Date: Mon, 11 Jun 2012 09:28:49 -0700 From: Adrian Chadd <adrian@freebsd.org> To: Monthadar Al Jaberi <monthadar@gmail.com> Cc: freebsd-wireless@freebsd.org Subject: Re: AP <-> STA: tcpdump shows duplicate ARP request from STA, but STA only sends one. Message-ID: <CAJ-VmonwquHPh%2BHcDDU0u1SNRf_eG6sRs_kVg-geaN=wGwUEsw@mail.gmail.com> In-Reply-To: <CA%2BsBSo%2BKF-OABC8v=3hPfn433Lhi2wkcP3Q%2B5Hu9H%2BHnpC2kGw@mail.gmail.com> References: <CA%2BsBSo%2BKF-OABC8v=3hPfn433Lhi2wkcP3Q%2B5Hu9H%2BHnpC2kGw@mail.gmail.com>
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Hi! The "null frame" is from hostap. It sends it out whenever a new station (re) joins. It's a broadcast frame that's harmless, designed to "seed" all the switches with the true location of the MAC address. As for dup packets, I'm not sure. Hm! Adrian
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