Ubuntu Networking :: Lost Eth0 On Wire To Router?

Apr 22, 2010

My 9.10 has lost it connection to my router.Lucid finds it ok as Auto ethO , XP gets on the net ok as wellHow do I fix Karmic ? I click on network, it is greyed out but still lets me edit connections and add wired as auto etho but still no connection.Not sure what else to do ?ifconfig -a shows -

Code:
ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:22:15:20:1b:3f

[code]....

View 3 Replies


ADVERTISEMENT

General :: Connecting Pc With Router WRT54GL Via Wire?

Aug 3, 2011

I have problem in connecting my Pc (which is linux based) with wireless router (LINKSYS WRT54GL) via wired. how to do the networking between my pc and router.

View 1 Replies View Related

Ubuntu Networking :: Eth0 Isn't Connecting To Router?

Jul 18, 2010

I downloaded wubi, installed ubuntu, and booted it up. Everything went smooth, it finished installing with no problems. It restarts again and I login. Firefox opens.....server not found.

That brings you to where I am now. It says that eth0 is connect. I manually changed the ip address, the netmask and gateway. Still I have no luck.

route reads as follows:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.1.1 * 255.255.255.255

[Code].....

View 3 Replies View Related

Ubuntu Networking :: Why Does OS List The Router As Eth0

Jun 17, 2011

i recently switched over from windows xp and instead of listing my 2wire router it just says eth0 now

View 9 Replies View Related

Ubuntu Networking :: Lost Eth0 After Installing VPN

Jun 15, 2011

I wanted to try to install one of those public VPN services in order to try a software program. I setup a VPN for a service that is located in the UK. I successfully installed the VPN that just required me to use their gateway address and they also supplied the username/password. All I did was edit the connections from the Ubuntu Network Manager to add the VPN. After rebooting I no longer have my wired "eth0" connection listed and the Network Manager shows a red X.

I use a DSL service and my computer is directly connected to the router. I am using Ubuntu Natty 11.04. I read where you may have to edit the /etc/udev/rules.d/70-persistent-net.rules because it may cause an entry of eth1 instead of eth0. My file still shows eth0. I have also deleted the contents of that file and rebooted, as suggested in other posts, and eth0 is in the file, but still does not show in my Network Manager.

If I type in terminal: sudo ifconfig | grep eth, I get an output of:
eth0 Link encap:Ethernet HWaddr [my mac address]
Going to Whois shows my IP address as that from my local ISP. Clicking on Network Manager > Connection Information, I receive a window that states : "No valid active connections found". Obviously, I am connected to the Internet. Is there a way to restore my eth0 connection?

View 1 Replies View Related

Networking :: No IPv4 On Eth0 - No Connect To Router

Apr 20, 2010

I have tried clean installs of Knoppix v0.6, Xandros 2.0, and Ubuntu 7.1... same issue with all. I cannot seem to get eth0 (via chip on mobo) to get/have/use IPv4. ifconfig shows only IPv6. (I cannot paste any info because linux desktop is on different box.)

End result is that I cannot get the linux desktop to connect to my lan, either with dhcp or with static ip.

I have a belkin router configured as my gateway 192.168.3.1 and nothing fancy with the setup. I have dhcp open for 192.168.3.245 thru ...254 and at most there are only 4 systems in home connecting with dhcp at any time. all other systems have static addresses.

I have two decades of desktop and lan support under my belt, but relatively small amount of command line experience and almost no history with linux (unless you count a dozen unsuccessful attempts to burn linux distro install discs on this Vista desktop).

Therein lies the start of my prob. I need to build and manage a fileserver for my home, but cannot seem to get a working installer cd or dvd to burn from anything I download.

So I said to myself, "Self," I said, "you're a tech. Build a workstaion, use the DVD that came with your Linux Bible (2008 Ed.) to install one of the linux distros on it, then download a recent, stable server distro and burn it using the linux workstation."

Unfortunately, if I cant get an ipv4 connection to my home network, I cant get out to the Internet to download any newer ISO files.

