Networking :: Ethtool Command Not Changing Speed Of Ethernet Card?

Feb 14, 2011

I have a CentOS 5.5 machine (hosted at a remote hosting company) where "ethtool" reports that the eth0 device is currently in 10 Mbps mode, but the output indicates that it supports 100 Mbps. But if I try using ethtool to switch the device into 100 Mbps mode, it doesn't work; after running the command to switch it to 100 Mbps, ethtool reports the speed is still 10 Mbps:

[root@sls-eb5p17 network-scripts]# ethtool eth0
Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full

[Code]...

The man page at [URL]..ethtool seems to suggest that this should have worked. Any reason why the reported speed of the device didn't change? Changing other settings doesn't appear to work either, e.g. if I specify "duplex half" instead of "speed 100", eth0 still reports "Duplex: Full".

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Networking :: Can't Change To 1000 Speed With Ethtool?

Aug 9, 2010

I have two onboard gigabit connections and a PCI-E gigabit card, none of which seem to want to run beyond 100M. Everytime I issue the command to change speed to 1000M, it does nothing. I have tried modifying the interfaces file to make sure the command line for ethtool gets done automatically, but still no luck.

Below is the output from the use of ethtool to change speed. Since I am having performance issues with my local area networking (e.g. Samba transferring slower than the internet), I have been trying to figure out how to debug my network performance, and this was an obvious thing that stood out. The router and card are gigabit, yet don't use their full transfer rates.

[Code]...

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Hardware :: [AMD] 79c970 [PCnet32 LANCE] Cant Set Speed 1000 With Ethtool?

Jun 2, 2010

I have fedora 12 installed in VMWare ESX on a Dell Optiplex machine with a Intel GBit lan.While transfering from fedora's vsftpd to my workstation trough a sitecom gbit switch i get a real bad performance, mostly not higher then 8mb/s. (btw on the same ESX i have Windows 2008 from which i get around 60mb/s)I have tried to set the eth0 to 1000Mb/s full duplex using ethtools but this fails (ethtool -s eth0 speed 1000 duplex full autoneg off). I keep recieving the following error:

Code:
Cannot get current device settings: Operation not supported
not setting speed

[code]....

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Ubuntu Networking :: Ethernet Not Reaching Expected Speed?

Sep 13, 2010

I have been doing a variety of speed tests on my ethernet connection in preparation for upgrading my service and found that the connection on my dell d630 is not getting expected download speeds. In fact, it is getting about a third of the expected speed. This machine is running Lucid. It also dual boots Windows Vista. Checking Vista a moment ago, the speed is fine. What could be the problem that is preventing the ethernet from working at 100%?

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CentOS 5 Networking :: How To Restrict Ethernet Port Speed

Jul 6, 2010

I have a server in a colocation environment where I'm allotted 25Mbps. I'd like to avoid exceeding that for obvious reasons. Is there a way I can set the link speed or at least throttle the bandwidth for all services?

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Fedora Networking :: 14 Can't Connect To SpeedTouch 585 - Either Wireless Broadcom Card Or The Wired Ethernet Card

Dec 4, 2010

Just installed Fedora 14 from the Live CD i686 on my Dell Inspiron 1521. I can't connect to the SpeedTouch 585 on either wireless broadcom card or the wired Ethernet card.

I can connect to it from the same Laptop on the Vista which is on dual boot on the same laptop.

Further confusing is that I ran Fedora 14 and connected to another SpeedTouch today.

Already checked the Channel on the wireless nic and it's on the same one as the SpeedTouch.

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Fedora Hardware :: Unable To " Ethtool -s Eth0 Speed 1000 Duplex Full"?

Nov 5, 2010

have a " Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06)" NIC.I was unable to set it 1000bit and full duplexThe output lspci -v as below.Quote:

03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06)
Subsystem: ASUSTeK Computer Inc. Device 8432

[code]...

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Networking :: Multi Ip In One Ethernet Card?

Apr 24, 2010

can one ethernet card support multiple ip address? but i think it's very dangerous. if bad guy take many ip, other people can't get ip. "does one ethernet card take multiple real ip or multiple virtual ip(one real ip)?" if it takes multiple real ip, then how it works good?..

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Ubuntu Networking :: Can't Get Connection For Second Ethernet Card

Jun 6, 2010

I'm trying to set up a shared Internet connection that had been broken by a previous update, I believe. Eth0 is connected to the Internet, whereas eth2 should be the connection going to my Roku set-top box. Under the nm-applet icon, an entry exists for "Auto eth0" for the first card, but there is nothing under the second card except "disconnected". How do I make a connection entry under my eth2 card so that I can share my Internet connection with my Roku box?

