Ubuntu Networking :: Using Both Wireless And Cable?
May 3, 2010
I normally use a cable to connect to the Internet, but I also use the wireless network regularly. So I'd like Ubuntu to automatically use the wired connection except when there isn't any.
I also have the unlock keyring problem (because of auto login and wireless Internet), does anyone know a solution to that problem? (It's quite disturbing to get that window each time you start the pc even if you aren't going to use wireless Internet)
system:
Ubuntu 10.04, auto login, Intel Core 2 Quad Mobile Q9000, ATI HD 4670, 4 GB RAM, Broadcom NetLink BCM5784M Gigabit Ethernet PCIe, Intel Wireless WiFi Link 5100
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Apr 7, 2010
I have a wireless connection with static ip 192.168.10.150 to connect to Internet through a modem / router ADSL ip Lan 192.168.10.1. I connect with no problems. I have a wired network in the office 172.16.17.0/24 to work with the servers. the router is 172.16.17.1, my connection eth0 with static ip 172.16.17.150 work, but Internet by Internet nothing. If i disconnect the cable i have Internet from wireless. ?? What i have to do to ,to received internet by wireless and be connected ate same time to my wired network by eth0 too.
all routers have DHCP active.
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Apr 15, 2010
I recently installed the vt6656 wireless pci card that came with my zotac motherboard. I can associate with my ap and get an ip address successfully. When I disconnect my ethernet cable, however, my wireless interface stops responding (can't ping it). The box itself is in a place where I don't have a monitor connected to it so I cant see anything since my ssh session gets killed as soon as I disconnect the ethernet cable.
What would be the reason why the ehternet cable being unplugged, disconnects my wifi card as well? Does something get triggered? I did some testing with iptables, blocking the 8080 traffic to the wired interface, and noticed that the 8080 traffic also gets blocked to the wifi ip. I'm afraid that this never worked properly to begin with.
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Mar 25, 2010
I have 2 network adapter, 1 wireless and 1 wired. Both are connected to different network. Whenever I plugin the cable, wireless stop working. I need to get both working simultaneously. Do I need to do any settings to make both work?
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Feb 20, 2010
I'm a new user of Ubuntu, so i'm not that familiar with this OS. My wireless network is detected but when I'm entering my 128 bits WEP key, it doesn't connect at all. I have no clue where to start troubleshooting.
Here's some of my specs if that's of any help:
Computer is a Sony Vaio laptop model VGN-SZ370P
My wireless card is from Intel Corporation 82801G (ICH7 Family) USB UHCI Controller
The ethernet cable connection used to work before, but I fooled around with some commands and now seems to be disabled...
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Aug 6, 2010
i'm having problems connecting to the internet unless i manually enter the IP info.
automatic DHCP does not work. I'm on a dual boot machine vista/ubuntu 10.04 LTS connecting to the internet through a lynksys wireless g router and a cable modem.
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Dec 10, 2010
Using ubuntu 10.10 (pinguy OS) i connected an ethernet cable from my girl's macbook pro to her lenovo ideapad s10-3t to transfer some DS9 episodes onto it. new enough to linux to have not been able to figure out how to access the files on the mac, so i disconnected the ethernet, and the wireless hasn't worked since. tried everything i know, and googling for a while (as well as searching again on this forum) to no avail.
Just before linking the 2 computers via ethernet, the wireless worked fine on the ideapad, always had; but not so after the ethernet connection that did nothing other than apparently kill the wireless. an "lshw -C network" command tells me i have a BCM4313 wireless card, and *-network UNCLAIMED. also, if i launch "install additional drivers", i see that the proprietary driver is not active.
How could merely plugging in an ethernet cable that happened to be conncected to a MBP running OSX.6 do that? and will that happen again? i thought linux was supposed to play real nice with other OS's, so why did a simple file transfer kill my wireless connectivity? i have no access to internet via ethernet cable, so i cannot just download the driver i need now. shouldn't it still be in the computer still? somewhere? is there a simple solution to this, or has the wireless driver been wiped out by plugging in the ethernet? is this a bug that should be reported?
