[Discuss] IPv4: martian destination

[Rich Pieri]

A tangent to my wireguard fun, my home router went out of support
recently and needed to be upgraded, so I went with another Gl.iNet box
because I'm willing to pay for something less than 5 years old and
they've done the heavy lifting getting OpenWRT on it.

Since then I've been seeing entries like this in the syslog on my home
server machine:

kernel: [1020924.253499] IPv4: martian destination 0.0.0.0 from
192.168.1.2, dev br0

192.168.1.2 is the new router, br0 is the interface on my server.

I kind of know what martian source/destination are, but I'm at a loss
identifying the cause/source. Any clues to be found here?

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