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20th February 2021
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hide ip/mac from arp scanning utilities on openbsd
Is it possible to hide my ip/mac from arp scanning utilities on openbsd? there are many such utilities on linux but they do not exist on openbsd
i rely on public wifi, and it is right by a CS centric school, there are a lot of script kiddies 
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20th February 2021
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You can disable arp(4) for an interface with ifconfig(8).
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1st March 2021
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You could try to pf.conf(5) to block all local 10,192 etc. (except router address and if the router don't NAT the connections locally then you are ok.)
I never tried this but logically if you block an incoming request then that would not get them a response so you would be ok. But if they have access to the router then after you connect to it you your mac is up there, so that would be impossible.
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1st March 2021
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ARP is a link layer (e.g. Ethernet) protocol.
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