[98335] in RedHat Linux List
Re: DHCP Problems - "The Saga Continues"
daemon@ATHENA.MIT.EDU (Steve Ettorre)
Sun Nov 8 10:50:00 1998
Date: Sun, 08 Nov 1998 10:47:37 -0500
From: Steve Ettorre <sme@nycap.rr.com>
To: redhat-list@redhat.com
Resent-From: redhat-list@redhat.com
Reply-To: redhat-list@redhat.com
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Steve Ettorre wrote:
>
> I previously posted:
>
> > I am hooking up a second computer to the Time Warner roadrunner cable modem network in Albany, NY. The first computer has been running smoothly using RH v4.2 with dhcp at boot time. I am running v5.1 on the new computer. At boot the ethernet card is detected properly and dhcp fires. However, it is consistently fails. As additional information, I have somehow screwed up the configuration such that I cannot successfully ping anything - even localhost! When I run the network configurator under the control panel, both localhost and eth0 are inactive - I cannot activate them. Also, an odd observation - for v4.2 when dhcp fires it updates some network information contained in two files (resolv.conf and hostinfo-eth0) in /etc/dhcpc. This directory does not exist in v5.1. I went ahead and created it.
> >
> > I must be doing something stupid. Anyone have any recommendations for things to check or try out?
> >
> > ---------------------------------------------------------
>
> I have generated some additional information from ifconfig, route and netstat - please see the following:
>
> "invoke: ifconfig"
> lo Link encap:Local Loopback
> inet addr:127.0.0.1 Bcast:127.255.255.255 Mask:255.0.0.0
> UP BROADCAST LOOPBACK RUNNING MTU:3584 Metric:1
> RX packets:304 errors:0 dropped:0 overruns:0
> TX packets:304 errors:0 dropped:0 overruns:0
>
> eth0 Link encap:Ethernet HWaddr 00:10:5A:25:3E:C8
> inet addr:24.92.53.42 Bcast:24.92.53.255 Mask:255.255.255.0
> UP BROADCAST NOTRAILERS RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:0 errors:0 dropped:0 overruns:0
> TX packets:45 errors:0 dropped:0 overruns:0
> Interrupt:10 Base address:0x300
>
>
> "invoke: route -n"
> Kernel IP routing table
> Destination Gateway Genmask Flags Metric Ref Use Iface
> 24.92.53.0 24.92.53.1 255.255.255.0 UG 0 0 1 eth0
> 24.92.53.0 0.0.0.0 255.255.255.0 U 0 0 1 eth0
> 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 6 lo
> 0.0.0.0 24.92.53.1 0.0.0.0 UG 0 0 2 eth0
>
>
> "invoke: netstat -i"
> Kernel Interface table
> Iface MTU Met RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP TX-OVR Flags
> lo 3584 0 304 0 0 0 304 0 0 0 BLRU
> eth0 1500 0 0 0 0 0 46 0 0 0 BNRU
>
> As you can see from the ifconfig output, there are no packets received. A physical observation - I am using a cable modem - absolutely no lights flicker at all when I try to ping my gateway. The stuff is not getting out from the box to the network. I tried to ping this computer (24.92.53.42) from another network computer - no go!
>
> I would appreciate any insights/recommendations.
---------------------------------------------------------------------------------
Some additional information:
* The connection works fine when I reboot the new computer into Windows 98 - can bring up Netscape with immediate internet access (this is how I am mailing this thread). This seems to discount any hardware problems.
* When I installed the ethernet card (3Com 509B -TPO) in Windows 98 I just installed the 3Com drivers and immediately was able to access the internet - seemed easy. My guess is that the card is PNP configured. Is this a problem for RH Linux V5.1? Do I need to do something with the card itself?
TIA,
Steve Ettorre
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<html>
<p>Steve Ettorre wrote:
<blockquote TYPE=CITE>
<br>I previously posted:
<p>> I am hooking up a second computer to the Time Warner roadrunner cable
modem network in Albany, NY. The first computer has been running smoothly
using RH v4.2 with dhcp at boot time. I am running v5.1 on the new computer.
At boot the ethernet card is detected properly and dhcp fires. However,
it is consistently fails. As additional information, I have somehow screwed
up the configuration such that I cannot successfully ping anything - even
localhost! When I run the network configurator under the control panel,
both localhost and eth0 are inactive - I cannot activate them. Also, an
odd observation - for v4.2 when dhcp fires it updates some network information
contained in two files (resolv.conf and hostinfo-eth0) in /etc/dhcpc. This
directory does not exist in v5.1. I went ahead and created it.
<br>>
<br>> I must be doing something stupid. Anyone have any recommendations
for things to check or try out?
<br>>
<br>> ---------------------------------------------------------
<p>I have generated some additional information from ifconfig, route and
netstat - please see the following:
<p>"invoke: ifconfig"
<br>lo Link encap:Local Loopback
<br> inet addr:127.0.0.1
Bcast:127.255.255.255 Mask:255.0.0.0
<br> UP BROADCAST
LOOPBACK RUNNING MTU:3584 Metric:1
<br> RX packets:304
errors:0 dropped:0 overruns:0
<br> TX packets:304
errors:0 dropped:0 overruns:0
<p>eth0 Link encap:Ethernet HWaddr
00:10:5A:25:3E:C8
<br> inet addr:24.92.53.42
Bcast:24.92.53.255 Mask:255.255.255.0
<br> UP BROADCAST
NOTRAILERS RUNNING MULTICAST MTU:1500 Metric:1
<br> RX packets:0
errors:0 dropped:0 overruns:0
<br> TX packets:45
errors:0 dropped:0 overruns:0
<br> Interrupt:10
Base address:0x300
<br>
<p>"invoke: route -n"
<br>Kernel IP routing table
<br>Destination Gateway
Genmask Flags Metric Ref
Use Iface
<br>24.92.53.0 24.92.53.1 255.255.255.0
UG 0 0
1 eth0
<br>24.92.53.0 0.0.0.0
255.255.255.0 U
0 0
1 eth0
<br>127.0.0.0 0.0.0.0
255.0.0.0
U 0 0
6 lo
<br>0.0.0.0 24.92.53.1
0.0.0.0
UG 0 0
2 eth0
<br>
<p>"invoke: netstat -i"
<br>Kernel Interface table
<br>Iface MTU Met RX-OK RX-ERR RX-DRP RX-OVR
TX-OK TX-ERR TX-DRP TX-OVR Flags
<br>lo 3584
0 304 0
0 0 304
0 0 0 BLRU
<br>eth0 1500 0
0 0 0
0 46 0
0 0 BNRU
<p>As you can see from the ifconfig output, there are no packets received.
A physical observation - I am using a cable modem - absolutely no lights
flicker at all when I try to ping my gateway. The stuff is not getting
out from the box to the network. I tried to ping this computer (24.92.53.42)
from another network computer - no go!
<p>I would appreciate any insights/recommendations.</blockquote>
<p><br>---------------------------------------------------------------------------------
<br>Some additional information:
<ul>
<li>
The connection works fine when I reboot the new computer into Windows 98
- can bring up Netscape with immediate internet access (this is how I am
mailing this thread). This seems to discount any hardware problems.</li>
<li>
When I installed the ethernet card (3Com 509B -TPO) in Windows 98 I just
installed the 3Com drivers and immediately was able to access the internet
- seemed easy. My guess is that the card is PNP configured. Is this a problem
for RH Linux V5.1? Do I need to do something with the card itself?</li>
</ul>
TIA,
<br>Steve Ettorre
<ul>
<br>
<br> </ul>
</html>
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