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Date:      Sun, 24 Jun 2001 19:25:09 -0400 (EDT)
From:      "Ian P. Thomas" <ipthomas_77@yahoo.com>
To:        cjclark@alum.mit.edu
Cc:        freebsd-questions@freebsd.org
Subject:   Re: cable connection problems
Message-ID:  <200106242325.TAA00916@scraemondaemon.my.domain>
In-Reply-To: <20010623130834.A35721@blossom.cjclark.org> from "Crist J. Clark" at Jun 23, 2001 01:08:35 PM

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	I was unable to see any messages on boot regarding DHCP.  Here is what
dmesg says about the NIC.

fxp0: <Intel EtherExpress Pro 10/100B Ethernet> rev 0x0c int a irq 17 on
pci0.1 3.0
fxp0: Ethernet address 00:02:b3:1a:b2:81

	I do get this at the end though.  Is this the DHCP info you were
looking for?

arp: 00:30:65:a6:a4:f8 is using my IP address 0.0.0.0!
arp: 00:30:65:a6:a4:f8 is using my IP address 0.0.0.0!

	I think that ethernet address is the cable modem, which is a Motorola
SB4100 Surfboard, because I only have one NIC.  Is there a way to find out
for sure?

	My Windows 98SE TCP/IP is as follows:

Bindings	Novell Netware Client (used at college, cable doesn't use it)
Advanced	None
NetBIOS		I want to enable NetBIOS over TCP/IP (only used at college I
think)
DNS Config	Disable DNS  
Gateway 	Empty	
WINS Config	Disable WINS Resolution (Use DHCP is not checked)
IP Address	Obtain automatically

	Internet options has: 

Automatically detect settings 
Use a proxy server

	In Netscape I had to add in Manual Proxy Configuration

HTTP	proxy	Port 8080

	I don't think I am using DHCP in Windows.  Is there a way I can enter a
gateway, subnet mask, and IP address manually for my NIC?  I can get the
values from winipcfg.  I used tcpdump with the options you suggested after
running dhclient.  Here is the output.

08:32:46.919578 0.0.0.0.bootpc > 255.255.255.255.bootps: xid:0x3c77524f
[|bootp]

08:34:03.533741 0.0.0.0.bootpc > 255.255.255.255.bootps: xid:0x4a42dd2b
[|bootp]

08:34:03.538512 hes1.buf.adelphia.net.bootps > 255.255.255.255.bootpc:
xid:0x4a4
2dd2b Y:ny-chicagost1a-176.buf.adelphia.net S:hes1.buf.adelphia.net
[|bootp] (DF
)
 
	Anything else I should try?

Thanks for the help so far,
Ian

In the last episode, Crist J. Clark stated...
> 
> On Sat, Jun 23, 2001 at 11:22:03AM -0500, default013 - subscriptions wrote:
> > Ian,
> > 
> > Hi, I'm no networking expert or anything but... from my personal experience,
> > I believe that most cable provider's DHCP servers do not really support DHCP
> > for *NIX systems... Probably if one was knowledgable enough, one could set
> > this up to work but, I have had a few different O/Ses on my cable connection
> > and have found that DHCP never works quite right...
> 
> DHCP is a protocol defined in RFC2131. DHCP does not know anything
> about the operating system your host is running.
> 
> But to the original poster...
> 
> > ----- Original Message -----
> > From: "Ian Thomas" <ipthomas_77@yahoo.com>
> > To: <freebsd-questions@freebsd.org>
> > Sent: Saturday, June 23, 2001 10:19 AM
> > Subject: cable connection problems
> > 
> > 
> > >    I just installed my new Intel NIC and it shows up
> > > fine
> > > in dmesg.  I have also added these lines to rc.conf.
> > >
> > > network_interfaces="fxp0"
> > > ifconfig_fxp0="DHCP"
> > >
> > >    However, on reboot, I get this when I run an
> > > ifconfig -a
> > >
> > > inet 0.0.0.0 netmask 0xff000000 broadcast
> > > 255.255.255.255
> > >
> > >    I'm assuming that I should have a real IP.  In
> > > windows
> > > I don't use any software other than setting TCP/IP to
> > > not
> > > use DNS and obtain an IP automatically.  I also have
> > > Lan
> > > Settings set to automatically detect settings and use
> > > a
> > > proxy is enabled.  Any ideas?
> 
> I believe there is some output from dhclient(8) during the boot. Did
> you see it? Do you have a /var/db/dhclient.leases file? What's in it?
> Kill the running dhclient(8) and run,
> 
>   # dhclient fxp0
> 
> And watch the output. If things still are not working, try,
> 
>   # tcpdump -w dhcp.dmp 'port 68' &
>   # dhclient fxp0
> 
> And forward the tcpdump(8) results to the list.
> -- 
> Crist J. Clark                           cjclark@alum.mit.edu
> 
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> 


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