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Ubuntu Networking :: Ethernet Card Not Getting Detected

Dec 3, 2010

I have brought a new DELL INSPIRON 1410. I installed ubuntu 10.04 but my ethernet card is not getting detected where as in windows 7 is working..

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Networking :: Connect Using An Ethernet Card Using Dhcp ?

Feb 15, 2010

My ISP finished some 'upgrades' on its infrastructure. The result is that I am having great difficulty in connecting to the internet.

I have 3 operating systems on my box - XP, Fedora 8 and Feota 12.

I connect using an ethernet card, using dhcp. In fedora 12, the ethernet card is controlled be networkmanager. After the ISP completed their upgrades, I was not able to connect. I tried to connect manually using

Code:

There was an error message -

Code:

I read the advice here: [url], and removed all but the important lines.

But even after that neither ifup eth0 or dhclient eth0 works.

In fedora 8, the ethernet card is activated by ifup eth0 in /etc/rc.local. I was able to connect on a couple of occasions, but that too stopped working. I tried both ifup eth0, dhclient eth0, and tried to use the gui( which fires the dhclient command), but none worked.

When I use windows, it takes about 2 minutes to get an ip (earlier it was immediate). Sometimes that doesnt work and I have to click on "repair" whereupon it starts working.

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Networking :: Configure My Ethernet Card To Work?

Sep 2, 2010

Tell me how to configure my Ethernet card to work. My pc only works wirelessly. I don't know what kind of Ethernet card is installed. I have Ubuntu 10.4 on a dell pc 1ghz, 20ghd, 512mb.

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CentOS 5 Networking :: Bind More Than 2 Ip In One Ethernet Card?

May 19, 2009

i did configure as it was advised on [URL]... but it didn't work. for eg I added eth0:1 and eth0:2 on /etc/sysconfig/network-scripts/ when i do ifconfig i can see only eth0:1, i cannot see eth0:2, eventhough i configured as it was on the tutorial

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Ubuntu :: Share Internet From 1st Ethernet AND To 2nd Ethernet And Wifi Card?

Feb 8, 2011

I am basically wanting to use my Ubuntu 10.10 computer as a router. Note: Before you say just get a router please note that I am poor/cheap. I have two ethernet connections and one wireless connection on my netbook. I want to share the internet connection that is going into one of the ethernet cards through the other ethernet card and the wireless card.

DSL-->1sr Eth --> 2nd Eth (currently works)
DSL-->1sr Eth --> Wireless Card (Adhoc) <--(connects with limited connectivity AKA no internet)

The 2nd Ethernet card already has working internet, but when I connect to the Wireless card (through an Adhoc network), it cannot get an IP (I believe).

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Ubuntu Networking :: 9.04 Recognizes Ethernet Card But Won't Connect

May 6, 2010

I own a D-Link DI-604 wired router and I've started getting some issues after Ubuntu 9.10 to 10.04 upgrade(Ubuntu 9.04 used to work OK!). The problem is that Ubuntu recognizes all my ethernet cards (see below), but I can only connect to the internet through eth1 not eth0 (which is my Windows default). If I try to plug the cable in eth0 nothing happens (at least not in Ubuntu 10.04 and 9.10).

Code:

lucas@lucas-desktop:~$ sudo lshw -C network
[sudo] password for lucas:
*-network:0
description: Ethernet interface

[code].....

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Ubuntu Networking :: Unable To Get PCI Ethernet Card Working Under 9.10

May 20, 2010

I have just installed a generic PCI ethernet card into a fairly low powered system (Celeron 766MHZ, 512mb Ram, 40 Gb HDD, Generic sound and video). The card came with no drivers. I have since installed Ubuntu 9.10, and up to a point everything is fine and looks great. However when I connect an ethernet cable up to the PCI card (in the hope of connecting with the Internet), nothing happens. I am thinking that I need Ubuntu drivers for the PCI card ? or does Ubuntu 9.10 come with drivers and I need to go into the 'engine room' to sort it all out ?

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Ubuntu Networking :: Cheapest, Most Compatible Ethernet Card?

Jul 2, 2010

I've had way too many problems with my network card under linux and I'm looking to buy a new one because the money is worth the lack of headaches. My project: I'm breathing new life into my old, old pentium 4 computer by running Kubuntu Server on it and using it as a little samba filedump.

So I don't want to spend a lot on an ethernet card -- this computer is no prize. I just want the cheapest, most out-of-the-box-compatible-with-no-configuration card I can buy.

I started on Newegg (sorted by price: [URL]....CE&PageSize=20 ), and I've heard that cards based on the RealTek 8129/8139 chip may be compatible/cheap but I can't seem to find out ahead of time what chip the cards are based on.

