Messages in this thread |  | | From | Rob Landley <> | Subject | Re: Ethernet Error Correction | Date | Thu, 4 Oct 2001 17:34:17 -0400 |
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On Tuesday 02 October 2001 05:55, Vojtech Pavlik wrote: > On Tue, Oct 02, 2001 at 11:48:01AM +0200, Pavel Machek wrote: > > Well, if you checked all the cables, you'd most likely find the device > capable of sending the bad CRC frames. Also, if you use a switch (not ha > hub or coax), it won't work at all.
You can cause a lot of switches to degrate to HUB mode by overloading their arp cache mac address table thingy. (Fun for packet sniffing when you've got a card that can change its mac address in software. Send packets originating from a few thousand different mac IDs and watch the switch throw up its hands and go "AAAAAH!". Sniffing the right init sequence for a pppoe connection with nonstandard authentication can be a bit difficult otherwise, with modern hardware... :)
I haven't tried it on a very wide variety of manufacturer's switches, though. And I dunno how that relates to CRC behavior...
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