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Apr 7, 2010
Can Cat5e RJ45 connector crimper be used for Cat 6 connector because I heard cat 6 connector is different from cat 5e connector and also same question for cable tester can cat5e cable tester be used for cat 6 cable?
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Apr 12, 2011
Wireless does not turn on until nic cable is plugged in. Soon as I plug in a nic cable the wireless light on laptop comes on.
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Oct 12, 2010
how I could file share, or make the whole Hard Drive (HDD) accessible to another computer. The two other computers I have are a Toshiba Laptop with Ethernet and USB, and a iMac Intel with Firewire, USB, and Ethernet. Putting these to use along with:
Three Ethernet Cables
Two Printer Peripheral USB Cables
The Two Computers
A 2GB Flash Drive
That is all I can think of right now. I do not want to use CDs. In a way, I would like to do a network boot. So, how do I get the whole HDD visible to the others computers (either/both) and be able to write to it? I want to put Xubuntu on it, and earse the rest of the Hard Drive. The computers getting this are the iMac G3s and the eMac G4. The eMac has 256MB RAM, 40GB HDD, and a 700MHz processor. Two iMacs have 128MB RAM, 40GB HDD, and a 600MHz Processor. The other iMac is the same as the rest but has a 500MHz processor.
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Apr 23, 2010
I have installed Mint 8 on my HP Presario lap top. When booted up using XP I can connect to the internet wirelessly with no problem. But, when I boot up with Mint 8 I receive a msg that there is no connection to the internet. I then tried by hooking up to the router with a cable and it still shows "not connected to the internet" msg. I tried rebooting while hooked up with the cable and same result.
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Jul 9, 2011
I have a debian-powered NAS (Buffalo LinkStation) and I want to configure the following behaviour: When ethernet (eth0) is plugged in, connect and get a static ip address (ie. 192.168.0.11) When a wireless usb-adapter (wlan0) is plugged in, connect to a wireless router (ie. "Ankkanet") get another static ip address (192.168.0.12)
My /etc/network/interfaces :
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
[code]....
what could be causing wireless to disconnect when ethernet cable is unplugged?
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Mar 2, 2011
Just today I installed opensuse 11.3 on my Compaq CQ61. Even though I am able to connect to networks (both with an ethernet cable and wireless) I don't have internet access. I have used opensuse for a very brief period in the past and I had no such problem.
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Feb 14, 2010
I just got connected to Charter Cable Internet service a few days ago and I'm having a weird problem with my home network. Prior to this my network worked fine. On my network I have a desktop running Ubuntu 9.10/64 and Virtualbox with WinXP installed, an HTPC with Ubuntu 9.10/32 installed and a laptop dual booted with Ubuntu 9.10/32 and WinXP. The desktop and HTPC are hard wired to a wireless router and the laptop is wireless. The cable modem is hard wired to the router. I have samba installed and UFW is disabled. The problem is: with the cable modem turned off or on standby, all machines connect to each other and can transfer files, etc just fine but when I activate the cable modem all of the machines can connect to the Internet but the machines running Ubuntu can't connect to each other on the home network. If I boot the laptop into Windows, it can connect to the Linux machines just fine but if I boot it into Linux, it won't connect to the Linux machines but it can connect to the Internet and as far as the desktop, Ubuntu won't connect to the network but Windows running in the Virtualbox with bridged networking can connect to all of the machines.
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Jan 26, 2011
I want to setup my Dell 1525 laptops to download DVR Recordings and Record Live TV with my Scientific Atlanta Explorer 8300HD Cable DVR.I purchased a USB "A to A" cable, but it states this cable cannot be used to connect PC to PC/Cable Box?Can I connect to the DVR directly and with what kind of cable (USB, S-Video, HDMI)?Do I have to use some kind of "Video Capture Box"?Can anyone point me in the right direction?
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Apr 26, 2010
Linux box could act as a router? I have one machine running ubuntu, another running windows 7, a cable modem and a switch. Is it posible to share the connection between both computers by making the linux box a "router"?
