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AirPcap Nx issue
From: V M <vm.mre.list () gmail com>
Date: Thu, 26 Jul 2012 10:09:09 +0200
I just bought an AirPcap Nx device but I can't get reliable data for 2.4GHz 802.11n networks. The AP is configured for "Up to 130Mbps", client is configured for max 65Mbps, MCS7, 20MHz channel, 800ns GI, 1 spatial stream. The network is open (no WEP or WPA). I can see upstream frames (from client to AP) but no downstream frames, except for ACKs and beacons. I get a lot of invalid frames though (incorrect FCS). If I configure the AP for 802.11g ("up to 54Mbps") and client accordingly (54Mbps) everything looks good. I tested it using iperf configured for UDP @ 32Kbps, bidirectional. Attached capture files were collected with Wireshark, using the following versions: Wireshark Version 1.8.1 (SVN Rev 43946 from /trunk-1.8) x64 Airpcap software version 4.1.1 WinPcap 4.1.1 Attached captures for 11g and 11n networks (rename it in .zip). I tried to contact riverbed on this issue with no luck. Thanks, Valerio
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Airpcap_11n_issue.zi_
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Current thread:
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