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Ubuntu Networking :: Ethernet Card Not Working In 10.04 Server

Jul 18, 2010

I've set up 10.04 Server so that I could install directly to a command line, due to the fact that Desktop was crashing during the install every time. The installation goes fine, except for the networking portion. DHCP fails every time I try it. So I set up a static IP as an alternative. Once installation completes, none of the network-oriented tools (ping, telnet) work. I've tried pinging my router and I get 'Destination Host Unknown'. This is true if I change to a DHCP oriented setup as well.

The router sees that the machine is there, as indicated by the slowly blinking connection light meaning that it's hooked up to *something* but there's no activity. Also, networking did work within Windows before I nuked it, so I know it has the ability to operate correctly. I'm at a loss, mostly due to my own newness and ignorance of how to start tackling this within this environment.

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Ubuntu Networking :: Replacement Ethernet Card Not Working

May 9, 2011

The on-board NIC on my machine died this morning, so I've just gone out and bought a replacement PCI card. The card has been recognised by Karmic, but it's not working. /var/log/messages says:

Code:
May 9 11:21:58 ian-desktop kernel: [ 2.082324] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
May 9 11:21:58 ian-desktop kernel: [ 2.082334] r8169 0000:04:02.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18

[Code]....

how I install the appropriate driver (noting that I have to sneakernet files across via usb stick), or any other diagnostics I should try?

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Networking :: Keep Losing Connection On Ethernet Card With Public IP's

Feb 11, 2009

I have a very strange problem with my Linux Router/Firewall machine where i keep losing my connection on the ethernet card.

I have installed a Debian 4 distro on a PC with 2 nics to create a router/firewall machine. On nic-1 i have connected the ADSL modem and on nic-2 a laptop for testing.

What i want is to build a DMZ with public IP addresses assigned to the servers in DMZ.

Schematic example:

Code:

We have a total of 16 Public IP's assigned to the ADSL modem from our ISP configured in routering mode. Unfortunately our new ISP does not support Bridge mode, otherwise i would not have this problem. (we had modem in bridge mode working fine with our old ISP, but they have stopped so we were forced to switch to another ISP. eth1 and eth2 both have public IP addresses from the modem set hardcoded in the /etc/network/interfaces on Linux pc and on my testlaptop in the DMZ (server-1) i have set another public IP (they all fall in the same network range) I have enabled IP forwarding on Linux router/firewall and for testing the firewall is set to allow all traffic.

When i try to ping the testlaptop in my DMZ from a remote machine outside in our datacenter i get no reply.

However when i run the following command: ip addr add xx.xx.xx.xx dev eth1 to assign the public IP i have chosen for the laptop to the inner nic (eth2) and then try to ping the testlaptop again from the remote machine it still does not reply ... but (and here is the most bizar thing)...

When i then run the following command: ip addr del xx.xx.xx.xx dev eth1 (where xx.xx.xx.xx is the ip of the testlaptop) and try to ping again from the remote machine then it seems to be working fine ... however only for a short time because then connection is lost somehow.

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Networking :: Rpm For Realtek 8169 Ethernet Card Is Not Installing

May 23, 2010

I am using DELL VOSTRO 1510 laptop , it has realtek r8169 ethernet card, i installed RHEL 5 in my laptop , i checked for the driver cd provided by DELL, they given one source rpm and two other rpm for ethernet card, i tried to install them through "rpm -ivh (path)/realtek-r8169 (full name).rpm " but it asking about dependency . i tried it by using yum also but still its not working.

also i tried to create binary rpm through source rpm, but it only generating spec not binary rpm, when i am using " rpmbuilt -ba (spec file) " its showing command not found error. RHEL5 have ethernet driver for realtek-8129 in their list but not for realtek-8169, i checked it in system-config-network window, now what to do, how do i install this rpm , i want to access net through RHEL 5.

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Networking :: VIA Rhine Ethernet Card Under Slackware 13.1 Won't Work

Mar 2, 2011

I have had some problems with a SATA DVD drive under installation of Slackware 12.2, [URL] So i tried 13.1 instead. But now the ethernet card is not working Its a VIA Rhine card, and it was recognized just fine under 12.2 The following command did nothing: Code: ifconfig eth0 up I am getting no errors. I have also tried using netconfig, no luck there either.

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CentOS 5 Networking :: Cannot Initialize Ethernet Card / Enable This?

Jun 7, 2010

I recently installed CentOS on a really old computer and while most things are running well, I am unable to connect to the internet. Using a Damn Small Linux live CD I am able to connect just fine and was able to see that that 'hp100' was being used as the netcard driver. When I tried to set up the network card using that adapter (HP10/100VG ....) it gives me the following error code...

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Fedora Networking :: System Does Not Recognize Ethernet Card (Eth0)

Jan 17, 2011

I had F14 up and running as a server working awesome. I shut it down and moved it. Now on start up, system doesn't seem to recognize my ethernet card...eth0. How to get my ethernet card back online?

