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Jerkmate
https://www.openprovider.com/glossary/ttl-time-to-live
TTL (Time To Live) - Openprovider
Time To Live (TTL) is a critical aspect of DNS management, determining how long a DNS record remains cached on resolving name servers.
ttl timeliveopenprovider
https://docs.molo17.com/gluesync/v2.2/core-hub/ttl-tagging.html
TTL (Time To Live) Tagging :: Gluesync documentation
ttl timegluesync documentationlivetagging
https://ask.wireshark.org/question/15050/udp-port-889-broadcast-ipttl-time-to-live-only-1/
UDP Port 889 Broadcast (ip.ttl "Time to Live" only 1) - Ask Wireshark
I found packets like this on my home LAN. A Google search
udp portttl timeask wireshark889broadcast