This is the simplest way i could come up with.
| regex src_ip!="(^[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}$)"
This will remove all IPv4 addresses from your search. don't forget to switch "src_ip" to what field you are searching. (e,g, dest_ip, rx_hosts, tx_hosts)
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this is the most simplest way i came up with.
| regex src_ip!="(^[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}$)"
this will remove all IPv4 addresses from your search.
... View more