So what am I missing or doing wrong? How do I tell linux to stop trying to use IPv6 and let me use IPv4?

BTW, eth0 works just fine if I install Windows on that PC, so I know its not bad HW. Could it be a driver issue? Or do I need to use some Terminal command to turn off IPv6 and reconfigure eth0 for IPv4?

View 5 Replies View Related

Networking :: Ubuntu 10.04.2 - Dhclient And NetworkManager - Eth0 Connection Lost

Feb 24, 2011

I'm running Ubuntu 10.04.2 LTS and from time to time eth0 connection is lost.

Looking at syslog (below), if its a hardware (network card) problem or a software bug?

syslog file:

View 4 Replies View Related

Ubuntu Networking :: Connection Lost After Router Restart

Aug 11, 2010

My ISP pushes software updates occasionally to my router. This also forces the router to restart. When the router restarts, my ubuntu box loses its network connection and does not automatically restore it after the router comes back online.How can I configure ubuntu to restore the connection once it is available again? It happens on my windows workstation...I am using ubuntu on a box with no screen / keyboard / mouse it serves as a fileserver and I remote desktop in. Obviously if the box drops the connection it is a major annoyance. I am using version 9.10

View 1 Replies View Related

Ubuntu Networking :: Etho Wire Is Not Working

Mar 23, 2011

Just installed win7 next to ubuntu 10.10. on a newly purchased Dell inspiron N5030. Win 7 wire and wireless both work. In ubuntu , my wireless works. but cannot get the wire to work.I just ran ifconfig and found out i have nothing in the ethO at all.How do i put it in.

View 1 Replies View Related

Ubuntu Networking :: Wire Connection Not Showing In Panel Or Connecting?

May 15, 2011

My sons Ubuntu installation on his computer hasn't showed the Network Connections Icon in the Panel for a long time. This weekend everything was working fine and we needed to go away for the weekend and unhooked the router. When we came back the computer wouldn't connect back up to the internet.

How can I fix the Wired Connections Icon on the Panel and get the Auto Connect to work again?

View 8 Replies View Related

Networking :: Both Wire And Wireless Networks Disabled?

Oct 9, 2010

I just installed ubuntu 10.04 on my Dell precision m4300 and am unable to activate either wired or wireless connections. Had them both before and not now. I have tried several online info sites but unable to clear up situation.

View 3 Replies View Related

General :: Missing Eth0 Ethernet Interface In Ubuntu — Can't Connect To Router

Aug 27, 2011

I'm having trouble getting my Ubuntu 10.04 machine (Sony Vaio VGN-SR490) to connect to the Internet by way of an Ethernet cable connected directly to my router.

I'm able to connect to the Internet using this same cable using a Windows machine, so there's something wrong with the way Linux is configured.

How do I got about figuring out what the problem is and solving it?

Here are my network settings on Linux:

$ ifconfig
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host

[Code].....

It looks like the network adapters list is empty. I will now install both Windows XP and Ubuntu Linux dual-boot. I'm still not able to access the internet, even through Windows. I'm wonder if this could be a hardware problem with the computer or a problem with the router itself. Other computers can connect to this same router, and work fine. (That's how I'm posting this after all!)

View 3 Replies View Related

Networking :: Eth0 Fixed IP - Eth1 DHCP Gateway - Access To Eth0?

Aug 19, 2009

5.10 Breezy configured as machine controller. Works great eth0 is a fixed IP to communicate with controller comms board. Not easy at all to alter - the comms board is hard coded to listen on eth0 for commands.

I can use eth1 as the default gateway and ping google.com, etc. But when I now attempt to communicate with the controller with netcat, e.g.

Code: echo !HH | nc 192.168.1.6 80

I obviously never get an answer since the request is passed via eth1. Using the -g option with netcat doesn't work either. I had a look at iptables but it doesn't seem to be able to do what I want. How I can still use eth0 as my communication port to the controller whilst eth1 is the default gateway?

View 17 Replies View Related

Networking :: Production Server With Static IPs On Eth0 And Eth0:1 - Getting Private LAN On Eth1?

