Ubuntu Networking :: Enabling Wifi In Laptop For Other Devices When Connected To Wired Network
Jul 14, 2010
This may be more suited for the networking forums, but I figured Community Cafe would be well rounded enough for someone to tell me if this is even possible (with minimal configuration that is).There are a few places I travel where I only have a wired connection to the Internet (no wifi), but when this happens is there a simple way to create an adhoc network so wireless devices can route through my computer and to the network? Reason I'm asking is I'm thinking of getting an iPad or iPod Touch which have wireless connections, but in the cases where my laptop is using a wired ethernet connection and the wireless card isn't used, I'd like to create an adhoc wireless network that'll let such wireless devices work.
I have an Ubuntu laptop connected by wifi to a Cisco router and a desktopUbuntu PC conneted by wire to the same router. I would like, if it's possible to connect them without using the Internet (I mean what I want it's not just communicate between them using SSH over the Internet, for instance, but also communicate without connecting to the Internet). My DSL connection it's 4 Mb/s while my router can work up to 100 Mb/s so I would like to take advantage of these 100 Mb/s to transfer files between the two computers instead of using 4 MB/s
I was wondering if there's any way for a laptop to be both simultaneously connected to a wireless network, while at the same time acting as an ad-hoc network with local access to serve as a wifi connection for my mobile device, which would be ssh-ing into the laptop and using local resources.
Background infoMy laptop (MySN MG6.c) is dual-booted with Windows 7 and Ubuntu 9.10, and connected to the internet through a router (Digitus DN-11004-O), which is set-up to use DHCP. The internet connection works fine under Windows, and my previous laptop, which also ran Ubuntu 9.10, had no problems connecting to the internet through that router.The network adapter is an Atheros AR8131 PCI-E (also detected as Attansic under Ubuntu)stem infoResults from running various diagnostics (I have removed the output that relate to the wireless connection, as I don't use it):
Code: $ uname -a Linux valyria 2.6.31-14-generic-pae #48-Ubuntu SMP Fri Oct 16 15:22:42 UTC 2009 i686
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.
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?
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?
When I connect my Debian PC to my WiFi router my PC doesn't get internet if other devices are connected to it .
When i disconnect those devices and connect my Debian PC only then my PC connects to internet but other devices connected to it later do not get inernet connection.
When I connect my Debian PC using LAN Cable to the same router all devices work fine.
I'm having trouble getting my wifi devices to work on my 128bit WEP network. I have a new Thinkpad T400, with an internal Intel PRO/Wireless 5100 AGN. I also have some cardbus cards: a Lucent ORiNOCO Gold, a Linksys Wireless-G, and a TRENDnet TEW-421PC. I have them set up as interfaces eth2, eth1, and eth3. (The TRENDnet isn't recognised as a network card at all, so no interface for it.) I have installed the latest firmware for the Linksys card.
The /etc/sysconfig/network-scripts/ifcfg-* files are virtually identical for all of them, differing only in the HWADDR and DEVICE lines. So here's the behaviour:
1. The Lucent card comes up just fine. 2. The internal 5100AGN and the Linksys cards won't come up, and watching with iwconfig shows that they're either associated with my AP OR they've got an encryption key set -- but not both. 3. When trying to bring up the 5100AGN, I get the following messages:
iwlagn: index 0 not used in uCode key table iwlagn: index 3 not used in uCode key table
/var/log/messages shows DHCPDISCOVER requests being sent, but they're bound to fail since the association with the AP with WEP isn't being completed. And yes, the ifcfg-* files really *are* identical except for the DEVICE and HWADDR lines. The /etc/udev/rules.d/70-persistent-net.rules file correctly maps the interfaces to the MAC addresses. So why does my antique ORiNOCO card work and thew newer ones fail? How can I track down what's being done wrong/not being done?
