DHCPCD Problems with Cox's new network
Shawn Rutledge
plug-discuss@lists.plug.phoenix.az.us
Tue, 29 Jan 2002 15:42:15 -0700
Did you try resetting power on the modem? I think the modem sees the
NIC's MAC address at powerup, and may refuse to talk to any other NIC
without a power reset.
On Tue, Jan 29, 2002 at 02:06:03PM -0700, John Kloian III wrote:
> Yeah, I pulled a boner and connected the cable modem directly with my
> windows box and then did the conversion (doh!). anyway, from I can tell
> they are looking at the MAC unless someone can tell me diffrerent of what
> xid: rejected would mean in pumps output to the daemon log.
>
>
> On Tue, 29 Jan 2002, Technomage wrote:
>
> >what this windows box connected to the cable modem directly?
> >
> >I did the same thing from a windows box INSIDE my natted network here and
> >didn't have this problem (the ip was grabed as soon as the change-over hit)
> >
> >perhaps this is why I was able to get a new ip with a linux box (it was the
> >gateway).
> >
> >Technomage
> >
> >On Tuesday 29 January 2002 09:40, you wrote:
> >> I think maybe I can verify that. I did the conversion with my windows
> >> box, which in restrospect was a bad idea. since Then i have not been able
> >> to get my firewall to grab an IP. I can put it in statically and pass
> >> traffic. When I use pump and watch the logs this is what I see right
> >> before a timeout:
> >>
> >> xid: 0x63aabbdf4a rejected <-> 0x64aabbddcf
> >>
> >> My suspicion is that this is their dhcp server rejecting my request on
> >> what I can only assume is the MAC address of my NIC. although I cannot
> >> find any decent documentation.
> >>
> >> On 28 Jan 2002, Craig White wrote:
> >> >On Mon, 2002-01-28 at 10:32, Jeffrey Pyne wrote:
> >> >> I've been having trouble, as well. I thought I had it all figured out,
> >> >> but apparently not. I did spend almost 2 hours on hold Saturday morning
> >> >> (listening to Tori Amos or Enya or whomever-- I requested AT LEAST two
> >> >> songs for the hold music, and the tech support guy replied that many
> >> >> other people had requested the same thing).
> >> >>
> >> >> Anyway, I found something interesting: I had been having trouble
> >> >> getting a DHCP lease for the past week. Sometimes I would not get a
> >> >> DHCP_ACK from their server. Other times I would get one and I would get
> >> >> my old @Home IP address, but then I wouldn't be able to ping my default
> >> >> gateway or connect to anything on the Internet. When I finally spoke to
> >> >> someone Saturday, I told him that I was getting an IP address of
> >> >> 24.x.y.z, but that I couldn't connect to anything on the Internet. He
> >> >> said, "Hmmmm, that's an @Home address; you should be getting an IP
> >> >> address that starts with 68." Interesting. He wanted me to look at my
> >> >> "Workgroup" setting, so I quickly connected my Win98 box to my cable
> >> >> modem and reconfigured it and rebooted. He had me change the Workgroup
> >> >> to "@COX.NET" and reboot. But while I was futzing around with this, he
> >> >> said a supervisor had just told him that their "provisioning server" was
> >> >> down and that I would not be able to get an IP address from DHCP until
> >> >> it was back up (oh, and there was no E.T.A.). After I expressed my
> >> >> displeasure and hung up, I tried rebooting the Win98 box just for fun.
> >> >> When I did, I immediately got an IP address and could connect to
> >> >> resources on the Internet. Bizarre. I connected my firewall back up
> >> >> and ran 'dhclient ne0' and I got my old IP address again (even after
> >> >> deleting /var/lib/dhcp.leases, which is an OpenBSD thing)). I tried
> >> >> manually assigning the values I received on my Windows box to my
> >> >> firewall, and then I could connect. So are they using some DHCP server
> >> >> that only hands out IP addresses for computers in the same "Workgroup?"
> >> >> If so, what about Macs (which they support)? I'm confused....
> >> >>
> >> >> Also, a guy at work said that he was told this weekend that the old
> >> >> LANCity modems don't work with the new network (or rather, they work,
> >> >> but only intermittently). (And indeed, http://status.cox.net/view.asp
> >> >> shows that this is an issue.) My co-worker is trading in his modem at a
> >> >> Cox office today. I have a LANCity modem, too. I think I'll trade it
> >> >> in just for the hell of it. What kind of modem do you have?
> >> >>
> >> >> ~Frustrated in Phoenix
> >> >
> >> >----------
> >> >I thought that someone mentioned that the new cox setup changes from a
> >> >hostname authentication to a mac address authentication to get dhcp
> >> >service. This would suggest that in the conversion process, the first
> >> >assignment with your cxXXXXXXX-x hostname captured the mac address of
> >> >your network interface and locked it down. Thus switching to another NIC
> >> >(computer/router device) would mean that it can't capture an ip address
> >> >unless you call customer support and they release it.
> >> >
> >> >If this is true, and I haven't verified it, this would make it a bad
> >> >idea to use a windows computer to get the ip address from the dhcp
> >> >server and then switching it out for a linux box.
> >> >
> >> >Craig
> >> >
> >> >________________________________________________
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> >> > post to the list quickly and you use Netscape to write mail.
> >> >
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> >>
> >> /**************************************************************************
> >>**/ /
> >> / / John Kloian III VP Network
> >> Operations / / Opnix, Inc.
> >> http://opnix.com / /
> >> / / .Innovating Internet
> >> Intelligence. / /
> >> /
> >> /**************************************************************************
> >>**/
> >>
> >> ________________________________________________
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>
> /****************************************************************************/
> / /
> / John Kloian III VP Network Operations /
> / Opnix, Inc. http://opnix.com /
> / /
> / .Innovating Internet Intelligence. /
> / /
> /****************************************************************************/
>
> ________________________________________________
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--
_______ Shawn T. Rutledge / KB7PWD ecloud@bigfoot.com
(_ | |_) http://ecloud.org kb7pwd@kb7pwd.ampr.org
__) | | \________________________________________________________________