Networking :: Changing MAC Using Ifconfig Causes Connectivity Lost

Jun 15, 2010

I am using Suse 10 sp2. By running ifconfig I am changing the mac address. Everything is happening successfully, but this is adapter losing the network connection. Even when I give a static IP. I am not able to ping any other IP.

View 1 Replies


ADVERTISEMENT

OpenSUSE Network :: Changing MAC Using Ifconfig Causes Connectivity Lost?

Jun 15, 2010

I am using Suse 10 sp2. By running ifconfig I am changing the mac address. Everything is happening successfully, but this is adapter losing the network connection. Even when I give a static IP. I am not able to ping any other IP.

View 9 Replies View Related

Ubuntu Networking :: Removed Ufw And Lost All Internet Connectivity

Mar 6, 2011

I was having trouble with some software detecting ports so i removed ufw and now have no internet

Ive tried and none of these work:

View 1 Replies View Related

Fedora Networking :: Lost Internet Connectivity After Installing New NM Packages

Mar 12, 2009

On one of my F10 boxes yesterday, I installed several NM packages with yum update after being advised of their availability. Today, (the first reboot since installation) I no longer have network access on that box.

View 2 Replies View Related

Ubuntu Networking :: AR5001 Chipset - Wireless Networking Randomly Loses Connectivity And Can Not Regain Connectivity

Jun 25, 2011

Wife's laptop has AR5001 Wireless Adapter laptop model is Toshiba Satellite A215

Problem : Wireless networking randomly loses connectivity and can not regain connectivity, the only apparent solution is a full power down , this is not even certain to work. The card works under Windows, she hates Windows. (I love her for this) I know it's not faulty hardware , because it will work for days on end under Windows without problems.

Things I've tried : madwifi drivers (any and all versions available) : These increase stability of the signal and seem to delay the inevitable however it still happens. When using these drivers the only option is to unload them modprobe -r then reboot then remove them again and re add them. It makes no sense why this works, and if I don't remove them prior to rebooting it will not work.

ATH5K drivers : These are pretty much junk, results are unpredictable at best, sometimes it will work perfectly for a few hours, sometimes it will not work at all. Nothing is repeatable, I can't seem to force whatever condition is causing this. rfkill does not show the wifi being blocked (hard or soft), unblocking it anyway does nothing, only way to make this work and it's iffy is to fully power down wait 5-10 minutes turn it back on and it MAY decide to work.

Firmware update : Updated the Toshiba BIOS to the latest version of the firmware 2.0 no joy here either. Same issue both sets of drivers.

Tried different distros and kernels : I've tried Mint 9, 10 ,11 ; Ubuntu 10.10, 10.04 , 9.10 and 11.04 (which is currently installed) , Fedora and OpenSUSE. All are giving the same problems. I have also tried a slew of different kernels no joy from any of them (I'm not at the computer with the issue now I will post exactly what kernel versions I've used when I have access to the machine).

Another useful bit of information, the hard switch to disable/enable wifi WILL disable it but turning it back on does absolutely nothing. The hotkey does nothing at all. The bios does not have an option to disable or enable the wireless card.

I will also post the typical lsmod , lspci , iwconfig all that good stuff when I get back to the computer in question. I'm probably just going to buy a PC card for it and give up on that one, but this is driving me insane and I would really like to see it resolved even if I do replace the hardware.

View 3 Replies View Related

Fedora Networking :: 10 DNS Information Gets Lost After Changing IP Address To Static

Feb 21, 2009

I am using Fedora 10 and when I first installed my machine, I had a DHCP assigned address to my network card. Later on I decided that I wanted to give my machine more of a server role, so I switched to static IP using the system-config-network utility. What happened after that was that I did change the IP address and routing information, but DNS information gets lost at every reboot, so I need to type it back again.

View 5 Replies View Related

Ubuntu :: Mythbuntu 10.10 - Lost Internet Connectivity?

May 2, 2011

The internet has been working happily on my Mythbuntu machine for many months but stopped working overnight.If I try to do "sudo start networking" I get a "Job failed to start" message.There's also a solid orange light on the ethernet socket.As it's been working for months, I don't think my interfaces config needs updating.Looking at what's been updated recently on the system:

1) I've configured the machine to wake from USB. It was working for a couple of days so I don't believe this is the issue.

