[olug] dhcpcd problem

[Nate Rotschafer]

Also my Dell Laptop (Inspirion 8100) which has an ethernet port built in 
refuses to work with dhclient and to obtain an ip address.  NOTE: this also 
happens with my compaq laptop.  My solution that works everytime to to 
install "pump" and just run it and then I get an address.

Nate


>From: David Walker <linux_user at grax.com>
>Reply-To: olug at olug.org
>To: olug at olug.org
>Subject: Re: [olug] dhcpcd problem
>Date: Thu, 25 Apr 2002 10:41:32 -0500
>
>A couple of weeks ago we observed DHCP failing to work with 3 laptops using
>built-in Xircom ethernet/modem under Windows 2000.  We gave up and 
>configured
>them with static IPs as it wasn't worth our time to investigate further.
>
>If you have access to a different brand of ethernet card try that and see 
>if
>it makes a difference.
>
>On Thursday 25 April 2002 10:17 am, Tanya Loughead wrote:
> > Thanks everyone for trying to help me.  To better describe my problem, 
>AND
> > what I have already tried to fix the problem, my UNIX-mentor suggested 
>that
> > I describe my problem in a more "exacting"  manner..... So, these are 
>his
> > words-- Sorry that it's so long.  I'm so grateful for your time and 
>help.
> > I solemnly hereby swear to always help other struggling Linux users, if 
>I
> > ever get to the point of knowing what the heck is going on!
> > So, here it is:
> > Problem: connecting to the Internet via Cox cable. DHCP is the
> > recommended protocol in Windows and Mac documentation provided
> > by Cox, yet what appears to be a correct Linux setup for DHCP
> > fails to yield proper network assignments of address, gateway
> > or DNS servers.
> >
> > Configuration: recent Dell laptop, PIII 128 with a Xircom 10/100/modem
> > combo PCMCIA, running unpatched Redhat 7.2. The kernel recognizes
> > the card and I can plumb the interface as eth0 manually with
> > ifconfig(8). Network options are set in /etc/sysconfig/network to
> > enable the interface at boot, DHCP is enabled, all according to
> > Redhat support documents. Normal runlevel is 3; loopback fails
> > initialization. Not sure if/what correct rc scripts for DHCP are
> > run or linked at all in /etc/rc3.d/. Make/model of cable "modem"
> > unknown.  No samba configured.
> >
> > Checked: Installation was re-done to ensure DHCP was chosen and
> > configured to be used. Apparently netcfg is no longer part of redhat?
> > The card is recognized by the stock kernel and the PCMCIA HowTo
> > bears this out, although some (unknown if relevant) Xircom bugs
> > have been fixed in more recent kernels. The link light activates
> > on both the card and the modem.  dhcpcd(8) run by hand generates
> > traffic for about a minute - debug output shows timeouts and tx/rx
> > lights on card do activate during negotiation. The command exits
> > with 14.
> >
> > A crossover cable and straight-through cat-5 have both been tried,
> > each time directly to the modem. A Win98 machine, similarly configured,
> > successfully initalizes its network using the same physical
> > configuration (via the straight ethernet cable) and DHCP. Lastly,
> > the "-r" flag was passed to dhcpcd to check for use of obsolete
> > DHCP protocol - nothing, but it did exit with 0 and leave a dummy
> > DHCP reserved net configured (169...). dhcpcd used without flags
> > (or -d) result in an RFC 1917 assignment (192.168.100) to the
> > interface, but no gateway is set. The Win98 machine when it initializes
> > gets a real net, address and gateway starting with 68.
> >
> > I'm hoping that I just haven't done the right dance to properly get
> > DHCP to work. I don't think I can completely eliminate the card
> > based on the above tests, but it would be quite unusual to have it
> > work only half-way. Normally I use NAT with a fixed addresses on
> > both sides, so I am unfamiliar with what I *had* understood to be
> > a pretty straightforward setup with DHCP.
> >
> > > -----Original Message-----
> > > From: Brian Roberson [mailto:roberson at olug.org]
> > > Sent: Wednesday, April 24, 2002 11:22 PM
> > > To: olug at olug.org
> > > Subject: Re: [olug] dhcpcd problem
> > >
> > >
> > > the #1 thing to check is.....
> > >
> > > is the driver properly loading into the kernel? here are a few
> > > key commands:
> > >
> > > "lsmod "
> > > ( list modeules...  look for your net card driver... trivial, but
> > > necisary )
> > > ifconfig -a
> > > ( if you dont know the module name for your NIC, this will tell
> > > you that you
> > > have SOMETHING loaded... you should see an interface named eth0 )
> > >
> > > In redhat, there are quite a few gui's to get your nic setup... I
> > > will let a
> > > redhat user walk you through those, of course once we determine
> > > if your nic
> > > is setup at the lowest layer or not.....
> > >
> > >
> > >
> > > On Wednesday 24 April 2002 09:41 pm, Tanya Loughead wrote:
> > > ....
> > >
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"Only those who think know, but those wo know always think."
Nate Rotschafer
Millard West High School
Omaha, NE


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