So most of that is multicast UDP
non-234-179.ipredate.net.50023 > 239.100.5.1.1234
And a bunch of other .2, .7, in this same multicast range
I would guess IPTV based stream??? But without seeing the actual packet details its hard to say for sure.
ipredate.net – I show that as
NetRange: 208.87.32.0 - 208.87.39.255
CIDR: 208.87.32.0/21
OriginAS:
NetName: SECUREHOST
Could be someone trying to request some sort of video stream?
Clearly ODD, you might be able to gleen some better info from the details of the packets. Do a capture on pfsense diag, and then open it up in your fav analyzer -- wireshark for example