2) I set up wake-on-lan with ethtool. Again, this was working (although it did seem to disable wake-on-usb and required a reboot to fix)

3) Update to 11.04 - I said no to this, as 10.10 was working very nicely indeed.

I've disabled wake on lan and rebooted. No joy.

ethtool detects the ethernet controller ok and it's listed in lshw.

View 1 Replies View Related

Ubuntu :: Virtualbox PUEL Lost USB Connectivity After Upgrade To Karmic?

Jan 14, 2010

I am using the VirtualBox PUEL version, and I used to run Windows + the driver program of my Lexmark USB scanner - successfully. Now I have upgraded to Karmic, and when I try to attach the virtual machine to the USB scanner I see its line (and all other lines) greyed out, see the screenshot below:

Thus I have lost USB connectivity after upgrade to Karmic. Also in the yellow status box "Unavailable" appears. how to use my scanner and other USB devices again?

View 9 Replies View Related

General :: Ubuntu 10.10 On Dual Boot PC - Internet Connectivity Lost

Jan 12, 2011

Just installed Ubuntu 10.10 on dual boot computer. Each OS is on separate hard drive with GNOME selection between Ubuntu and Windows 7 Ultimate. Firefox was working fine yesterday when I went to use today, nothing. Email through Thunderbird is down as well.

View 3 Replies View Related

Fedora Hardware :: HDD Not Visible To Mount / Lost All Of Vids From It Changing From Nfts?

Jun 11, 2010

unfortunately my second HDD... which is formatted ex2 (accident... was supposed to be 4) but it isn't visible to mount...

I already lost all of my vids from it changing from nfts and i don't really want to loose all my mp3 and samples.

View 3 Replies View Related

OpenSUSE Install :: Lost GRUB Background Picture After Changing Menu.lst?

Jan 10, 2009

I added an entry to grub's menu.lst and reran grub (grub-install hd0) and now my background is gone and the entries just show up like on a normal console.

I searched the forums and I couldn't find anything. Does anybody know why this happened and how to fix it?

I have not changed anything in menu.lst except for adding the new OS.

View 9 Replies View Related

Networking :: IFConfig Changes Not Reflected In GUI

Dec 25, 2008

I have seen this in fedora 8/9 systems :- when I configure the eth0 card and give it a ip address using the ifconfig command from the terminal window and then check out the card from the network config GUI subsequently, it doesnot reflect the ip address as configured through the ifconfig command. However, the ifconfig command continues to show the new ip address as usual. If I need to change the ip address of the eth0 interface which should be the prefered mechanism - the ifconfig command or the GUI. Ofcourse I understand that, for the ifconfig command mechanism a line would have to be added to the rc. Local file so that the change is effective on every subsequent bootup.

View 4 Replies View Related

Networking :: Ifconfig RX TX Accuracy ?

Oct 3, 2010

I'm using ifconfig to monitor the bandwidth usage of one of my VMs, but lately I've notified that while the VM has absolutely no traffic the TX number in ifconfig is counting up.

Here it's the output of ifconfig on VM's interface in just 10 seconds interval:

After 10 seconds:

View 4 Replies View Related

Networking :: Using Ifconfig From Crontab ?

May 14, 2010

I have a command that I run to renew my mobile broadband connection. It works from the terminal, but not in my crontab. My connection usually drops out after being connected for a week or so. So I tried to make a cron job to check the connection every 15 minutes (when there is an IP address on interface ppp0, then it is connected, so if there is nothing, I restart network-manager and it reconnects)

works from my terminal, but not when run as a cron job. If the schedule the above script to run every 15 minutes, it restarts network manager every 15 minutes, so I think ifconfig isn't working from cron. Is there some caveat about ifconfig in cron?

View 1 Replies View Related

Ubuntu Networking :: Ifconfig Does Not List 2nd Nic?

Jan 7, 2010

i am using ubuntu server and when i run ifconfig i do not see my second nic

i'm running a supermicro 5015 dual core atom 330 server

ubuntu server 9.1

View 3 Replies View Related

Networking :: Ifconfig Shows Two Ip Addresses?

