DHCP not working
pietro.cerutti at gmail.com
Wed Mar 1 12:36:40 PST 2006
On 3/1/06, Nathan Vidican <nvidican at wmptl.com> wrote:
> Pietro Cerutti wrote:
> > Hi List,
> > I can't get a DHCP lease from my cable modem, here are the details:
> > - The PC is a P4 500 MHz running 6.0-RELEASE just installed, GENERIC.
> > - I tried with three different NICs, without result:
> > -> a 3Com 3C509 (driver vx),
> > -> a RealTek (can't remember the model, is about one year old)
> > (obviously driver rl),
> > -> and a D-Link DFE-528TX (driver rl).
> > - The first two NICs are OK with static IP assignement, worked for
> > more than 1.5 years on 5.2.1-RELEASE and 5.4-RELEASE, I didn't tested
> > the last one since I just bought it today...
> > - The modem is OK, no problems with:
> > -> a laptop (i386 6-STABLE),
> > -> another laptop (Ubuntu),
> > -> a desktop PC (Win XP).
> > - My laptop has an integrated RealTek 8139C+ (driver re), and the
> > dhclient configuration is the same as the PC where the problem is
> > (default config), therefor the problem shouldn't be in the
> > configuration.
> > - I don't know if it's important, but the DHCP client never worked,
> > neither during sysinstall
> > - I tried disabling PnP OS in the BIOS, as I read in some forums, but nothing
> > Any ideas?
> > If more detailed infos are needed, please ask!
> > Thank you in advance!
> > --
> > Pietro Cerutti
> > <pietro.cerutti at gmail.com>
> > Non lasciar calpestare i TUOI diritti!
> > Don't let 'em take YOUR rights!
> > NO al Trusted Computing!
> > Say NO to Trusted Computing!
> > www.no1984.org
> > www.againsttcpa.com
> > _______________________________________________
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> Call your cable/internet provider. Some cable modems/providers limit the number
> of DHCP/mac addresses allowed per connection, here in our area the limit is 3,
> after than you have to pay for more. Have run into issues before, just call
> company and explain that MAC "xx:xx:xx..." is your new NIC and you can't get a
> dhcp lease with it, then ask if there is something they have blocking it?
With my ISP that number is two, but I tried with one and two different
machines connected to the modem, no way...
Neither it is the case that the modem remembers the first two MAC
which get a lease and discard all different Ethernet addresses cause,
as I said, the modem works well with three other machines (two laptops
and a desktop, clearly not all three togheter).
> That would be my first thing to try, second would be to utilize a different
> network (cheap $20 dsl/cable router oughta work - try it isolated and see if it
> gets a dhcp lease) - that way you rule out the issue being the network vs the
> machine vs the software.
I've got a switch, to which I could connect my laptop acting as the
DHCP server, and the PC acting as the client, and see if it works, but
I'm pretty shure that the network is not the problem.
I'm sure there's something basilar I'm missing, but can't notice what....
Thank you Nathan,
other advices are welcome!
> Nathan Vidican
> nvidican at wmptl.com
> Windsor Match Plate & Tool Ltd.
<pietro.cerutti at gmail.com>
Non lasciar calpestare i TUOI diritti!
Don't let 'em take YOUR rights!
NO al Trusted Computing!
Say NO to Trusted Computing!
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