Jul 1, 2010

I have two servers on a vlan at my datacentre/colocation and previously both servers had public IPs on their eth0 interfaces. The servers are HP ProLiant DL360s - one is a G4 and one is a G5 The newer G5 is now the LAMP server and the G4 has been retired and I want to repurpose it as an iSCSI target using openfiler freenas or similar.

My G5 has public/static IPs lashed to the eth0 physical interface and the eth1 is not configured to do anything yet. The G4 will have both interfaces available - perhaps one for ssh access from one of my static public IPs and the other to be a private IP on the local vlan. Here is what I am trying to get my head around...

The G5
eth0 - Public IP - full LAMP services on two or three virtual interfaces
eth1 - Private IP 192.168.0.1
The G4
eth0 - Public IP for ssh
eth1 - Private IP 192.168.0.2

Because my traffic between eth1 on these boxes is via private IPs on the local private vlan it doesn't add to my quota for bandwidth. How do I go about configuring the routing and gateways and other aspects of this so that I can run a private IP space network between the eth1s and still serve the outside world from the eth0s...

I am afraid that if I assign the private IPs to the eth1 interfaces the routing may either not work or interfere with the access to the production internet facing interfaces (eth0s).

View 10 Replies View Related

General :: Lost Connection - Cannot Activate Eth0 / What Happened?

Jun 16, 2010

I am running fedora vm under XP host and using NAT connection to the Internet. It usually works fine, but some time the connection is just lost. I went menu System->Admin->Network and see the interface eth0, but I cannot activate or deactivate. The status is inactive. (when the connect works, the status is active). so I try "ifdown eth0" and "ifup eth0" command, and got

"Error: Connection activation failed: Device not managed by NetowrkManger

The menu System->Admin->Network device control show no interface.

I am not sure what happened.

View 2 Replies View Related

Debian Configuration :: Using WiFi Router On Eth1 Bridged To Eth0

Dec 13, 2015

I am running : Linux ics385 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt11-1+deb8u6 (2015-11-09) x86_64 GNU/Linux

Here's the situation

1. I'm trying to configure a WLAN using a D-Link DLR655 wifi router that is connected to eth1.

2. eth0 is connected to the ISP's DHCP router and has the IP 192.168.0.24

3. I've bridged eth0 to eth1 such that eth1 has the static IP 192.168.8.1

4. I've manually configured the router and it uses the 192.168.8.1 as the WAN address with its subnet on the 192.168.10.* address space.

5. I can connect a laptop to the D-Link using wifi and ping 192.168.8.1 but I can't ssh to it or to anything beyond it from the laptop.

6. If I'm on the server (192.168.0.24) I can ssh into either 192.168.0.24 or 192.168.8.1 but not if I'm on the laptop. I conclude from this that ssh is not the problem but the laptop says ssh: connect to 192.168.8.1 port 22: connection refused.

So, am I conceptually confused or is it that I have to open ssh up to the other sub-net address spaces or something like that?

View 5 Replies View Related

Networking :: Ignoring The Unknown Interface Eth0=eth0?

Dec 18, 2010

I'm running a dual boot Ubuntu 10.04/Backtrack 4 (Ubuntu 8.10) system. I can get internet in the BT4 side but not in the Lucid side. In Lucid I can ping my router, and the network manager says I'm good to go, but I can't get to any web sites. It all started when I tried to put my laptop on another network by mimicking the settings of a computer I had just unplugged from the network. MAC address and all.

ifconfig eth0:

Code:

eth0 Link encap:Ethernet HWaddr 00:1f:16:ba:4c:8c
inet addr:10.136.9.147 Bcast:10.136.9.159 Mask:255.255.255.240
inet6 addr: fe80::21f:16ff:feba:4c8c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

[code]....

View 3 Replies View Related

General :: Lost (wired) Eth0 After Installing Broadcom Bcm4328 Wireless Card / What To Do?

