Re: Is my newly installed NIC DOA?
- From: Jack Snodgrass <jacks_temp_id_indigo@xxxxxxxxxxx>
- Date: Mon, 09 Jul 2007 19:50:41 GMT
On Mon, 09 Jul 2007 19:39:12 +0000, Allen Weiner wrote:
I run Fedora 7. My PC is a seven-year-old Dell Dimension 4100.It did not
come with either integrated or standalone NIC. My Internet access is
dial-up only.
In order to have capability for DSL, I purchased an Intel PRO/100 M NIC
from a highly-rated seller on EBay. I've performed two tests to
determine if the NIC is OK. Both tests appear to have failed. But I have
zero experience with networking. So I'd like some guidance on whether
I'm using the correct tests, and whether they indeed have failed.
The first test is taken from the DSL Howto.
It consists of three steps:
1. Attempt to bring up interface: ifconfig eth0 10.0.0.1 up
2. Check response (ping it): ping -c 50 10.0.0.1
3. Use ifconfig to check for errors: ifconfig eth0
The rtt times reported by ping lead me to think that data was
transmitted, but the RX bytes and TX bytes reported by ifconfig are both
zero.
The second test is taken from the Intel PRO/100 M users guide,
describing how to run NIC diagnostics under Linux:
ethtool -t eth0
The output from this test is: FAIL
Following is a screen capture from both tests:
Script started on Mon 09 Jul 2007 01:29:29 PM EDT
]0;root@localhost:~ [?1034h[root@localhost ~]# ping -c 50 10.0.0.1
PING 10.0.0.1 (10.0.0.1) 56(84) bytes of data.
64 bytes from 10.0.0.1: icmp_seq=1 ttl=64 time=0.163 ms
64 bytes from 10.0.0.1: icmp_seq=2 ttl=64 time=0.116 ms
64 bytes from 10.0.0.1: icmp_seq=3 ttl=64 time=0.112 ms
64 bytes from 10.0.0.1: icmp_seq=4 ttl=64 time=0.115 ms
64 bytes from 10.0.0.1: icmp_seq=5 ttl=64 time=0.119 ms
<snip>
--- 10.0.0.1 ping statistics ---
50 packets transmitted, 50 received, 0% packet loss, time 49001ms
rtt min/avg/max/mdev = 0.109/0.115/0.163/0.015 ms
]0;root@localhost:~ [root@localhost ~]# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 00:07:E9:01:B2:09
inet addr:10.0.0.1 Bcast:10.255.255.255 Mask:255.0.0.0
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
]0;root@localhost:~ [root@localhost ~]# ethtool -t eth0
The test result is FAIL
The test extra info:
Link test (on/offline) 1
Eeprom test (on/offline) 0
Self test (offline) 0
Mac loopback (offline) 0
Phy loopback (offline) 0
]0;root@localhost:~ [root@localhost ~]#
Script done on Mon 09 Jul 2007 01:31:21 PM EDT
.... what's the question... are you worried about the 0 counts for TX and
RX? if your pinging your local address, no packets go out on the NIC so
it will stay as 0 counts. I just tested this on one of my boxes.. I
disconnected my lan cable, pinged my IP Address ( NOT the 127.0.0.1
address ) and I got 10 good packets and no increase in RX or TX counts
for eth0.
If you can talk to the card enough to assign an IP Address, you should be
good to go.... I've had plenty of times where the card was not recoginized...
if this happens, you can't even assign an IP Address to it.
jack
--
D.A.M. - Mothers Against Dyslexia
see http://www.jacksnodgrass.com for my contact info.
jack - Grapevine/Richardson
.
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