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May 1, 2010
I'm having trouble connecting to the internet... I'm using Ubuntu 10.04 on a PC with Windows XP installed. When I click the little network icon at the top there's an option called "auto eth1" but when I click it, it just says
"Wired Connection: Disconnected - you are now offline."
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Jun 23, 2010
I am using ububntu 9.10,and have a cable modem internet connection. All I have is an ethernet cable given to me,and when plugged in a windows machine and fire a browser am redirected to default login page where i can login, but when i plug it into my linux machine,i cant get the same done. In network connections it doesnt shows my autoeth0, i have deleted my existing dsl settings(not autoeth0),made a new wired network,i doubt what should i put into MAC addrs field(i have put my machines mac given by lshw -c network.) What should I put in DHCP client id? Anyways when i click on network connections it says under my wired connections-device not configured properly.
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Dec 21, 2010
How can connect two PCs that both of them have ubuntu by cross cable?
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Apr 22, 2011
I thought id give 11.04 a bash and i cant connect to internet via wifi i have a broadcom network adapter built into my hp530 laptop , and my network port is broken so cant use cable connection , so i thought id go back to 10.04 , guess wat i need to d/l the drivers again ... and again i have the same problem ? i have another laptop running win 7 , anyone know how i can get the drivers or what i can do ... ? its a broadcom BCM4311 802.11b/g
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Nov 27, 2010
I have a 2-floor house, with a single ethernet cable from the ground floor to the 1st. Downstair there is my ADSL modem, which is connected to the router upstair through this one cable. Now, I would like to have some more ethernet ports on the ground floor, but there's no room left to run another cable between the floors, so here's the big question: can I run both the modem-router connection and my regular LAN (which are on different subnets) through that one cable, with a switch at both ends?
To make it a little more clear, here is my present configuration
Code:
DOWNSTAIR UPSTAIR
ADSL Modem ------- Router --- Clients
Here is what i would like to do:
Code:
DOWNSTAIR UPSTAIR
ADSL Modem ---- Switch ------ Switch ----(WAN Port) Router --- Clients
Clients ---- ----(LAN Port)
Would it work?
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Dec 23, 2009
I am working on h/w device having linux kernel version 2.6.27 with busybox installed. I observed below problems while working on jffs2 image is flashed on the board.
1)When the board is powered-up with n/w cable is connected, it doesn't get IP address automatically, I have to use "/etc/init.d/networking restart" in init script(/etc/init.d/rcS) to get the IP address.(I am using dynamic addressing)
2)When the board is powered-up with n/w cable is unplugged and plugging-in once the device is started, I get "link up" message from the system, but still the IP is missing in eth0 interface.
I have udhcpc(v1.14.1) installed. Giving below commands manually, get the IP for device:
Code:
ifdown eth0
/etc/init.d/networking restart
but It is not pretty solution for me !
What I want is, the device should get IP address automatically once the n/w cable is plugged-in. (as we get in desktop m/c's). Am I missing some scripts or configuration parameters?
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Jul 13, 2011
I recently installed ubuntu on my mom's computer but I can't get the mouse to move trough the touch pad and I suspect the USB is not working either, because I can't get anything to work trough the USB, and the Internet is not working trough the cable, and I think wireless as well. Her computer is an old acer aspire 3000
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Jan 10, 2010
I've got a Laptop with wireless broadband connection which needs to be connected to a desktop machine so that the internet connection could be shared. Both has got Ubuntu 9.1. I don't have a router or a switch. I just need direct connection with a cross over cable.
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Sep 21, 2010
I am trying to run a cable from my wireless router over a 75ft cat6 cable to my bedroom. I don't get any connection on my end and I don't have any other ideas. I did setup a m0n0wall box just to try. I got the network led on my server to light up in my room but nothing more than that. Lastly, I tried adding a 5 port switch in my room and then connecting that to my server and nada.
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Oct 13, 2010
I've been reading too much and understanding too little. What I have: Lucid laptop & desktop. Both have ethernet > hub > internet. What I want: connect them directly by the serial ports so the laptop can access the desktop's drives, and the desktop can be retired from the internet. I've got an old DB-25 null-modem, last used for multiplayer Doom. The laptop's dock has DB-9, so the connections is desktop > null-modem > Belkin DB-25 - DB-9 cable > laptop.
