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Old 04-12-2006, 04:29 PM   #1
ekdya
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NO DHCPOFFERS received


Hi

I am getting NO DHCPOFFERS received as below and not knowing how to
fix it.
using debian testing 2.6.15 kernel, I disconnect the adsl modem/router
for 10 seconds but that does not work, I eventually have to reboot.

thanks

****************************************************************
debian:/home/fred# ifup -a
Internet Software Consortium DHCP Client 2.0pl5
Copyright 1995, 1996, 1997, 1998, 1999 The Internet Software Consortium.
All rights reserved.

Please contribute if you find this software useful.
For info, please visit http://www.isc.org/dhcp-contrib.html

sit0: unknown hardware address type 776
sit0: unknown hardware address type 776
Listening on LPF/eth0/00:02:e3:20:ec:e6
Sending on LPF/eth0/00:02:e3:20:ec:e6
Sending on Socket/fallback/fallback-net
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 6
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 13
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 11
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 19
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 11
No DHCPOFFERS received.
No working leases in persistent database.

Exiting.

Failed to bring up eth0.
****************************************************************
 
Old 04-12-2006, 04:59 PM   #2
nx5000
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Did it work before, what did you change then?

Try to do /etc/init.d/networking restart
 
Old 04-12-2006, 05:33 PM   #3
ekdya
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Quote:
Originally Posted by nx5000
Did it work before, what did you change then?

Try to do /etc/init.d/networking restart
always been like this, posted when I got fedup with it. if I #ifup -a not too long after #ifdown -a then all works fine but too ofter if I leave #ifdown -a for a long time then the error as in my op happens.
 
Old 04-12-2006, 09:08 PM   #4
jlinkels
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What computer, NIC and which driver do you use?

jlinkels
 
Old 04-12-2006, 10:57 PM   #5
ekdya
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from #lspci
Ethernet controller: 3Com Corporation 3c905B 100BaseTX [Cyclone] (rev 30)
Host bridge: Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX Host bridge (rev 03)
Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 02)
 
Old 04-14-2006, 08:59 AM   #6
jlinkels
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Hmm that is about the most widely used NIC, si it is unlikely that it is a driver error.

Have you tried to swap the nic for another one?

jlinkels
 
Old 04-14-2006, 02:12 PM   #7
ekdya
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I have 2 NICs one for WAN and the other for LAN, I will switch their functionality and report.
 
Old 04-27-2006, 04:09 AM   #8
ekdya
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I switched the 2 NICs, connecting the netgear "eth0 to the adsl, it
still gives the same problem, which is, if I #ifdown -a for some long
time and then #ifup -a, and ping www.google.com, I get, unable to find
host.
 
  


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