Ubuntu Networking :: Use 3G USB Modem Dongle And Ethernet Network At Same Time
Feb 24, 2010
I currently have a computer sitting underneath a router/switch on a Local Area Network that I want to connect to the Internet using a 3G USB dongle modem. If I am connected to the ethernet and then enable the modem connection, only the ethernet LAN side works. If I enable the modem and then enable a (disabled) ethernet connection, only the ethernet LAN side works. If I keep the ethernet disabled and connect using the modem, I can get out onto the Internet, but obviously not the LAN. I need to be able to do both.
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Jul 22, 2010
I have a wireless Internet modem (USB) and a LAN Ethernet connection. I can only pick 1 of them to connect to (by disconnecting the other). How can I connect to both at the same time?
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Apr 15, 2010
my wifi and dongle usb modem both are not working doesn't work on dell laptop inspiron 1520 withn opensuse 11.2.
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May 29, 2010
I use Banglalion WiMax usb dongle modem. I like to use it in ubuntu os. When I connect it to my Desktop PC's usb port, it respond nothing.
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Oct 2, 2010
I have a usb 4G dongle which has stated no linux support in australia from vividwireless.
The flip flop part does not exist for me in the sense I can not see the cd autorun files so I downloaded the files off the net and put them in my wine directory
I attempted to run the exe file thru wine but whether I try graphical or command line....it defaults to a graphical dialog box....I click on English...installer then shows the dialog box for the welcome screen ...then I click on next and the screen shows for a nanosecond the user agreement but exits with no log etc.
2) so in linux here is the info
Code:
Bus 001 Device 020: ID 12d1:380b Huawei Technologies Co., Ltd. but when I press lsusb again....that info disappears....hmmm
ok so
Code:
Oct 3 06:42:35 sid rsyslogd: [origin software="rsyslogd" swVersion="4.6.4" x-pid="1435" x-info="http://www.rsyslog.com"] rsyslogd was HUPed, type 'lightweight'.
Oct 3 07:00:15 sid kernel: usb 1-8: new high speed USB device using ehci_hcd and address 3
[Code]....
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Dec 20, 2010
not *buntu related but what is the difference between an adsl router and an ethernet modem?
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May 4, 2011
I am using a cable modem wired to my PC via ethernet. My ISP is Road Runner, through Time Warner Cable.
I entered my IP address, Netmask, and DNS Servers into the network, not using DHCP. This was how I was able to achieve a network connection.
I am connected to the modem, but I cannot get internet.
Here are my stats:
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Mar 7, 2010
I have a workstation with the two ethernet ports (eth0, eth1), the problem is that i cannot run with both ports up and running. I can run with either one of them, but not both.
Below is the contents of my /etc/network/interfaces file:
Code:
Running on 64 bit Ubuntu 9.10 Desktop
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Jan 20, 2009
I have run Fedora 9 and 10 on my Dell Inspiron 640m for about 6 months now and generally experience very few issues with it. Specifically I've been running Fedora 10 KDE 64bit since it was launched. Up until I had to reload it a couple of weeks ago my Vodafone Huawei E172 3G dongle worked perfectly with Network Manager. Since the reload the dongle is detected by the OS (lsusb lists it correctly, etc) but nothing I do will make it appear in Network Manager.
I've tried manually configuring a GSM connection then plugging it in, but no joy. I've also tried using it in my Acer Aspire One which runs Fedora 10 XFCE and it work, but when I try it in another Dell Laptop running Fedora 10 KDE 64 bit it doesn't. I'm assuming that a recent update must have caused some issue as it has definitely worked in both Dell laptops in the past. As mentioned I've reloaded recently but the other laptop hasn't been.
I'm unsure where to go from here. I haven't been able to get Vodafone's beta drivers working under F10 (although I did under F9) and can't find any posts on this issue. The version of Network Manager that I'm running is NetworkManager-0.7.0-1.git20090102.fc10.src.rpm, which was released shortly before I reloaded. Chances are I just didn't try my dongle between the update coming out and the reload, so didn't notice the problem before hand.
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Jul 13, 2011
I am using Ubuntu 11.04 and a Huawei USB modem to connect to internet. Most of the time when I start computer it is not detected my system. Then I use to reboot and then it gets detected automatically. That means its drivers are now loaded. But I don't know why drivers are not loaded when I start first time.
