I have list of IPs. I want to check the firewall traffic related to these IPs using inputlookup command. Kindly assist how can we upload the list of IP in splunk and check the traffic.
don't use inputlookup. use a lookup as a lookup.
The Splunk docs can tell you how to setup and use lookups.
https://docs.splunk.com/Documentation/Splunk/7.3.0/Knowledge/Aboutlookupsandfieldactions