Messages in this thread |  | | Date | Sun, 29 Apr 2001 13:04:32 +0200 | From | Ingo Oeser <> | Subject | Re: 2.4.4 breaks dhcpcd with Realtek 8139 |
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On Sat, Apr 28, 2001 at 11:11:51PM +0100, Michael F Gordon wrote: > On Sat, Apr 28, 2001 at 11:29:15AM -0700, David Lang wrote: > > what sort of switch are you plugged into? some Cisco switches have a > > 'feature' that ignores all traffic from a port for X seconds after a > > machine is plugged in / powered on on a port (they claim somehting about > > preventing loops) it may be that the new kernel now boots up faster then > > the old one so that the DHCP request is lost in the switch, a few seconds > > later when you do it by hand the swich has enabled your port and > > everything works. > > I'm plugged in to a cable modem, with the DHCP server at the ISP. The > server requires the MAC address to be registered, so sending the DHCP > request with a different MAC address could cause the symptoms. I doubt > it's a timing problem - replacing the 8139 driver with the 2.4.3 version > but otherwise using the distributed 2.4.4 makes DHCP work as expected.
The Windows drivers distributed along with that Realtek cards have this problem[1] any many users of the CSN[2] run into the "secure mode" on our hubs/switches, causing their port to be disabled.
So we have just ported a BUG from Windows to Linux, if you are right ;-)
BTW: CC'ed the maintainer. He might be interested, as maintainers usally are on BUGs ;-)
Regards
Ingo Oeser
[1] Sometimes forgetting their MAC and sending either random or zero MAC out. This depends on whatever.
[2] Chemnitz Students Network - large LAN with >1000 computers -- 10.+11.03.2001 - 3. Chemnitzer LinuxTag <http://www.tu-chemnitz.de/linux/tag> <<<<<<<<<<<< been there and had much fun >>>>>>>>>>>> - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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