Ubuntu Networking :: 11.04 Management Of Network Card / Wired/wireless Setup?
May 1, 2011
I am facing a problem with the management of my network card after installing Ubuntu 11.04 32-bit Desktop edition.
There are two Network Cards and one USB adapter which I'd like to drive:
- Ethernet controller Broadcom Corporation NetXtreme BCM5703X Gigabit Ethernet (rev 02)
- Ethernet controller Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
- Realtek Semiconductor Corp. RTL8187 Wireless Adapter
Actually I need the wireless adapter to connect to the AP, so both of the ethernet card should be disabled. Infact, when I try to access to the AP I must disable the eth0 card by using (sudo ifconfig eth0 down), otherwise the route assigns the default gw (192.168.1.1) to the eth0 device and the network is useless.
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Feb 25, 2010
I'm trying to set up a wireless or wired network (wireless would be better...) to share my connection with my housemate, as well as with some devices. The only guide I found regarding this (I must admit, I didn't have much time to put into research), was dating back to 2005, and although doable, seemed somewhat confusing. Getting to the point: is there a way (maybe a standalone program, or some kind of plugin) to share a connection?
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Sep 12, 2010
I just installed Lucid Lynx on my Dell Vostro 1000 laptop. The problem I'm having is that my wired network card has died on me prior to installation. I'm having the hardest time finding the required files to make my Broadcom BCM4311 wireless card work without being able to download any packages from the web. If anyone knows which files I need and which order I should use to install them that would be great.
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Aug 21, 2010
I'm running Ubuntu 10.04 Server. I can't get my Wireless Card & Wired Card to work at the same time. My interfaces file is incorrect, when I comment out 1 of the interfaces the other works. I have attached my interfaces file.
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Mar 11, 2011
I have just done a new install of the latest opensuse 32bit and for some reason I cannot connect to the internet, when I click on mange connections the vpn tag is highlighted and all the other tabs are grayed out and I cannot select them. So I can't setup a internet connection wired or wireless. I was just using Kubuntu and did not have this problem. My card is broadcom.
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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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Jan 26, 2011
Just installed ubuntu 10.10 on a Compaq Presario X6000 laptop... installed it inside Windows 7 and now I'm having problems going to the internet (wired.. or wireless).
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Apr 24, 2010
I'm having trouble getting my network set up the way that I want it/had it. You see, when I first set up my network, I just had my cable modem going directly to my standard wired router (A D-Link DI-604), which had DHCP,and was connected to all of the computers on my network. I had one switch hooked up to one of the ports of the router, but this was a regular switch, and it would not try to assign IP addresses, it would just pass through the DHCP info as I wanted.
Now however, my network setup has changed. My room mate and I both got laptops, and we decided that we wanted to have wireless access so we didn't have to constantly plug in to the router.
Now my network is set up like this: The modem is hooked up to the router(DI-604), which is hooked up on the LAN side to our computers, our switch (which is hooked up to 3 more computers), and to a wireless router card (A Gigabyte GN-BC01).
The wireless router card has two jacks for ethernet. One for WAN, and one for LAN. The LAN side we have plugged only into the computer in which the card is installed.
Now the problem is this: The wireless router card comes with DHCP by default, and it's assigning addresses to the laptops and to the computer hat it's in, and worse, the IP addresses are on a different subnet than that of the main dlink router. The Main (dlink) router assigns addresses from 192.168.0.1 (itself) to 192.168.0.254, while the wireless router card assigns addresses from 192.168.1.1 to 192.168.1.254 (itself).
Because of this, I cannot access services on the wireless network from my wired network or vice versa. The first thing I tried was setting the card to assign addresses from 192.168.0.12 to 192.168.0.253, however it just said "internal error" when I tried to do this. I decided that this may be because it sees that it was being assigned an address on it's WAN side on the same subnet. So the next thing I tried was disabling DHCP and setting the "LAN IP Address" to 192.168.0.12, hoping that the DHCP would just go through the card, like a switch. I would have set the LAN IP address to be assigned by DHCP, but this was not an option, so I decided that'd be the best thing to set it to.
Once again however, setting the LAN ip address to an address on the same subnet as that of the IP assigned to it's WAN side caused it to report an "internal error". I verified that this was the issue by setting the LAN address to several other private IP addresses to test (I.E. 10.0.0.1, 192.168.3.1, 192.168.5.12).
My question then really is: How do I set up both routers so that I can access services and computers from each network from the other network. Should I set them with different subnets and set the gateway on the wireless network to the main router? To the wireless router card? Should I put them on the same subnet? Will it know how to communicate?
