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Weird network adapter problem

 
 
harry
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      05-26-2005, 09:55 AM
Hi gurus,

I am facing some problems with my network adapter. I would give a full
description of the situation.

I have an onboard LAN card (Intel EtherExpress/1000, its a gigabit
ethernet controller) on a Intel Xeon processor 3.06Ghz. I am running
Rh9 (2.4.20-8 kernel). The problem is that though the eth0 interface
comes up, still I cannot even ping to other machines. I would give a
detailed view of my configuration files:

/////////////////START OF CONFIG FILES AND OTHER SYMPTOMS//////////

/etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.

127.0.0.1 localhost.localdomain localhost
141.11.90.104 HANVD446NT60 HANVD446NT60


/etc/resolve.conf

; generated by /sbin/dhclient-script
search hanover.thmulti.com
nameserver 141.11.88.64
nameserver 141.11.88.65


/etc/sysconfig/network-scripts/ifcfg-eth0

# Please read /usr/share/doc/initscripts-*/sysconfig.txt
# for the documentation of these parameters.
USERCTL=no
PEERDNS=yes
TYPE=Ethernet
DEVICE=eth0
HWADDR=00:0c:6e:b9:4c:8c
BOOTPROTO=none
ONBOOT=yes
NETWORK=141.11.88.0
BROADCAST=141.11.91.255
IPADDR=141.11.90.104
NETMASK=255.255.252.0
GATEWAY=141.11.88.250


/etc/modules.conf

alias usb-controller ehci-hcd
alias sound-slot-0 i810_audio
post-install sound-slot-0 /bin/aumix-minimal -f /etc/.aumixrc -L
>/dev/null 2>&1 || :

pre-remove sound-slot-0 /bin/aumix-minimal -f /etc/.aumixrc -S
>/dev/null 2>&1 || :

alias usb-controller1 usb-uhci
alias eth0 e1000


/etc/sysconfig/network-scripts/ifcfg-lo

DEVICE=lo
IPADDR=127.0.0.1
NETMASK=255.0.0.0
NETWORK=127.0.0.0
# If you're having problems with gated making 127.0.0.0/8 a martian,
# you can change this to something else (255.255.255.255, for example)
BROADCAST=127.255.255.255
ONBOOT=yes
NAME=loopbac


/proc/interrupts

CPU0 CPU1
0: 212830 0 IO-APIC-edge timer
1: 2962 0 IO-APIC-edge keyboard
2: 0 0 XT-PIC cascade
5: 0 0 IO-APIC-edge usb-uhci
7: 0 0 IO-APIC-edge usb-uhci, eth0
8: 1 0 IO-APIC-edge rtc
9: 0 0 IO-APIC-edge ehci-hcd
11: 0 0 IO-APIC-edge usb-uhci
12: 37828 0 IO-APIC-edge PS/2 Mouse
14: 12236 0 IO-APIC-edge ide0
15: 16490 1 IO-APIC-edge ide1
NMI: 0 0
LOC: 212750 212748
ERR: 0
MIS: 0


/proc/modules

ide-cd 35772 0 (autoclean)
cdrom 34176 0 (autoclean) [ide-cd]
autofs 13684 0 (autoclean) (unused)
e1000 70176 1
keybdev 2976 0 (unused)
mousedev 5656 0 (unused)
hid 22308 0 (unused)
input 6208 0 [keybdev mousedev hid]
usb-uhci 27404 0 (unused)
ehci-hcd 20456 0 (unused)
usbcore 82592 1 [hid usb-uhci ehci-hcd]
ext3 73376 2
jbd 56336 2 [ext3]


dmesg output (I have cut it short to only my problem)

e1000: eth0 NIC Link is Up 1000 Mbps Full Duplex
NETDEV WATCHDOG: eth0: transmit timed out


ifconfig output

Link encap:Ethernet HWaddr 00:0C:6E:B9:4C:8C
inet addr:141.11.90.104 Bcast:141.11.91.255
Mask:255.255.252.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:13367 errors:5546 dropped:5546 overruns:177
frame:0
TX packets:181 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:1212898 (1.1 Mb) TX bytes:11584 (11.3 Kb)
Interrupt:7 Base address:0xbc00 Memory:ff7e0000-ff800000

Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:1273 errors:0 dropped:0 overruns:0 frame:0
TX packets:1273 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:75147 (73.3 Kb) TX bytes:75147 (73.3 Kb)


running "service network restart" gives following output

Shutting down interface eth0: [ OK ]
Shutting down loopback interface: [ OK ]
Setting network parameters: [ OK ]
Bringing up loopback interface: [ OK ]
Bringing up interface eth0: [ OK ]

/////////////////END OF CONFIG FILES AND OTHER SYMPTOMS////////////

As you can see that I am not using DHCP. So I have tried to give a
static IP address (141.11.90.104) to it. I know it doesnt clash with
other Ip addresses since this is the same IP address that I get for
this ethernet card everytime I boot using windows XP and DHCP enabled.
I have also checked the IPs of the nameservers and they seem to be
correct. I only have one pointer to the root of the problem and that in
NETDEV WATCHDOG output with dmesg. What exactly is this ghost?? I am
unable to decipher the problem and have been held up for a week now.
The funny part is that the same configuration(with different IP add)
works with another machine(running RH9 and similar ethernet card) that
is in the same subnet.

I have also tried to use DHCP but my machine does not seem to connect
to the DHCP server, hence I tried the other option of giving static
IPs.

