My node ban himself

[emiliorecio2]

Hi, I had different Bitcoin nodes running the last years and I find after running them a while, on the banned list (bitcoin-cli listbanned) appears my own IP. This is normal?
Right now I have a clean Raspberry Pi 3 running a dedicated BTC node. I'm not sure why my node is misbehaving :-P

Code:

{
"address": "181.49.43.12/32",
    "banned_until": 1530447213,
    "ban_created": 1530360813,
    "ban_reason": "node misbehaving"
}