Here is a link to (picture) my network diagram. Network Diagram
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Dec 8, 2010
I have a 64 bit install of Ubuntu 10.04, I was surfing up to 11:30pm EST last night, shut down for the night, upon reboot am unable to connect to the internet or my local network. Ubuntu seems to think that I have no ethernet cables connected.My networking is controlled by my motherboard (Gigabyte P55A-UD4P) and the problem is not on my cable modems side. The modem has multiple wired jacks, all of them are unresponsive with my Ubuntu PC while my roommate can connect to all of them with his Windows 7 PC. Both network cables (the one connecting to his box and the one connecting to mine) are interchangeable: They both work on his and neither on mine, so there is no broken cable.I've followed the troubleshooting in other posts, here are some commonly requested diagnostics:
ifconfig -a
Code:
eth0 Link encap:Ethernet HWaddr 6c:f0:49:53:1f:c0
[code]...
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Sep 25, 2010
Would it be possible to insert another wired network card into the router-connected computer, share the internet connection and be able to transfer files between the two?
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May 10, 2010
Ok, so I upgraded my acer aspire one to the new Ubuntu 10, and at first everything was working fine, except the audio. Now, for some reason, my wireless and ethernet ports have died. I can't get online by either method. I can do ifconfig <device> up and it will show up if i do iwconfig or ifconfig, but the wireless isn't associated with the AP. Currently I'm trying to load some drivers for my atheros card, and we'll see how that works outReally I was wondering, how come the modules don't load at boot time, and how can I fix this? I've been a Linux user for quite sometime, however I've been more of end user
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Jul 21, 2011
can i be connected to both wired and wireless network at the same time iam using backtrack4 which is based on ubuntu 8
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Mar 22, 2010
I just installed (dual-boot with Vista) Ubuntu 9.10 in my Toshiba Satellite M300. The problem is that (when using Ubuntu 9.10), its network is dead, both wireless and wired. The LEDs of the LAN port don't even blink. My wifi is not also detected. Both of my wifi device and LAN port are functional when using Vista.
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May 3, 2010
I am running ubuntu 9.10 on a dell xps m1530 laptop dual booting with windows 7. I am trying to achieve the following setup.
Wireless router <=========> Laptop <-----> Switch <-----> PS3
---- wired
==== wireless
Both laptop and ps3 have static ip addresses
The reason for this is I can connect to the internet on my ps3 through my laptop, and I can stream from my laptop to ps3 through wired connection. This works fine in windows 7 all I had to do was right click bridge connections. As I dual boot I don't want to have to make any changes to the settings on the ps3.
My interfaces are:
eth0 - wired
wlan0 - wireless
I installed bridge-utils and created a bridge and added both eth0 and wlan0 to it. However I could not get it to work. I have also tried internet sharing through network manager and firestarter.
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May 5, 2010
I have just installed Ubuntu 10.04 on an HP Pavilion dv6000 series laptop, dual-boot. Everything is working except the networking. It can see wireless networks, and when I type in the password for my wireless network, it tries to connect, then asks for the password again. When I plug in the Ethernet cable, again it tries to connect, but after a few seconds gives up and tells me I am now offline.
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Sep 21, 2010
I'm not a total newbie, but run into some strange problems with my installation of Lucid.Everything was working fine yesterday. I shut down the laptop and powered it up this morning and had problems with network. I have two NICs (wired and wireless). Both are set to pick up IP settings from DHCP and both do, however when using wired network I can't communicate with outside world - can't even ping the default gateway (but pinging 127.0.0.1 or IP address of the NIC no problem, so stack should be OK).When on the wireless network everything works fine (otherwise I would struggle to write this post ).What is very weird though is that I have a VMWare Player installed and using Windows VM on wired network works just great!
I noticed that when you're persistent it happens that you can ping but huge chunks of traffic are lost (e.g. packet 1-10 would pass, 11-40 would be lost, 41-59 would pass and so on).I restarted Ubuntu, tried shutting down interfaces, disabling networking and nothing helped. I don't recall performing any changes (at least that I would be aware of).Can anyone suggest something?BTW. This is not DNS issue as both IP addresses and FQDNs do not work. When I refer to using a given network (wired or wireless) the other one is down with ifconfig command...
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Nov 30, 2010
I'm new to Ubuntu - I've decided to give Ubuntu Studio a go as an alternative to Windows. However, after installing it, neither of my network cards work. I have a Intel Pro Wireless 3945ABG wireless card, and a Broadcom Netlink Gigabit Wired card. Neither work, And I'm not sure how to. I've tried searching, and have come up with the .tgz file here, but I have no idea what to do with it I'm concentrating on the wireless card for the moment, seeing as that will be the main one I use.
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Nov 30, 2010
I am unable to connect to any network, wired or wireless. Network-manager and wicd are both gone, as in no longer installed. Please don't tell me to apt-get anything. I have no network connection. I have tried downloading packages for nm onto a usb stick only to find myself in dependency hell which ended with the impassible error "Requires installation of untrusted packages".
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Apr 24, 2010
I have installed Linux for the first time on an old Gateway purchased from work. The system seems up and running, but I can't get connected to my wireless or the wired network. I have tried using the network manager, but it isn't working. I have tried reinstalling Fedora 12 I have the following LSUSB and LSCPI output.
[Code]...