Feb 5, 2011

I'm on Fedora core 14 linux. and I'm online with the HSPDA modem. My modem is /dev/ttyUSB0 and when it's dialed it creates the interface /dev/ppp0 , My question is when I hit ifcofig it shows two IP addresses in the ppp0 interface.

Code:

[nature@localhost ~]$ ifconfig
eth0 Link encap:Ethernet HWaddr 20:6A:8A:12:CF:53
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0

[code]....

when I get the routing table, the gateway is setten to the 10.64.64.64 and when I look my Ip address global I found it's 175.157.64.119.

View 1 Replies View Related

Ubuntu Networking :: Manual Update Of Ifconfig?

Mar 29, 2010

To get internet access on my second computer I have to follow the manual routine detailed below:

sudo ifconfig eth0 down
sudo ifconfig eth0 hw ether ..........
sudo ifconfig eth0 up
sudo ifconfig eth0 ....... netmask ........ broadcast ........
sudo route add default gw .........

where the various ........ represent the relevant addresses. This is necessary because my ISP only recognizes one computer - my first one. The above works fine, I simply copy and paste the above from a text document, but I would like to know which files I can alter/create so that all the above is achieved automatically when I boot my second computer.

View 5 Replies View Related

Ubuntu Networking :: How To Assign Labels With Ip / Ifconfig

Oct 19, 2010

I am trying to manually set up a number of static IPv6 addresses to one of the physical network interfaces on my 8.04server box.

I tried to use the "ip" utility like that:/ip addr add [myIPv6addr] dev eth0 label eth0:0

which was accepted by ip (no errors) and the IP address was correctly assigned to eth0. But using "ip addr show" I do not see any reference to the label I defined and "ip addr show dev eth0 label eth0:0" does not come back with anything (empty output).

This seems to contradict the information I found on the ip manpage and I wonder if this is a bug or a misconfiguration on my side. Did anyone successfully used the label functionality with ip?

View 1 Replies View Related

Ubuntu Networking :: Automate Ifconfig Command?

Nov 8, 2010

I manage to get Ethernet over Firewire working between my Windows XP desktop and my Ubuntu 10.10 laptop.However, I am getting tired of having to manually issue the ifconfig command every time.How can I automate it so that the command is done at bootup?

View 1 Replies View Related

Ubuntu Networking :: Ifconfig Eth0 Not Found

Aug 6, 2011

I am working with ubuntu and my eth0 connection was up and working fine untill some days back when all of a sudden it seemed to disapper. I was able to access the net through it before. But now it has vanished and i donno when. i tried ifconfig eth0 up but no use. The result of cat /etc/network/interfaces is as follows

auto lo
iface lo inet loopback

View 9 Replies View Related

Networking :: Ifconfig Address With A Port Number?

Sep 24, 2010

I'm trying to grok a problem I'm having with an embedded machine. I'm pretty sure I can track down the larger problem, but I came across a usage of ifconfig that I don't understand, and I'm pretty sure this is the command that is failing.

The command is: ifconfig eth0 192.168.78.20:9134

I understand how ifconfig works. What I don't understand is the :9134. I can't see anything in the docs about what this means. I know in most contexts it's a port number, but what does it do when bringing up a network interface? Does it limit it to only using port 9134?

View 1 Replies View Related

Networking :: Scripts Does Not Match Ifconfig Or /proc/net

Dec 16, 2010

Bugzilla # 224662 & 9
Red Hat 5.2

a) /etc/sysconfig/network-scripts displays only eth0 and lo0. However, /proc/net/dev and ifconfig INCORRECTLY display :

[Code]....

b) the _tmp NIC is reported in the above Bugzilla report and I'm looking for a patch.

c) Why is the kernel continuing to make NICS for eth1, 2 and sit0?

View 2 Replies View Related

Networking :: Strange Device Appeared In Ifconfig?

Jul 26, 2011

I am noticing the following output when running ifconfig:

[root@proxy log]# ifconfig -a
dev32758 Link encap:Ethernet HWaddr 00:xx:xx:xx:xx:xx
BROADCAST MULTICAST MTU:1500 Metric:1

[code]....

View 1 Replies View Related

Ubuntu Networking :: Dual Ethernet Networking - Lose Internet Connectivity?