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Jun 28, 2011
I have a Acer Aspire running dual boot Ubuntu 9.10 and Vista. Although it has an Atheros wireless card (AR5001 according to linux, AR5007 according to Vista) until recently I didn't have any apparent problems with it.I installed a ZTE MF112 Mobile Broadband Dongle. Now I am experiencing great difficulty in communicating with my wireless router (with both LAN and WAN traffic). Connecting to the network in the first place appears to happen quite smoothly and my computer obtains a DHCP IP address. However the ping response times are measurable in seconds rather than the milliseconds I would expect, and any traffic across the network crawls, or just times out and fails.
I do not believe it is the router at fault as two laptops, both also with Ubuntu, can connect to it fine and swapping it out for another router does not fix the problem either. Also there is no problem connecting from Vista.I suspect that installing the dongle has altered something which has made the bugs in the wireless card/drivers apparent and that's where I need some help.
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Oct 5, 2010
I have a system running a very basic LTS install (10.04). Ubuntu has been setup with very little additional packages. No GUI. Once it's booted to a prompt for the first time I add the following packages,
cups cupsys ssh pi memtester nfs-common
aptitude safe-upgrade
At this time I don't have additional information on exactly what packages are installed. I did not perform the installs myself. I will update this thread when I get more details from my IT counterpart on how the system was setup.
This is used for a headless(no monitor, no keyboard) system running some custom applications.
Here are two problems.
1. If I plug into an ethernet network after I boot, the network never connects. I need to reboot with the network connected in order to get an IP. What is the service to "auto connect" to a network?
2. I have a network printer configured on lpd called myprinter. If I am connected to the network when I boot, I can print to this printer just fine using:
Code:
However, If I boot disconnected from the network and print to myprinter, the jobs obviously cannot print. They get spooled. Using 'lpstat -t' I can see that the spooled print jobs are assigned a job number and that myprinter is trying to connect. I shutdown, reconnect my ethernet network and boot up. All my printer configuration is blown away.
/etc/cups/printers.conf has been wiped out to look like this:
Code:
My 'good' printer configuration is copied to printers.conf.O
To recover from this, I need to stop cups, copy printers.conf.O to printers.conf, restart cups, and re-setup my network printer.
So, What causes my printers to get wiped out? I've repeated this on 4 systems with the same setup.
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May 2, 2015
I'm using a wired ethernet dongle due to my machine not having an ethernet port, however it sometimes drop connection, how can I diagnose whether if the dongle is faulty or my system is having trouble maintaining a connection.
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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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Jul 29, 2011
I am using RHEL6 on a server with 3 interfaces.
eth0 is connecting via a Cisco switch to the outer world and eth1 and eth2 to internal networks.
eth1 and eth2 are working without problems all the time, however I have the following incident with eth0: although it is RUNNING, and after it works for some time (like some hours), it then becomes incapable of sending/receiving traffic. Here are more details, after the interface exits the RUNNING state:
[root@mgt ~]# ifconfig eth0
eth0 Link encap:Ethernet HWaddr E4:1F:13:6C:87:74
inet addr:9.162.91.26 Bcast:9.162.91.255 Mask:255.255.255.0
inet6 addr: fe80::e61f:13ff:fe6c:8774/64 Scope:Link
UP BROADCAST MULTICAST MTU:1500 Metric:1
[Code]....
I am wondering whether there this is because there is not traffic for some time and so the interface goes to idle. Is there any parameter I can tweak in RHEL6 to force the interface to remain RUNNING even in the absence of traffic (although I would be expecting that some 802.1 packets would be periodically flowing from the switch to the interface)?
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Dec 12, 2010
I have 2 LAN ports. one from the motherboard (on board) and the other from a lan card i bought a few days back. one is use for browsing the net, the other for a media player.
problem is i cant connect to both the eth0 and eth1 at the same time. i have to disconnect one of them to connect to the other. and this really gets irritating as it doesnt always work as flawlessly as it should. what am i doing wrong?
Output of "ifconfig":
Quote:
I'm on ubuntu desktop 10.10 64 bit.
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Apr 1, 2011
I have 2 pcs at home. I dont have a switch so I can connect only one PC at a time to my adsl router/modem for internet access. In the past I had successfully connected the two PCs (NIC to NIC) to each other using the same ethernet cable which was supplied with my dlink adsl modem.
Recently the motherboard of on of my PC went bad so I replaced it with a new one. The problem is when I connect the two using the same Ethernet cable they won't connect. The lights on the Ethernet port won't light up. I can still connect both of them to the adsl router (NIC to Router) (one at a time).