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Apr 29, 2011
F14 did not recognize my wired or wireless NIC upon installation. I have enabled network manager, what should I do from here? Here is my hardware specifications:
Network controller: Realtek Semiconductor Co., Ltd. Device 8176 (rev 01)
Ethernet controller: JMicron Technology Corp. JMC250 PCI Express Gigabit Ethernet Controller (rev 05)
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Mar 23, 2010
When i click the button to connect to a wireless network this message apears:Network management disabled
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May 25, 2010
Cannot activate network device eth0!"device eth0 does not seem to be present, delaying initialization".i cannot find my network card while i set up network configuration Now I use dual boot window 7 and fedora 9,I cannot find my network card in select network adapter while network configuration ,i have a network card Atheros AR8132 PCI-E fast Ethernet controller NDIS(620)and for wired in Accer laptop .
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Feb 17, 2009
I've installed F10 on my laptop since few days and I'm facing an annoying networking issue: the network connection seems to work well when, suddently, it goes down for a while, and then come back.This happens with both wired and wireless (Intel PRO/ Wireless 3945ABG) connection.
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Mar 31, 2011
I just got a new laptop...Dell Vostro 3500. Took off Win put on Ubuntu...all went fine. I did all updates and app downloads using my WIRED NETWORK as wireless wasnt working. However I was more interested in setting up the new computer. Anyway so after all is installed up pops "Broadcom STA Wireless driver" Proprietary driver do you want to install. Obviously I said yes...
Well now My wireless is working great but for some reason my Wired (auto eth0) no longer works. It just says disconnected and its grayed in. I'm pretty much a newbie but did try a few things like:
apt-get update
apt-get "something" essential (thats not a command just from memory it was something like that)
However I've had no luck. This Broadcom driver seems to have knocked out my wired network.
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Jun 15, 2011
I have had a vz modem card for some time now and it worked fine. However my employer upgraded from a PC5750 device to the new PC770 device. When I plug the old device (now deactivated) it shows and use to work fine. When I plug the new device in Ubuntu does not pick it up and show it in the networking options. I use to see it i n the upper right where I would select my wireless networks. I do get a green light on the card so I know its powered. So what do I need to do to get my Laptop to see the new card?
uname -a Linux mylt 2.6.32-32-generic #62-Ubuntu SMP Wed Apr 20 21:54:21 UTC 2011 i686 GNU/Linux
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May 15, 2011
I have a wireless network (192.168.1.0) that's bridged to the Internet and a wired one (192.168.0.0) that's only local. When I am connected to both networks, Natty wants to route my Internet traffic through the wired, local-only one.
Can I make it automatically "just work", so that the right network is chosen for Internet traffic? Otherwise, what's the workaround?
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Jan 19, 2009
I have a Mandriva linux box connected by cable to my router. When I stream audio using this box it crashes all the wireless computers on my network. There is no effect on wired computers. All but the one computer are windows (xp or vista). The affected wireless computers are not able to even find my wireless network. I have to reboot the router to get them online.
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Jun 17, 2011
The problem with my wireless network. I have Dell DV6 Pavilion 2115 eg laptop and i installed Ubuntu 11.4 and internet and wireless worked, until i reboted my system it has disapear. I cant no longer to connect to a wireless network. It dont shows me any wireless network. My wireless card is Atheros AR 9285 802.11b/g/n Wifi Adapter
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May 27, 2010
I recently installed Ubuntu 10.04 on an older PC and I'm having problems with the network card built into the motherboard. When I connect an ethernet cable into the ethernet port I get a solid amber light, and I can't connect to my router, (which is being directly connected). Nothing is shown in Network Connections, but on another PC with the same version of Ubuntu it shows "Auto eth0", and it works just fine connecting with the router.How do I fix this? I'm an Ubuntu noob so I'm not really sure what to do here.
The network card is an Intel 82547EI Gigabit LAN controller, and Intel's website offered a driver available for my kernel version of Linux. However I was typing everything it told me to do in terminal, (which half the time I have no clue what I'm typing actually means), but I ended up getting some errors towards the end of the install process. I'm not sure if I messed something up or the driver just isn't going to work.
I'm hoping there is an easier fix for this, I've been searching the net all night trying to find someone with a similar problem and I haven't found any. I think I have another ethernet card which I might pop in and see if that works....but I figure I'll most likely run into the same problem because I know for sure the motherboards network card works - has on Windows, I just can't get it working in Ubuntu.
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Feb 2, 2011
I have searched and have not found anything specific to my issue. I am currently using NDISWrapper to load the bcmwl15 driver and when it's active it works beautifully.Problem is sometimes at boot, the card doesn't "turn on" and I don't know how else to describe it. The OS does not even detect that the hardware is present. I have disabled wireless hotkey in BIOS. The only way to make the wireless card "active" is to reboot with the wiredconnection to the router. After doing that the wireless card "wakes up" and works awesome.Is there anything I can do to make sure the driver load at boot?mes I get the error that NDISWrapper is not modprobbed when I go to network configuration and if I wish to do i now? I don't know if that has anything to do with the boot sequence. Using the <modprobe ndiswrapper> command as root does nothing permanant
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