Ubuntu Networking :: Why Does OS List The Router As Eth0
Jun 17, 2011i recently switched over from windows xp and instead of listing my 2wire router it just says eth0 now
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Ubuntu Networking :: Eth0 Isn't Connecting To Router?
Jul 18, 2010I 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].....
Ubuntu Networking :: Lost Eth0 On Wire To Router?
Apr 22, 2010My 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]....
Networking :: No IPv4 On Eth0 - No Connect To Router
Apr 20, 2010I 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?
General :: Missing Eth0 Ethernet Interface In Ubuntu — Can't Connect To Router
Aug 27, 2011I'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!)
Networking :: Eth0 Fixed IP - Eth1 DHCP Gateway - Access To Eth0?
Aug 19, 20095.10 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?
Networking :: Production Server With Static IPs On Eth0 And Eth0:1 - Getting Private LAN On Eth1?
Jul 1, 2010I 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).
Debian Configuration :: Using WiFi Router On Eth1 Bridged To Eth0
Dec 13, 2015I 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?
Networking :: Ignoring The Unknown Interface Eth0=eth0?
Dec 18, 2010I'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]....
Ubuntu Servers :: 10.10 - Setup Eth0 With Subdevice Eth0.0 And Eth0.99 To Come Up At Boot
Apr 22, 2011im 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]....
CentOS 5 Networking :: Kernel Rpm Install After Error "Bringing Up Interface Eth0: Device Eth0 Has Different MAC Address Than Expected, Ignoring"
Dec 26, 2010i 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 RelatedNetworking :: Sending Video Streams From Eth0 And Eth1 To The Other Server Programs' Eth0 And Eth1?
Jul 30, 2010I 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]....
Ubuntu Networking :: DLink ADSL Router As Main Router And The Belkin N1 As Repeater?
Apr 13, 2010Because 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 RelatedUbuntu Servers :: Machine Name Not Showing In Router Attached Devices List?
Nov 17, 2010As the title says the machine name is not showing up in the attached devices list on my router. Is there a file where I need to add the name? Or is this an issue with the router? The router finds all the other machine names on the network except my 3 servers.
Ubuntu Server 10.04 Lts
Ubuntu Server 10.10 Lts
Fedora Servers :: Proftp Behind A Router - List The User Dir It Freeze
Jun 9, 2009I got Fedora 10 and I installed a proftpd server it works in local network but not from outside. Actually I can see it checks for user and pass but when it has to list the user dir it freeze. The server is behind a router. I am using passive ports 60000-60100 and I forwarded all connections to and from 21 to 60000-60100 onto internal (192.168.0.109) IP address.
[Code]...
Networking :: Setting Up Linux Box As IPv6 Router To Replace Netgear WNR1000 Wireless Router?
Jun 18, 2011I 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?
Networking :: Set Up A Laptop As A Router To Connect Wirelessly To ADSL Router?
Nov 6, 2009I 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.
Networking :: Network Setup - Router - Wireless Router Card ?
Apr 24, 2010I'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
Networking :: Linux As A Router / Bring 147 & 148 IP Online Without Router?
Mar 26, 2009These 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.
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, 2010I 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 RelatedNetworking :: Samba Read List And Write List
Mar 12, 2011I am working for a community where several people are engaged for 4 different development projects. we are planning to have a samba server to store our data.Now the problem is that I have created a share in which @groupa, @groupb and @groupc are allowed to read and write. But three of the members of @groupb are only allowed to for read permission only.
View 1 Replies View RelatedNetworking :: Old Router Behind New Router - Configuration ?
Oct 30, 2010I'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.
Ubuntu Networking :: Use One Wireless Router To Connect/detect To Another Wireless Router?
Aug 1, 2010My son lost his USB Wireless stick for his Computer. I had thought I heard that if you had a second wireless router, you could use it somehow to detect the wireless router you have already set up in your home (like using a wireless card)? Is this what Ad-Hoc is? Either way, can this be done and if so how? I use a WRT54Gx2 Lynksys router and have a TRENDNET TEW-432BRP wireless router and also a spare D-link DI-514. I use ubuntu 10.04, and also wanted to know if I connected one of the router to his on the LAn port could he connect msaybe through an Ad-Hoc on my local computer here? He uses XP on his. I'm a newbie to linux and networking in general.