Please help me with this problem. Any pointers would be a great help
since I have run out of ideas...

Thanks in advance
Harry.

 
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Moe Trin
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Posts: n/a

 
      05-27-2005, 12:44 AM
In article <(E-Mail Removed) .com>,
harry wrote:

>I am running Rh9 (2.4.20-8 kernel).


1. RH9 is beyond "End of life". Try a newer distribution
2. 2.4.20-8 is the original "out-of-box" kernel. Red Hat released at least
nine updates, and 'download.fedoralegacy.org' released yet another.

> /etc/hosts


>141.11.90.104 HANVD446NT60 HANVD446NT60


[compton ~]$ host 141.11.90.104
Host not found.
[compton ~]$

The line should read

141.11.90.104 HANVD446NT60.domain.tld HANVD446NT60

with the appropriate domain. I suspect thmulti.com is part of the address,
but the network administrators don't have rDNS configured.

>/etc/resolve.conf


Not checked

>/etc/sysconfig/network-scripts/ifcfg-eth0


OK - to others - watch the netmask!

>/etc/modules.conf


OK

>/etc/sysconfig/network-scripts/ifcfg-lo


>NAME=loopbac


Editing typo? Should be loopback

>/proc/interrupts


> 0: 212830 0 IO-APIC-edge timer


> 7: 0 0 IO-APIC-edge usb-uhci, eth0


No interrupts from the Ethernet card. Bad sign, although the system has
been up for about a half hour.

>/proc/modules


>e1000 70176 1

OK

>dmesg output (I have cut it short to only my problem)
>
>e1000: eth0 NIC Link is Up 1000 Mbps Full Duplex


It thinks the link came up OK

>NETDEV WATCHDOG: eth0: transmit timed out


but something isn't right with the setup. This _could_ be a driver issue,
as your kernel is ancient, and a _LOT_ of work has going into that driver
of late.

[compton ~]$ grep -c e1000 * | grep -v ':0$' | column
ChangeLog-2.4.20:23 ChangeLog-2.4.29:21 ChangeLog-2.6.4:6
ChangeLog-2.4.21:9 ChangeLog-2.4.30:10 ChangeLog-2.6.6:17
ChangeLog-2.4.22:17 ChangeLog-2.6.10:22 ChangeLog-2.6.7:12
ChangeLog-2.4.23:12 ChangeLog-2.6.11:16 ChangeLog-2.6.8:1
ChangeLog-2.4.26:1 ChangeLog-2.6.12-rc1:15 ChangeLog-2.6.9:22
ChangeLog-2.4.27:24 ChangeLog-2.6.12-rc2:5
ChangeLog-2.4.28:19 ChangeLog-2.6.3:18
[compton ~]$

What about /var/log/messages?

>Link encap:Ethernet HWaddr 00:0C:6E:B9:4C:8C


[compton ~]$ etherwhois 00:0C:6E
00-0C-6E (hex) ASUSTEK COMPUTER INC.
000C6E (base 16) ASUSTEK COMPUTER INC.
150, Li-Te Rd., PeiTou
Taipei 112
TAIWAN, REPUBLIC OF CHINA
[compton ~]$

This appears to say that you can talk to the hardware OK.

> inet addr:141.11.90.104 Bcast:141.11.91.255 Mask:255.255.252.0
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:13367 errors:5546 dropped:5546 overruns:177 frame:0


REJECT!!!!!

1. You heard 13367 packets, although there is no interrupt count
2. You have dropped 5546 packets - they were there, but you didn't read them.
3. You had 177 overruns - packets that were partially overwritten

> TX packets:181 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:100
> RX bytes:1212898 (1.1 Mb) TX bytes:11584 (11.3 Kb)
> Interrupt:7 Base address:0xbc00 Memory:ff7e0000-ff800000


Well, you are having some kind of hardware problem. The first thing I'd
be looking at is the network cable, as giganet wants great cables that
are short, or fiber. Next, I'd be looking at the boot messages, both for
the eth0 interface, and the USB controller. You may notice that it's
sharing the interrupt, and appears to be unused (according to /proc/modules).
You might try removing the line from /etc/modules.conf for that.

>The funny part is that the same configuration(with different IP add)
>works with another machine(running RH9 and similar ethernet card) that
>is in the same subnet.


Compare the setups - specifically the boot messages and /sbin/ifconfig
output. Also check the cables.

>I have also tried to use DHCP but my machine does not seem to connect
>to the DHCP server, hence I tried the other option of giving static
>IPs.


Yes, this appears to be a hardware type problem, and because your
networking is not working at all, you can't contact the DHCP server.

Old guy

 
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Andrei Ivanov
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Posts: n/a

 
      05-27-2005, 06:22 PM
harry <(E-Mail Removed)> wrote:
> I have an onboard LAN card (Intel EtherExpress/1000, its a gigabit
> ethernet controller) on a Intel Xeon processor 3.06Ghz. I am running
> Rh9 (2.4.20-8 kernel). The problem is that though the eth0 interface
> comes up, still I cannot even ping to other machines. I would give a
> detailed view of my configuration files:
> [...]
> Link encap:Ethernet HWaddr 00:0C:6E:B9:4C:8C
> inet addr:141.11.90.104 Bcast:141.11.91.255 Mask:255.255.252.0
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:13367 errors:5546 dropped:5546 overruns:177 frame:0


There are some (plenty of!) inbound packets on the interface.
I would run "tcpdump -n" -- maybe its output would reveal something.

--
andrei
 
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