Regex in event rule not working

[pratiksha5]

I am trying to write a event rule. I need to filter it on the basis of event description. If the description dose not contain IP address then this rule should execute. 

Regex is : .*^(?!.*\b(?:\d{1,3}\.){3}\d{1,3}\b).*

I validated this on https://regex101.com/

But the rule is executing in both the conditions. Please guide. 

[Rahul Priyadars]

can u also post event rule conditions and details like this 

some limitations on regex in service-now

https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0690762

https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0749814

Regards

RP

[pratiksha5]

Hi Rahul, PFA

[Rahul Priyadars]

is this an expected out put of regex when i just put 2 octets in IP

Regards

RP

[pratiksha5]

Hi Rahul,

Yes, this is expected.