I'm running Squeeze and I'm looking 3 days now for a solution in some weird problem. The NetworkManager Applet shows that there isn't connection although I am connected. The icon has this small "x" and when mouseover it says "No network conncection". Moreover when left clicking it, it says
"Wired Network Device not managed"
While I was looking for the solution a came across this post by an Ubuntu developer who says:network-manager-applet displays the connectivity state of network-manager's managed interfaces not every interface. So the title "network manager says disconnected but is connected and working" is actually misleading. The interface is connected and working but not from network-manager's point of view since it is not managing the interface. Additionally, in Lucid now network-manager applet displays nothing now for non-managed interfaces so is less misleading. You can check to see whether or not an interface is managed by network-manager by using the command line too nm-tool. You'll see "State: unmanaged" for unmanaged interfaces.
My sons computer /w 11.4 x64 installed a week ago, was working fine till he wanted to play with Blender.So he installed it and it would not run because im lazy and did not instruct him on installing NVidia drivers for his vid card. He added the repo and I had him run update instead of just software management (my bad) anyhow ran the update and there were updates with driver install, rebooted Blender works now.But the nic card sates its not connected in yast no ip in root terminal /w ifconfig info there for nic mac addy and such, tried reboots and reconfig in yast no joy. Dual boot into his windblows and the nic work perfect so not hardware issue.
I have 2 connections, wlan and wired, and I'd want to have a few websites (in my browser) to connect through the wireless connection while other go through the wired rj45 connection. s it possible? (without unplugging the rj45 cable...)
I just got a new power supply in my old desktop, and installed ubuntu on it. I've got three NICs in there (for a later project), and when I connect my cable modem to any one of the NICs, then little connection triangle-spinny-thing in the upper-right tries to connect. But it never gets all the way connected.
Just wondering if there is a way to view all connected devices on my network?? Something similar to view network map in vista?? I know the places network but that only shows me my shares and I want to be able to see everything that is on there ie printers, routers, VOIP, other non-shared computers, etc...
I used to have no problems with the wifi on my Acer One netbook. After a friend played with the network configurations, the wifi is disabled.
Code: ariel@segal:~$ sudo -i [sudo] password for ariel: root@segal:~# iwconfig lo no wireless extensions. eth0 no wireless extensions. wlan0 IEEE 802.11bg ESSID:off/any Mode: Managed Access Point: Not-Associated Tx-Power=0 dBm Retry long limit:7 RTS thr:off Fragment thr:off Encryption key: off Power Management: off
To use my home broadband, I am connected to a wireless router. How can I scan for other devices connected to that router? I am using Ubuntu 10.10.Is there both a GUI and CLI method?The IP of my router is URL... Please rename this thread title from 'How can I scan for other devices connected to that router?' to 'How can I scan for other devices connected to my router?
trying to bring back to useful ife an old laptop: an Acer 1360.
I have installed kmod-ndiswrapper to assist me. The laptop has one of these:
Quote:
00:0a.0 Ethernet controller: Linksys, A Division of Cisco Systems [AirConn] INPROCOMM IPN 2220 Wireless LAN Adapter (rev 01)
I have grabbed the Windows drivers for this card and installed:
Quote:
[graham@old-acer ~]$ ndiswrapper -l WARNING: All config files need .conf: /etc/modprobe.d/ndiswrapper, it will be ignored in a future release. neti2220 : driver installed device (17FE:2220) present
lsmod shows:
Quote:
ndiswrapper 158060 0
Looking good to me - (is that conf file required an issue?) but Network Manager doesn't recognise that I have any wlan running at all. The Wifi button on the laptop is on but 'red' and not 'green' for up and running.
Um. Next steps? I suppose I could buy a compatible wifi card and slap it in?
i m connected it with wired bb airtel connection but its not working i have one more operating system windows 7 thats working nicely with that connection.
Loaded Debian Jessie (x64) and when adding printers, can see my printer which attached ok to my RaspberryPi and can print thru it, but can not attach to my Jessie box. If it adds, it can't see it or reports printer is busy, tried every config I could find on the web. Previous versions of Debian I loaded the canon print driver separately and loaded the cnij(?) filter. Do I still have to do that? Is there a trick to getting a network canon to work?
I dug up an old pentium 3 computer to play with. I have it connected to my laptop with an ethernet cable. Now, how do I access the files, install new OS, etc, etc? If it helps any, I think it runs windows 2000 and I'm on opensuse 11.3.
