco-av-pair=mdm-tlv=device-mac=cc-ed-ce-f9-af-47, cisco-av-pair=mdm-tlv=device-platform-version=6.3.9600 , cisco-av-pair=mdm-tlv=device-type=FUJITSU LIFEBOOK E744, cisco-av-pair=mdm-tlv=device-public-mac=ab-bd-ce-f9-af-47, cisco-av-pair=mdm-tlv=ac-user-agent=AnyConnect Windows 4.6.01103, cisco-av-pair=mdm-tlv=device-uid=C3FFF95AFDEE9CBA21839EA8D594D7F87165993CE2C8853A262179F90AC70167,

The key=value extraction works fine. But I have a multi-value field called cisco-av-pair containing these values:
..
mdm-tlv=device-platform-version=6.3.9600
mdm-tlv=device-uid=C3..
..

I would like to have the mdm-tlv prefix cut-off and have the key/value extraction on the subfields. At the end there should be these single-value fields:
device-platform-version , device-uid, device-platform
with the corresponding values.

How is that done in props/transforms?
I know I can write a regex doing this stuff, but a more generic way without explicit naming the fields would be fine.

0 Karma
1 Solution

to4kawa
Ultra Champion
| makeresults
| eval _raw="calling-Station-ID=15.15.15.15, NAS-Port-Type=Virtual, Tunnel-Client-Endpoint=(tag=0) 95.90.193.23, cisco-av-pair=mdm-tlv=device-platform=win, cisco-av-pair=mdm-tlv=device-mac=cc-ed-ce-f9-af-47, cisco-av-pair=mdm-tlv=device-platform-version=6.3.9600 , cisco-av-pair=mdm-tlv=device-type=FUJITSU LIFEBOOK E744, cisco-av-pair=mdm-tlv=device-public-mac=ab-bd-ce-f9-af-47, cisco-av-pair=mdm-tlv=ac-user-agent=AnyConnect Windows 4.6.01103, cisco-av-pair=mdm-tlv=device-uid=C3FFF95AFDEE9CBA21839EA8D594D7F87165993CE2C8853A262179F90AC70167,"
| rex mode=sed "s/cisco-av-pair=mdm-tlv=//g"
| extract pairdelim="," kvdelim="="

props.conf

SEDCMD-trim = s/cisco-av-pair=mdm-tlv=//g

View solution in original post

0 Karma

to4kawa
Ultra Champion
| makeresults
| eval _raw="calling-Station-ID=15.15.15.15, NAS-Port-Type=Virtual, Tunnel-Client-Endpoint=(tag=0) 95.90.193.23, cisco-av-pair=mdm-tlv=device-platform=win, cisco-av-pair=mdm-tlv=device-mac=cc-ed-ce-f9-af-47, cisco-av-pair=mdm-tlv=device-platform-version=6.3.9600 , cisco-av-pair=mdm-tlv=device-type=FUJITSU LIFEBOOK E744, cisco-av-pair=mdm-tlv=device-public-mac=ab-bd-ce-f9-af-47, cisco-av-pair=mdm-tlv=ac-user-agent=AnyConnect Windows 4.6.01103, cisco-av-pair=mdm-tlv=device-uid=C3FFF95AFDEE9CBA21839EA8D594D7F87165993CE2C8853A262179F90AC70167,"
| rex mode=sed "s/cisco-av-pair=mdm-tlv=//g"
| extract pairdelim="," kvdelim="="

props.conf

SEDCMD-trim = s/cisco-av-pair=mdm-tlv=//g
0 Karma

tfechner
Path Finder

ok - this is the easy way - works. will use this.

But the original _raw is altered.
I thought it might be a solution like:
DELIM="cisco-av-pair=mdm-tlv","=",

0 Karma
Get Updates on the Splunk Community!

Splunk at Cisco Live 2025: Learning, Innovation, and a Little Bit of Mr. Brightside

Pack your bags (and maybe your dancing shoes)—Cisco Live is heading to San Diego, June 8–12, 2025, and Splunk ...

Splunk App Dev Community Updates – What’s New and What’s Next

Welcome to your go-to roundup of everything happening in the Splunk App Dev Community! Whether you're building ...

The Latest Cisco Integrations With Splunk Platform!

Join us for an exciting tech talk where we’ll explore the latest integrations in Cisco + Splunk! We’ve ...