Hi Really thanks for reply. Let me explain u my situation I have a device A and device B and both are connected to router R. I have a driver code running on router R, what I want is as of now, I don't want device A to be able to ping device B.
On 16-Feb-2018 11:05 PM, <[email protected]> wrote: > On Fri, 16 Feb 2018 22:08:10 +0530, Tarun Batra said: > > > i have a device connected to wifi, what i want is to block packets from a > > mac address of other device, i have to write driver for same, should i > use > > netfilter for same. > > Not sure why this is a kernel issue. > > iptables -A input -m mac --mac-source 00:00:ff:dead:beef -j DROP > > Most sane wifi routers give you a nice gui to set it up - look for a page > that > says 'MAC address security" or similar. Should be able to configure it to > only > accept packets from MAC addresses you list, or blacklist packets from > listed > addresses and allow all others. > > If your question is actually about something else, explain in more detail > what > it is you're attempting to do (and include some of the "why" as well - > "trying > to block packets from XYZ" is a "how". I'd estimate that 85% of the time, > when > we hear the "why" (for instance, "because packets from XYZ crash my ABC"), > it > becomes obvious that you should really be doing something else - in this > example, find out *why* ABC crashes and fix *that* rather than blocking > packets > (though of course, blocking the packets as a temporary measure while you > fix > the *actual* problem may be a good idea) > >
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