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what would cause >1TB of "ip6 broadcast" in last 20 days?

Adam1Adam1 Member
in Help

I have a vps, with debian 9 lamp+postfix/dovecot install, mostly idle as I moved what i was running on it to a dedi.

I was doing a final check to make sure i've moved everything and noticed it had used way more bandwidth (>1TB) than expecting (probably < 30GB). Using bmon, I noticed that it showed over 1TB of ip6 broadcast tx and over 200GB rx.

an additional 50GB of it was showing when i checked this morning.

using tcpdump im not seeing anything but portscanners and ssh/http connection attempts.

googling it I just get pages of ipv6 not support broadcasts and I'm stumped.

what can I do to find out what's happening?

TIA

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