Dec 31, 2009

I have a dell mp1210 xps laptop. I just recently installed installed Ubuntu 9.10 and am very green. With difficulty I managed to install the drivers for the wireless card and now have wireless on the laptop. In order to get the wireless working I had to restart my computer, and once it booted up again the wireless works, but there is no trace of eth0-my wired network device (Broadcom BCM4401-B0) which was working fine before I got the wireless adapter working. Lspci still shows the device as it did when it was functioning, but ifconfig only shows my local loopback and wlan0 (my wireless device). I am not sure how eth0 got deleted, I am wondering if maybe I have to set up some sort of switching between the wired and wireless adapters so they are not both active at the same time. Any suggestions would be really nice, I have been digging through the forums, but I am unsure of what went wrong or what to do about it.

View 14 Replies View Related

Ubuntu Servers :: 10.10 - Setup Eth0 With Subdevice Eth0.0 And Eth0.99 To Come Up At Boot

Apr 22, 2011

im trying to setup eth0 with subdevice eth0.0 and eth0.99 to come up at boot

eth0 is dhcp clint
eth0:0 is static ip
eth0.99 is 802.1q vlan interface
/etc/network/interfaces
Code:
auto lo
[Code]....

View 1 Replies View Related

CentOS 5 Networking :: Kernel Rpm Install After Error "Bringing Up Interface Eth0: Device Eth0 Has Different MAC Address Than Expected, Ignoring"

Dec 26, 2010

i install kernel rpm after i boot that kernel network not working kernel name : kernel-rt-trace-2.6.24.7-132.el5.centos.i686 [URL] error "Bringing up interface eth0: Device eth0 has different MAC address than expected, ignoring."

View 1 Replies View Related

Networking :: Sending Video Streams From Eth0 And Eth1 To The Other Server Programs' Eth0 And Eth1?

Jul 30, 2010

I try to generate a server client code. What i try to do is sending video streams from eth0 and eth1 to the other server programs' eth0 and eth1. In order to do that, i decided to use SO_BINDTODEVICE. But the code is not working. Am i misunderstood the usage of SO_BINDTODEVICE.

1-Defining two ports
2-Defining two sockets
3-Assigning host ips on them

[code]....

View 3 Replies View Related

Ubuntu Networking :: DLink ADSL Router As Main Router And The Belkin N1 As Repeater?

Apr 13, 2010

Because of the configuration of my house, I need two routers.I have a DLink ADSL router as my main router and the Belkin N1 as my repeater.I have set up the IP address in the Belkin to be 10.1.1.10 - my DLink is 10.1.1.1. I have disable the dhcp in the Belkin and set the DNS as ISP provided. [URL]..I have set the channel to 11 and in the Ubuntu Network Manger I have set the IPV4 to Link Local Only. I can see the Belkin and connect with my PC.but it will not take me through to the internet.

View 9 Replies View Related

Ubuntu Networking :: Use Laptop As "wireless To Wire" Network Converter?

Jan 19, 2011

The problem is that I'm too lazy to buy a wireless network card for my stationary computer that I'm going to use on my room with no wired network. So I'm looking for how to use my laptop with Ubuntu 10.10 as a wireless to wired network converter, sorta. I know how to use a laptop as a "wire to wireless" network converter, but in my case, I need the opposite. I think I'll need a crossed network cable between my ubuntu laptop and my stationary computer (that's the one I'm aiming to get internet onto), but I don't have a crossed one, can I use a switch instead?

View 3 Replies View Related

Networking :: Setting Up Linux Box As IPv6 Router To Replace Netgear WNR1000 Wireless Router?

Jun 18, 2011

I want to set up a Linux box as a wireless router to replace our existing Netgear WNR1000 router, as I believe the Netgear does not support the coming IPv6 protocol. Unfortunately, it is not flashable with OpenWRT or DD-WRT presently.

As we have Comcast, our cable modem acts as a dumb modem according to the customer support guy I talked to, and our router is the one that asks for the IP address from DHCP. Thus, when Comcast switches over to IPv6, I don't believe my existing router would work, correct?