I had hoped this post would get me somewhere:[URL].. No such luck. When I ping 'grin.local', the connection is through the internet. If I disconnect the hub, i cannot ping.
Dunno if there's something more I should do to enable serial connection in Lucid, or if my null-modem is no longer good. I'm also rather curious how "grin.local" manages a connection through my ISP's system. These are DHCP. Shouldn't that have required the full numerical IP?
(It's nothing to do with the hub. Checked that by connecting a third box to the hub. My ISP only hands out two IP. I couldn't ping the third box.)
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Nov 7, 2010
I'm trying to get my Ubunutu and OSX systems to connected via a cat5 cable to transfer some large files around very quickly. Now i know normally this would require a crossover cable as it's a direct connection but the macbook/OSX can handle changing the wires round to make it work like a crossover cable as I've done it before. However the macbook creates a self-assigned IP or as I've tried I've set it to :
IP:10.10.0.1
Subnet: 255.255.255.0
Then I've setup the Ubuntu system both through the System>Admin>Network panel as:
IP:10.10.0.2
Subnet: 255.255.255.0
and my /etc/network/interfaces file is the same;
#lines added to get static crossover cable working
auto lo
iface eth0 inet static
address 10.10.0.2
netmask 255.255.255.0
Yet when I run ifconfig in the terminal eth0 isn't present
Code:
htpc:~$ ifconfig
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:912 errors:0 dropped:0 overruns:0 frame:0
TX packets:912 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:371613 (371.6 KB) TX bytes:371613 (371.6 KB)
ra0 Link encap:Ethernet HWaddr 70:f1:a1:e6:b1:97
inet addr:192.168.0.42 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::72f1:a1ff:fee6:b197/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:120744 errors:1 dropped:0 overruns:0 frame:0
TX packets:87499 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:171716865 (171.7 MB) TX bytes:7815802 (7.8 MB)
Interrupt:19
htpc:~$ ifconfig eth0
eth0 Link encap:Ethernet HWaddr 90:fb:a6:e4:c0:b0
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)
Interrupt:23 Base address:0xe000
Also even when I try and ping 10.10.0.2 either from my OS X or the actually Ubunutu machine all I get is:
Code:
ping 10.10.0.1
PING 10.10.0.1 (10.10.0.1): 56 data bytes
Request timeout for icmp_seq 0
Request timeout for icmp_seq 1
Request timeout for icmp_seq 2
Request timeout for icmp_seq 3
Yet the Ubunutu machine is also connected to Wifi and when I ping it's own address I get the expected response. To me it just seems like eth0 isn't being recognised somwhere or it's not turned on yet I can't seem to find any toggles or settings for it anywhere. Further more if I check >System>Admin>Network Tools the IP for eth0 is 0.0.0.0. What could be going wrong and why no IP set correctly?
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Jul 13, 2011
I am using Ubuntu Server version 10.4, and am trying to connect to the internet via an ethernet cable. This may and probably is incredibly simple, however, I could not find anything that pertains to it.
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Jul 24, 2010
Allright, I bought a new dedicated box about two months ago. For most of the time, I have had major intermittent latency and downtime.Pings and traceroutes would always work, <70ms. However, all daemons would be inaccessible for periods of time spanning from 5 minutes to hours, at which point I would have the box rebooted and it would work again.After having hardware tests done numerous times, they kept saying it was software related. No logs showed problems.Finally, tonight a tech found that the network cable was frayed or something of that nature. "Noticed that your connection to the switch was exposed and replaced the cable"Would that create symptoms I've described above?
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May 2, 2010
I have a desktop running Ubuntu 8.04. I installed 10.04 on my laptop. When I mount my desktop music folder on my laptop and transfer files, they now only go at 100-200 KB/s. When I had 9.10 installed, they transferred at 1-2 MB/s.
This is the command I use to mount the directory:
sshfs matt@169.254.6.233:/home/matt/Music/ /home/matt/Music/desktop/
Is there any way I can speed it up to get it back to max speed?
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