View 2 Replies View RelatedGeneral :: Stop And Restart Ethernet Connection Ubuntu 9.10 - Ignoring Unknown Interface Eth0=eth0
Mar 8, 2010If I uncheck and recheck "Enable Networking" in the Network Manager Applet 0.7.996 I would expect the wired network to disconnect (which it does) and reconnect (which it does NOT). So I tried sudo ifdown eth0 and got
Quote:
Ignoring unknown interface eth0=eth0.
ifconfig tells me
Quote:
eth0 Link encap:Ethernet HWaddr 00:25:64:e8:18:2c
inet addr:192.168.0.112 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::225:64ff:fee8:182c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
[code]....
so I am at a loss. How do I stop and restart the network interface short of rebooting the machine?
Ubuntu :: Eth0 Doesn't Exists For Firestarter - Eth0: Error Fetching Interface Information: Device Not Found
May 5, 2010My network name is eth2 it was changed by some reason and now i got these errors... i installed, reinstalled, re re installed, tried to run the asistant but no luck :/
Code:
* Stopping the Firestarter firewall...
eth0: error fetching interface information: Device not found
eth0: error fetching interface information: Device not found
eth0: error fetching interface information: Device not found
[code]....
Networking :: Linux Router / Configure Linux CentOS 5 As A Router Using Iptable?
Nov 27, 2009I want to configure linux CentOS 5 as a router using iptable, .Im new in linux so I need the steps to do that
View 5 Replies View RelatedNetworking :: Cannot Ping Wireless Router Or Access Router Settings - Wireless ?
Jun 9, 2010I moved my server and network equipment, and now the wireless works but I cannot get my server online. I host a website, so this is kind of urgent.
I have a wireless router and can access the internet fine on my laptop. My server is wired & connected to the router. It sets up the networking properly.. ifconfig has an ip address, the default gateway is present. But I cannot ping google, or even the router. It says destination host unreachable.
So I go back to the laptop to check the router settings.. sometimes it likes to assign the server the wrong internal ip. But, I can't access the router settings either! The page (192.168.1.1) times out. Same with trying to ping the router. How can the laptop be online if it can't reach the router?
Oddly, ifconfig on my laptop reports an ip address starting with 99.233. It's always given me an internal address starting with 192.168. What's going on here? Is the router not allocating an internal ip? I use wicd to connect, if it's relevant.
We have a windows laptop that can only get a "local connection". Now it does sound like the router is forwarding directly to my laptop, instead of allocating internal ips.
General :: Force Server To Open Connections Via Eth0:0 Not Eth0?
Mar 3, 2010I got two IP's in my dedicated server. Both are external IP's. I would like to make connections using 2nd IP address under eth0:0 interface. For example: when using "lynx whatismyip.com" should display my 2nd IP. How to do this using iptables ?
View 1 Replies View RelatedNetworking :: Networking Routing \ Use The Terminal To Assign Server Eth0 A Proper IP Address?
Jun 8, 2010i know exactly what i need to do, im just not familiar enough with command line to do it properly.i have 7 computers.the first 4 are connected to a router via wireless at one end of the house. of the last 3 only 1 will be able to access the router via wireless, so it needs to share it's one wireless connection via ethernet. this computer i'm going to call 'server'server will have two IP'swlan0 192.168.1.6 this connects to the router that has internet access.eth0 i intend to have the following settingsip:192.168.0.1sub: 255.255.0eth0 will connect to a second router, where the cat5 cable goes from the server, into the internet port of the router where i will define the router's static IP:IP: 192.168.0.100sub: 255.255.255.0gateway 192.168.0.1i have then set the router IP for LAN handling as 192.168.27.1 and all ethernet connections will have a 192.168.27.x IP.
so i need to know how to, without a gui application, use the terminal to assign server eth0 a proper IP address, and tell the server to take the connection it has and share it through eth0 to supply internet for the last 2 computers via ethernet.i had it set up in this way with a windows machine being the one that had the wifi access, but i'd rather have it setup for the ubuntu server to do this task. security is imperative for these 3 remaining machines, so just getting 2 more wifi adapters for a connection to the initial router isn't an option.the 2 that connect to server do so through SSH and though server IS connected via wireless it only makes outward connections through
Debian :: Eth0 Disapears And No Eth0 Inteface Found
Jul 13, 2009On my machine (Desktop PC) I have 2 network card : wireless (rt61 802.11) and a wired card (BCM44). When I install debian 5.
The wired card is detected and logical name eth0 is assigned, while wireless is not assigned I install firmeware* software to configure the card. It is done in some way ( I used mnetwork from mepis, it works fine).
Now the problem: eth0 disapears, and no eth0 inteface found? ifconfig gives just wlan0.
Question: Why there is no eth0, it was before configuration of wlan0 ?
How to active again eth0, or ho to create the logical eth0?