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Mar 14, 2011
Im new to this Cent OS as well as Unix based Operating Systems. Please help me with the below requirement.My Company is a Serach based data collector from different websites like Google, Yahoo & many more..Collecting the data from the search engines is a issue for right now.. As many search engines are blocking us to search and retrive the date after some time.. Taking Google as example : Google Blocks my IP after every 30 mins of retriving.. Application is a Windows based & using Windows 2003 as the Server.. Would like to give a Dynamic IP to the Windows Server via 1st Ethernet Card & enable the 2nd Ethernet for the Internet..Eg : eth 0 = 192.168.1.1eth 1 = x.x.x.x (Public IP)I have check with few of my friends who told me to get Linux or Cent OS installed to do a interface disable after given time & enable a secondary device or virtual interface the next couple of seconds... Like eg : eth 1 = x.x.x.1 eth 2 = x.x.x.2 eth 3 = x.x.x.3 so on.. Would like the eth 1 to be down after 60 mins & eth 2 o be up & again after 60 mins of up time eth 2 down & eth 3 up.
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Oct 20, 2010
In the right upper corner of your screen,you can see if you have a network connection or not.Most of the time I do not have one according to Networkmanager (?).So I have to enable my wired connection manually.I already tried a lot to change my settings so I would have a network connection at boot,but it doesn't seem to work....Firefox is in Offline modus when I logon..
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Aug 6, 2009
I want to configure my ADSL but I don't know what should I do. Can you explain me How can I configure it?(I use fc10, ethernet cable <Asus Am608 ADSL modem)
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Feb 10, 2011
Pl can anyone guide me to connect centos 5.5 using ethernet port to ADSL Broadband modem which is configured in PPPoe mode?
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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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May 3, 2010
I'm try to create a mobile broadband connection using my Huawei E 1550 medem. but in Network manager there is not way to select my modem in the first step ( device selection step ) the drop down menu is locked. what to do ? how to configure my modem with ubuntu ?
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Mar 30, 2011
I installed Ubuntu 10.04. I was having many issues getting the modem to work. I have worked most of them out and was able to connect using KPPP. My issue now is that I can not find a version of Network Manager that allows me to configure to use the Modem connection. There is simply no modem tab in Network manager. So my modem is connected to the ISP but I can't configure the connection.
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May 4, 2011
I have some CDMA USB modem, it's work perfectly using wvdial, but why my modem
not detected by network manager. I want using gwibber and empathy IM, and i read that's apps using network manager (ex:if i connect using wvdial, i can't update status using gwibber). How to make network manager recognize my USB modem?PS:
Code:
$lsusb
Bus 003 Device 004: ID 10c4:ea60 Cygnal Integrated Products, Inc. CP210x Composite Device
[code]...
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Mar 2, 2010
Problem:I got a new Acer Aspire 8935G notebook, installed Ubuntu 9.10 on it and everything is fine, except the fact, that it wont detect any network interfaces (or how to call it So there are no ethernet or wlan connections available in the network-manager..
lspci gives me following lines:
joe@IGNAZ ~ $ lspci
00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev
[code]...
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Feb 1, 2010
My hardware has two interfaces: a) ethernet - eth0 b) WirelessLAN - eth1.After power on, eth1 gets associated to WirelessLAN access point.
The ethernet interface of Hadrware and test PC is directly connected to Wireless LAN access point through ethernet cable. Hardware is associated to Wireless LAN access point through eth1 interface.Now, when ethernet cable is connected to hardware, I can ping 192.168.254.254 from test PC.When I removed ethernet cable from hardware, I cannot ping 192.168.254.253 from test PC.I think access point should forward the incoming packet from test pc to hardware's eth1 interface wirelessely. Where am I wrong? Is it related to Kernel's routing table? If yes, how to detect removal of ethernet cable from hardware and change routing table dynmically?
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Mar 4, 2011
Just installed Scientific Linux 6. Does anyone know how to get it to connect to wired ethernet network?
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Dec 25, 2010
One question that weight a lot of points was about ethernet... the professor asked why ethernet is used only in local area network? resuming i wrote that ethernet is used only in LAN because it is shared and so for big network there could be a lot problem in using the shared channel.. for istance using protocol such as CSMA/CD, if a big network has a lot of hosts, they could wait a long time before sending...is it right or am I wrong?
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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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