STB Sending ARP requests every 9 minutes

Question

IS there a particular reason that I keep getting ARP requests from the STB even though it has been assigned an IP?
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Answer 1

So there is no way to route that correctly?
I mean, I havent blocked any of that traffic.
I used to use a different router with my old service and well you guys supply one.
Since I have a new router now, I wanted to check how well the firewall was set up and if there was any automatic anti-spoofing on the router or if I had to set it up myself.
So with feeling insecure I turned my personal Outpost firewall back on on my computer.
Which is catching that as a spoofing attack of course.
But now my question is, couldnt that traffic be routed appropriately?
IT doesnt seem like a big deal, just a little messy.
And this thread is easily applying to FIOS INTERNET more and more as we talk.
Form what I get its the STB's looking for the DVR.
What would happen if you blocked that info coming across the bridge or routed the info appropriately vs blocking it.
Does it have to come across the bridge and if so why?
Form the looks of things I could definitely keep that on the coax side of things vs having it run across the bridge.
My comp recognizes it as spoofing but the router doesnt of course because its all behind the router.
Maybe you could help me further or someone else in defining the design of that communication.
Again its harmless and not a big deal its more curiosity than anything else at this point.