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Recent content by Uri

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  1. U

    how to tcpdump on RT-ac87u / EA8500 /other MU-MIMO router?

    Thanks for the information! :)
  2. U

    RT-AC88U

    Thanks a lot for the information. Back to the drawing board... ;)
  3. U

    RT-AC88U

    So I got a bagful of MU-MIMO clients under my hand and I am looking to see how they behave together (research purposes)... Trouble is - I'm unable to run them in promiscuous mode so I can't combine their packet traces. Trouble No. 2 - I don't know my left hand from my broadcom chipset (and what...
  4. U

    WTFast Setup ?

    While this is true, there are different pricing schemes and they do try to lower their costs, as research show that the most dominant policy actually implemented is "hot potato" - just get rid of other ISPs packets ASAP... some recent work are trying to find a way to achieve end-to-end...
  5. U

    how to tcpdump on RT-ac87u / EA8500 /other MU-MIMO router?

    @Nullity That sounds promising - Do you know if AsusWRT-Merlin will support the usage of the MU-MIMO functionality of the RT-AC87u?
  6. U

    how to tcpdump on RT-ac87u / EA8500 /other MU-MIMO router?

    I agree that with regard to capturing the Sounding frames, this should be straight forward. Trouble is, I am studying how the routers schedule the frames they transmit (a.k.a. User selection, how to group the clients together according to their SNR/V-matrix). That means I need to listen both to...
  7. U

    how to tcpdump on RT-ac87u / EA8500 /other MU-MIMO router?

    The thing is that in order to capture the traffic that a MU-MIMO NIC receives, I must either use promiscuous mode or capture from the router, and the Intel 7260 is not a MU-MIMO card (funny story, I actually spoke with Rivet Networks CEO in order to get these cards, no MU-MIMO NICs can be bought...
  8. U

    how to tcpdump on RT-ac87u / EA8500 /other MU-MIMO router?

    I wish to to run tcpdump on an RT-AC87U or on Linksys EA8500 in order to capture management, control, beacon & data packets sent to/from MU-MIMO clients. (I can also buy/use any other MU-MIMO Router if it will be simpler) Running tcpdump on the clients side (I have 15 Rivet 505A/525A/1535 NICs)...
  9. U

    802.11ac beamforming report makes no sense!

    Thanks!
  10. U

    802.11ac beamforming report makes no sense!

    @sfx2000 aren't you a resourceful guy to have around :) Just to clarify, your point is that the Mac's hardware is fine, but the software side is doing a bad job and spits out errors in the result, and buying a dedicated software for that, such as Airmagnet, might solve the problem, even running...
  11. U

    802.11ac beamforming report makes no sense!

    Thanks @sfx2000 , I pulled it down...
  12. U

    802.11ac beamforming report makes no sense!

    Hi guys, maybe someone more experienced in reading .pcap files could help me. links at the bottom. I have a single 802.11ac client (rivet killer 1535) and an AP (Linksys EA8500), and I have used a macbook air 2014 wireless diagnostics tool to sniff the packets from the air. Just as the spec...
  13. U

    can RT-AC87U log show outgoing packets order/time?

    I want to investigate RT-AC87U's MU-MIMO behavior, and for that end I wish to see the order in which the outgoing packets are sent. This could be easily achieved by sniffing the wifi in a regular case, but when doing MU-MIMO I suspect I will only get garbage (I don't have all the components for...
  14. U

    MU-MIMO isn't working... any ideas why?

    Cool. What is it that you were looking for?
  15. U

    MU-MIMO isn't working... any ideas why?

    A trace of 2.4Ghz of the Linksys EA8500 can be found here: https://drive.google.com/file/d/0B7X38eaciUXGRWlEYjNKaUx3NEE/view?usp=sharing There's a lot of noise, but I think packet #2 (MAC ending with 82:9c) is the beacon from the router. If you need anything else - let me know.
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