Apr 18, 2011

I have a server with two ethernet ports. I configured eth0 to be static, set at 10.1.10.148. I plugged in another router into the other ethernet port in order to configure that router. I configured eth1 to use dhcp. Using /etc/network/interfaces rather than gnome network manager. When I did this, I lost internet connectivity (internet routes through eth0 of course)

- Why did I lose internet connectivity?

In order to recover internet activity, I had to disconnect the new router on eth1 of course, and do sudo ifdown eth1. That wasn't enough however. After rebooting numerous times and pulling out my hair, I finally tried configuring eth0 as dhcp, rather than static, and this fixed the problem.

- Why didn't sudo ifdown eth1 solve the problem? What information was saved between reboots that somehow remembered that I plugged in the new router? Because my thinking was if /etc/network/interfaces was identical, and the network topology was identical, after a reboot everything should be restored, but it wasn't.

View 7 Replies View Related

Ubuntu Networking :: Should Wireless Be Labeled As Eth1 In Ifconfig

Jan 31, 2010

It is. I think this might be the reason why my $wireless objects don't work in Conky?

View 4 Replies View Related

Ubuntu Networking :: Cannot Get ETH0 To Appear In Ifconfig Via CAT5 Cable

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?

View 7 Replies View Related

Networking :: Changes To 70-persistent-net.rules Not Reflected In Ifconfig Until Reboot?

Jun 18, 2010

I am working on a Fedora 13 iso that will be used on some of the PC's at my work, the computers will have a varying amount of Ethernet ports, at least two onboard and up to 6 external. In order to ensure that the same physical port on the back of the computer is always used for the internet connection I have written a script to rearrange the contents of /etc/udev/rules.d/70-persistent-net.rules. The script ensures that the two Ethernet ports on the motherboard are listed as eth0 and eth1, without it they could end up as any port in the eth0-7 range.

The script works well however when its run I need to reboot the PC for the ifconfig to load the correct port as eth0/eth1. I have tried placing calls to my function through the rc.sysinit/rc.5d/rc.local and so on however nothing seems to work.Is there a way to make ifconfig check the mac/eth configuration files for changes (There appears to no longer be an ifprobe command which sounds like what I need). Alternatively is there somewhere I can place the script after udev has created the persistent-net.rules but before anything else loads the information. I have tried chkconfig --level 2345 network off and loading the service later but it still uses the wrong information, only a reboot seems to get it to work

View 3 Replies View Related

Networking :: Unable To Locate Eth0 With Ifconfig In Fedora 12 ?

Apr 26, 2010

I've got a vmware install of Fedora 12 running as a server. This install has the /etc/sysconfig/network-scripts/ifcfg-eth0 file configured with the proper info and the service has been restarted. When I run ifconfig I only get the loopback interface, when I run ifconfig -a I can get the eth0, but without the pre-configured ip address. When I enter ifconfig eth0 up I can activate the interface, but without the afore mentioned ip address. I need to be able to yum ssh, install it, and run it with rsa keys. Can do none of this without an interface obviously.

View 3 Replies View Related

CentOS 5 Networking :: Can't See The Physical Network Interface With Ifconfig - A?

Jun 3, 2010

Centos el5xen x86_64 in a company network, novell-netware, Static IP I have several issues with the Xen network configuration. This configuration worked before, and was maded by a other personn with a higher level in centos and network . I'm trying to re-install xen in bridging mode.

1) The dom0 ping in the company network, but can't acess to the Internet.

I de-activated firewall, iptables and SE-Linux for the test.

the ifconfig-a command return
eth0
lo
sit0 (IPV6 encapsuled in IPV4)
vif0
vnet0
but no Peth0 Physical device

Is it normal and how can i repare this ?

View 7 Replies View Related

Fedora Networking :: Ifconfig And Iwconfig See Wlan0 But Network Manager Does Not

Aug 22, 2010

I just installed Fedora 13 from the Live CD. FIrst off I read the guide and the first step doesn't even work for me. System>Administration>Network does not exist. If I go to System then Preferences I see a Network Manager but it looks nothing like what these screen shots look like. [url]

No wireless card show up in the wireless tab of Network Manager. How can I fix this since my card is listed in ifconfig and iwconfig. Wifi card is a Zonet zew2500p

View 2 Replies View Related







Copyrights 2005-15 www.BigResource.com, All rights reserved