#5261 NORM Never A: promiscuous mode corrupts all input

Zarro Boogs per Child bugtracker at laptop.org
Sun Dec 2 06:17:58 EST 2007


#5261: promiscuous mode corrupts all input
----------------------+-----------------------------------------------------
 Reporter:  dwmw2     |       Owner:  dwmw2         
     Type:  defect    |      Status:  new           
 Priority:  normal    |   Milestone:  Never Assigned
Component:  wireless  |     Version:                
 Keywords:            |    Verified:  0             
----------------------+-----------------------------------------------------
 As soon as I run 'tcpdump' in promiscuous mode, all network communication
 breaks. Tcpdump sees complete crap. Running it in non-promisc mode works
 fine. This network uses WEP.

 {{{
 11:29:13.851517 00:0d:93:7a:3f:2c Unknown SSAP 0xa8 > 00:50:43:28:0a:c3
 Unknown
 DSAP 0xd8 Information, send seq 58, rcv seq 0, Flags [Response], length
 120
         0x0000:  d9a9 7400 0680 0031 9fc1 b419 6fd3 decc
         0x0010:  4807 53e3 3d70 0bd7 a102 5e1a dfc0 8a29
         0x0020:  dcf4 e916 72ff c294 aa09 3ee7 d3d1 256a
         0x0030:  390a 2ba6 a131 47eb e813 c718 1367 34ef
         0x0040:  dea0 d936 1ede 101c 3b38 59e4 c675 1910
         0x0050:  d6ce 76c2 7529 ec66 e8a7 13d4 25d3 0fa5
         0x0060:  964c b25a a229 7a70 4dfe 62b0 c685 ec40
         0x0070:  2eb5 2fd2 53d1 3d2e
 11:29:13.852506 00:0d:93:7a:3f:2c Unknown SSAP 0xa8 > 00:50:43:28:0a:c3
 Unknown
 DSAP 0xd8 Information, send seq 58, rcv seq 0, Flags [Response], length
 120
         0x0000:  d9a9 7400 0680 0031 9fc1 b419 6fd3 decc
         0x0010:  4807 53e3 3d70 0bd7 a102 5e1a dfc0 8a29
         0x0020:  dcf4 e916 72ff c294 aa09 3ee7 d3d1 256a
         0x0030:  390a 2ba6 a131 47eb e813 c718 1367 34ef
         0x0040:  dea0 d936 1ede 101c 3b38 59e4 c675 1910
         0x0050:  d6ce 76c2 7529 ec66 e8a7 13d4 25d3 0fa5
         0x0060:  964c b25a a229 7a70 4dfe 62b0 c685 ec40
         0x0070:  2eb5 2fd2 53d1 3d2e
 }}}

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Ticket URL: <http://dev.laptop.org/ticket/5261>
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