I'm the owner of the modem. I've found about this a couple of months back when I moved the modem to its own vlan and noticed the broadcast frames. I did some research into the author of the poem on Twitter (https://twitter.com/riojot/status/1268821579724541954), but nothing fruitful.
If anyone knows how the poem ended up in my modem, or even just what's ethertype 0x8300 all about, please comment!
If anyone knows how the poem ended up in my modem, or even just what's ethertype 0x8300 all about, please comment!