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Ubuntu Networking :: Configure Second Ethernet Card For A Dhcp/dns Server?

Mar 2, 2010

i already have an eth0 configured to automatically get its info from dhcp.

but i wanna configure eth1 to be able to serve dhcp and dns. i havent configured either dns or dhcp server on the server box since i have not configured the serving interface.

so far my interfaces file is:

Code:
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
auto eth0
iface eth0 inet dhcp

[Code]....

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Ubuntu Networking :: Check My Ethernet Card Supports Gigabit?

Jun 8, 2010

With what command i can check whether my Ethernet card supports gigabit speed Ethernet or not?

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Ubuntu Networking :: Lucid Won't Detect Laptop Ethernet Card?

Nov 15, 2010

so, when i first got my laptop it came with vista and the ethernet worked fine, then when I decided to install Karmic about 9 months ago it still worked fine. After a while the update for lucid came out so I upgraded to that and then the ethernet started getting buggy. It would only work about half the time that i wanted it too and the other half of the time it would just stare at me and not move anywhere. So along with a couple other bugs I decided to format my harddrive and downgrade back to karmic and await the 10.10 release. unfortunatly my ethernet woes carried with me and they still would only show up on occasion. then about half way through my time with karmic round 2 it stopped altogether, and with the upgrade back to lucid it hasn't seemed to solve itself.

I ran through ifconfig -a, lspci and sudo ifup -a but they all tell me that the device doesn't exist.

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Ubuntu Networking :: Drivers For The Atheros AR8151 Ethernet Card?

Jul 17, 2011

have a toshiba satellite L745 running Lucid Lynx I need drivers for the Atheros AR8151 ethernet card. Every post I have read on installing the driver give links to Atheros but they are all broken. Does anybody know where I can download driver?

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Ubuntu Networking :: On-board Ethernet Port Not Detected - Have To Use PCI Card?

Jul 21, 2011

I'm running an ubuntu maverick server, and I'm having a slight problem with networking. I've only got one ethernet line running into my room, and I've got loads of computers. The server has 2 ethernet ports, one integrated into the motherboard, one on a PCI card that I took from my old server. The on board ethernet never worked on my old server- but I only tried it out post-install, it was hooked up to the card during install (For the record, networking on linux has *never* worked for me if I installed then plugged in the networking stuff after the fact). So I just used the card instead. Transferred the hard drive into a new machine, and lo and behold, it would only work after I transferred in the card from the old one. What I wanted to set up is a basic NAT system, where the network connection is routed through from my server to my main desktop- but when I run ifconfig, my card is not detected, just lo and eth0. How can I fix this?

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Networking :: SME+Compaq Presario - Can Only Get One Ethernet Card Working At A Time

May 25, 2010

I have an older Compaq Presario S6000CL, specs for it are here:

*Product Specifications Compaq Presario S6000CL Desktop PC - HP Customer Care (United States - English)

Motherboard and bios here:

*Motherboard Specifications, A7V8X-LA (Kamet 2) Compaq Presario S6000CL Desktop PC - HP Customer Care (United States - English)

I am trying to get SME Server set up as a private server/gateway. Problem is no matter what I do I can only get one ethernet working at a time and only to the internet, not the local network. I tried both SME Server 7.4 and 8.0 beta 5 witht he same result. Now of course I checked the ethernet cards. The two I have now on it do work. One of them is the onboard ethernet the other one is in the second pci slot. They jsut don't work at the same time. (also I am familiar with SME and I had it configured correctly. Even if I messed up the order of the cards it is easy enough to just get up and switch the cables, reboot, etc.) I thought maybe there was a jumper setting or an over ride of some sort to let me use two ethernet cards. <I previously had all of this set up with an old HP computer (came with windows 98 originally.) But that computer decided it was time to retire to the road side.> It seems that it should just work. Any ideas on what I am missing or what I can do?

Edit:Spent another hour trying to get it to work and still nothing. It is picking up both ethernet cards just fine, I just updated sme 8 beta5 so the internet is working fine. I just can't get the local ethernet card to do anything at all, even though it is showing up as a green ok at boot. I checked the bios and I am not seeing anything there. It had an option to enable/disable LAN (which is enabled but I tried both and using to PCI ethernet cards. Didn't do anything different.) It has a Local LAN boot rom option, tried it enabled and disabled (Disabled now.) and nothing. I turned off the serial and parallel ports (doesn't make a difference either way.) I looked all over the motherboard and the only thing I can find is the jumper to reset the password. If a computer that was at least 12 years old could run SME and don't see why this one can't, it is half that age and a much better computer hardware wise.

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