-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 > -----Original Message----- > From: Jacob Ansari > Sent: Friday, April 27, 2001 9:26 PM > > Maybe I'm really missing something, but I can't seem to > get my 3com > AirConnect wlan pcmcia card to operate in promiscuous mode. > This is on w2k > pro and winnt4 (sp6a). Couldn't get the Linksys WPC11 card to work > in promiscuous mode either. Jacob, as far as I know, there are only two wireless network cards that support promiscuous mode. One of them if the Cisco 340 (formerly an Aironet product). If these cards are switched into promiscuous mode by something like tcpdump, it takes usually a reset/restart of the NIC or laptop to be able to send again (in normal mode). There are some wireless sniffing products that will handle it correctly and switch back without much ado. AiroPeek from WildPackets and the Sniffer Wireless from NAI are two of them. I had initially the same problem like you (had a Linksys card and AP), and exchanged the Linksys card against the Cisco 340. Not just am I able to sniff now, but the performance improved as well since the Cisco card does the WEP encryption on the card (unlike the Linksys where the driver (software) encrypts). On a side note, wireless sniffing is very much different from LAN sniffing. When in promiscuous mode you will not be able to send packets at the same time since the whole wireless RTS/CTS handshake is done differently. Regards, Frank -----BEGIN PGP SIGNATURE----- Version: PGP Personal Privacy 6.5.8 Comment: PGP or S/MIME encrypted email preferred. iQA/AwUBOutzr5ytSsEygtEFEQJzZgCg8xg6/4uNNFtSEe1/ttWGd8Ac0hkAn1yP 1EiSIj79ZsamRJ2MxSpdXGhP =DbeY -----END PGP SIGNATURE-----
This archive was generated by hypermail 2b30 : Sun Apr 29 2001 - 07:24:58 PDT