WiFi on this laptop worked fine for a few months then went out; after a reinstall of ubuntu (since 9.xx had come out since then anyway) the wireless still refused to even see networks, let alone connect to them; under Wireless Networks in the NM, I just see a greyed out 'disconnected'. This got me to thinking that it may have just been a hardware issue, but I find that hard to believe. Anyway, here's the pertinent information:
Started off with an lshw command just to see if a network adapter is even listed as being connected: `lshw`
As an addendum : I found this driver project but they claim to require a 2.6.8+ kernel; a quick `uname -r` shows that mine is 2.6.31, and an `apt-cache search linux-image` reveals that to be the highest available from repos; do Debian/Ubuntu distros not use more recent kernels or is this an Ubuntu-specific kernel naming scheme? If so, to what would it be comparable? I'm hesitant to try to install this and change my firmware if it's likely I'll be borking something.
I just installed Ubuntu 10.10 tonight on my Acer Aspire One D250 and have no internet at all. I know both the wireless and wired internet work, as I am dual booting WinXP as well.
I've been running ubuntu for about 6 months, so i'm still abit of a newbie at linux but heres what im having issues with:I'm having troubles connecting to the internet on ubuntu, i have no problems connecting on xubuntu on the same machine. I can connect to my network but i cant access the internet on firefox or snaptic or any of that, but the weird thing is i can successfully ping address' in the terminal. I can also connect to my router config page in firefox using 192.168.0.1.
My internet worked perfectly about a month ago on this ubuntu install, so i cant figure out what i did to make it stop working. I think it may have something to do with the/etc/resolv.conf file because it only exists as /etc/resolv.conf.tmp and when i run "sudo dhclient wlan0" (or eth0) it says:
ubuntu@ubuntu:~$ sudo dhclient wlan0 Internet Systems Consortium DHCP Client V3.1.2 Copyright 2004-2008 Internet Systems Consortium.
I've been using my upstairs computer with no problems recently up until this evening, when I rebooted it did an automatic scan of my disks, so I left it to it's thing and when I came back ubuntu had successfully booted, and had seemingly successfully connected to my wireless network as usual.
I've been through the wireless troubleshooting guide, paying special attention to sections 4 and 6 but to no avail, while I'm apparently connected, and have been assigned an IP by my router I'm unable to access anything outside my computer, including the router itself. This happened before, however I solved it by reinstalling ubuntu, and I'd rather not do that again!
output of ifconfig eth0 Link encap:Ethernet HWaddr 00:1c:25:38:8e:de 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) [Code]....
I am facing very strange problem with my Dell with WiFi card (04:00.0 Network controller: Intel Corporation Wireless WiFi Link 5100) It seems I am connected to the WiFi but can not access internet I have to disable networking and re-enable it to access internet.
I'm facing a strange problem after upgrading my Ubuntu to 10.10. After I start up the system, the wifi is not getting connected by default (which was getting connected automatically in the earlier version). So I right click on network manager and click on 'Enable Wireless' option and it gets connected. So far so good. Now I close the laptop lid - it goes to sleep mode and after it wakes up, the wifi never gets connected. When I right click on the network manager icon, the 'Enable Wireless' option is disabled! I have to reboot my machine to get connected!
The web navigation is very very slowly. The load of web page is slowly. I don't know what i do. I connect with wifi. the download with software same emule is good. I use firefox but i tried also other browser.
I've noticed that switching to Ubuntu about 6 months ago has made it noticeably more difficult to use the free wifi at my school. When I had Windows 7 on the same laptop, it was much easier to establish and maintain a connection. I know it's not the hardware. My question is: is there some security setting that makes it difficult to use public wifi on Ubuntu? Also, I don't have this problem at home on my WPA2 home wifi network.
The problem I have is when I install 10.10 I get no wired connection my wifi works great, just no wired connection. I don't have WiFi where I am right now. It works fine when I run off the dvd , but when I install it i get nothing. I have tried static ip, reinstalling, reinstalling drivers. Don't know what else to do. I have a Dell Inspiron 1720. The ethernet is a broadcom 440x.