My idea is to take a Linux box and put two NICs and a wireless adapter in it, using IPCop or Smoothwall to set up a router. I could then enable IPv6 support for when we have IPv6 with Comcast. Is that possible? Would there be a way to get BIND to hand out private IP addresses in the same subnet on the both the LAN NIC and the wireless card?

View 1 Replies View Related

Networking :: Set Up A Laptop As A Router To Connect Wirelessly To ADSL Router?

Nov 6, 2009

I have a desktop PC running Ubuntu 9.10 and Windows 7, and a Eee PC 701 laptop running EasyPeasy Ubuntu 9.04. I'd like to connect the desktop to the laptop with a wired connection (eth0), then the laptop to my ADSL router using wireless (ath0).

I have a crossover ethernet cable (I bought on ebay). I have set up my laptop with a static IP address on my LAN and it uses OpenDNS.

I have added this to /etc/sysctl.conf on the laptop:

net.ipv4.ip_forward=1

Then I tried this on the laptop:

sudo iptables --table nat --append POSTROUTING --out-interface ath0 -j MASQUERADE
sudo iptables --append FORWARD --in-interface eth0 -j ACCEPT

This is a variation on what I found on other sites describing how to set up a router. I don't understand iptables very well, but I gather that the above two lines should set up forwarding so that traffic from my router to the laptop will be forwarded to the desktop, and vice versa.

But this doesn't work. The connection doesn't even establish between the laptop and the desktop.

View 12 Replies View Related

Networking :: Network Setup - Router - Wireless Router Card ?

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

View 2 Replies View Related

OpenSUSE Network :: Lost Wired Network Interface Eth0

Feb 14, 2010

Last night while setting up wired & wireless connection in openSuse 11.2 Gnome version via YAST's ifup, I got wireless but lost wired connection (interface eth0). Dmesg shows that eth0 became eth1. I cannot get eth0 back. Is there any way to remedy this situation, eg. get info from the Ubuntu partition in my triple-boot laptop, without having to re-install openSUSE?

View 3 Replies View Related

Networking :: Linux As A Router / Bring 147 & 148 IP Online Without Router?

Mar 26, 2009

These r IP provided by my ISP that i've put on Fedora 8:

WAN IP:xxx.xxx.xxx.17 (eth0)
Subnet:255.255.255.252
Gateway:xxx.xxx.xxx.18

Valid static(public) IP set of 2:
IP:xxx.xxx.xxx.147 & 148 (eth1, eth2)
Subnet:255.255.255.240

i want to run xxx.xxx.xxx.147 as a web server & xxx.xxx.xxx.148 as a ftp server. but I'm able to ping only xxx.xxx.xxx.17(WAN IP) from outside world. Can any1 tell me that how can i bring my 147 & 148 IP online without router.

View 6 Replies View Related

Networking :: Kernel - Forward Packets From Eth0 To Eth1 And Eth1-to Eth0 As Well As Get A Copy Of These Packets For Analysis

Sep 27, 2010

I have a hardware device with two ethernet ports, eth0 and eth1 running Centos 5. Basically my goal is to forward packets from eth0->eth1 and eth1->eth0 as well as get a copy of these packets for analysis. If I set IP routing to do the forwarding then I won't get a copy of the packets for analysis.

View 3 Replies View Related

Networking :: Old Router Behind New Router - Configuration ?

Oct 30, 2010

I've moved a linuxbox from being my gateway (nat, etc) to behind a new gateway (a DD-wrt router). For transparency purposes, I'd like to continue using the old box services, and just have the gateway in front of it.

Here's what I did:

The newgateway is setup for class C, 192.168.0.0

This configuration works, but sometimes it doesn't and I haven't figured out why yet.

At sometimes, clients on the LAN get throughput rates with very little speed loss (using speakeasy speed test). They will run at 33M on the LAN, running through both the newgateway, and the oldbox, and get about 35M with directly connected to the cable modem.

Other times, it seems nothing can talk with anyone, and I am not sure why.

I know what I have done is a little unconventional, but it's a transitional thing, and I am not sure it is the cause of the problem, although it was the last things changed.

View 2 Replies View Related







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