1
vote
0answers
8 views

What is the cni0 interface seen on ifconfig

What does the cni0 interface denote? cni0 Link encap:Ethernet HWaddr 00:50:F1:80:00:00 UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1 RX packets:3 errors:0 dropped:0 ...
0
votes
0answers
56 views

Can't access second NIC

I have 2 NICs with the primary em1 the other is p3p1. It appears from ifconfig dmesg that both are up and working but I can't access p3p1 from my Java test application. No joy with ping either. ...
0
votes
1answer
15 views

Changing Order of Interfaces

Hoping someone can help me, what I'm wanting to do is change the order of my interfaces on Ubuntu 12.04LTS. We're running our Ubuntu server on a VMWare box with three virtual interfaces. I've read ...
0
votes
1answer
191 views

Ubuntu 14.04 LTS Network Manager overwrites static network interface

I spent far too long figuring this out, and wanted to share. Simple task: Add a static IP address to the 2nd of 4 NICs on my server. To start, I followed the instructions here under Static IP ...
0
votes
0answers
25 views

How to set MTU for autoconfigured interfaces

I have a computer that may have multiple network devices, which are only in some cases available. Currently all network devices are configured completely automatically. Now I need to set the MTU for ...
0
votes
0answers
57 views

Interface not starting on boot

I have Ubuntu server 10.0.4 and ASUS-N53 wireless USB adapter I needed to compile source files to get the driver to work and the logical name I got for that interface was ra0 The ...
1
vote
2answers
199 views

Can't use two network interfaces at the same time

I have a problem. First of all, I wan to set up a server on Ubuntu 14.04. I have 2 interfaces: eth0 for dhcp server and eth1 for internet connection. But if I connect to two networks at the same time, ...
0
votes
2answers
111 views

Two subnets on one interface

So Im trying to configure a zoneminder video server that connects to ip cameras on the lan but I would like the cameras to be on a different subnet as our office and Im not sure how to accomplish that ...
0
votes
0answers
27 views

Static ARP blocked all devices

I tried to configure static ARP on some interface, but when I do this the server blocked any connections from my PCs which are in the server's ARP table. I have a script which runs at startup: ...
0
votes
1answer
49 views

Where is Virtualbox adapter

In previous when I had win 7 and installed VMware. When I want to make a LAN connection between my host (my win 7 ) and guest (any OS suppose xp ). I set connection to NAT. After that I can ping my ...
0
votes
1answer
227 views

Assigning additional labeled aliases to a single physical network interface for IPv6 addresses

Currently I am stuck trying to label the interfaces for additional IP addresses I am adding to an interface. Let's say the interface is eth0 ($IFACE), then for $ADDRFAM="inet" I can add an IPv4 ...
0
votes
1answer
49 views

Is there a way to see the commands that would be executed based on /etc/network/interfaces stanzas?

The stanzas in /etc/network/interfaces translate to certain commands to bring up or down an interface and configure it. Is there a way to see which commands it translates to (similar to set -x in a ...
0
votes
1answer
309 views

Wifi Connectivity, eth0 and wlan0 interface?

I do not have any problem in Internet connectivity, both in terminal and in browser. Few days earlier, I used to get a dynamic ipv4 address to eth0 from my ISP and the interface used to be up and ...
1
vote
0answers
75 views

802.1Q VLAN Tag - is possible to set without editing config file?

Is it possible to make tagged vlans to be shown on network-manager like PPPoE connections? My computer is a laptop so I can't add another Ethernet card and now I must edit config file to ...
0
votes
0answers
8 views

Problem with Network Interface Broadcom 14e4: 4359 [duplicate]

I recently bought a Lenovo and Essential B590 with windows 8 and decided to install Ubuntu13.10 as the primary operating system. Once deleted windows 8 installed Ubuntu and can not see that I ...
0
votes
3answers
67 views

make mistake in setting IP

I have a device that has Linux Ubuntu OS. I use SSH for connecting to it. my Linux version is like below when typed cat /proc/version command: Linux version 3.2.40-g996c4d7-dirty ...
1
vote
1answer
6k views

configure a network interface into promiscuous mode

I am working on ubuntu 12.04 lts server on vmware workstation. I need to configure my network interface to work in promiscuous mode. This is my configuration auto eth1 iface eth1 inet manual up ip ...
1
vote
2answers
92 views

Configure network interface for direct connection

I need to connect two Ubuntu machines directly via ethernet (i.e., no switch or router between them). One of them is running Ubuntu Desktop, so I am happy to use the network manager for that. The ...
0
votes
1answer
103 views

Cannot find eth1 interface [closed]

I installed ubuntu precise on my IBM x3100 server and cannot find eth1 on my interfaces file. Any clue what should I do? Thank you
2
votes
1answer
122 views

ifconfig command only displays 'lo" interface but not others on Ubuntu 12.10

When I type ifconfig -a on my computer, all I see is the lo device, not eth0. Also, when I type ifconfig interface, I get the following: interface: error fetching interface information: Device ...
0
votes
1answer
62 views

Interface for my router in Ubuntu

I would like to know if there is a way in which I can create an interface in my Ubuntu 12.04 LTS Desktop for my router. My Goal: I want to tcpdump the ip address of the router which is 192.168.1.1. ...
1
vote
1answer
64 views

Hidden Interface configuration?

During installation of Ubuntu server 13.04, I configured the primary ethernet interface. This interface is visible in the /etc/network/interfaces file. The system has two additional interfaces which ...
0
votes
0answers
102 views

Network bridging and routing

i have a isp. and i have ubuntu server 12.4 with three nic. here eth0 ip is 10.10.10.15 with the gateway 10.10.10.1, eth1 ip is 10.0.0.20 with the gateway 10.0.0.1 and last eth2 my local lan ip ...
0
votes
1answer
355 views

Set wifi txpower from /etc/network/interfaces

I am trying to configure my wifi to reliably connect at start-up on a headless device. I currently have done this with a simple entry in /etc/network/interfaces, along the lines of auto wlan0 iface ...
0
votes
0answers
1k views

Virtualbox bridged adapter - only one network interface listed in /etc/network/interfaces

I've been trying to configure another version of linux in virtualbox, and I want to connect it to my network using the bridged adapter option by bridging it to my wifi. Its been taking me a while to ...
0
votes
2answers
1k views

wifi scanning results say No scan results

I'm trying to use wifi access in Ubuntu 12.04 and for some reason, I do not want to use network-manager. So, I removed it. What I'm trying to do is to see what kind of APs around me, so I issued the ...
0
votes
0answers
110 views

SLIP interface doesn't send datagrams to upper layers

I'm testing an IPv6 stack implementation for embedded systems. My embedded plaform is connected to an Ubuntu 13.04 machine through RS232 over USB. To test the stack, I'm trying to ping the platform ...
0
votes
0answers
48 views

How To Connect Quassel via ppp Network Interface While Chromium via wlan at Same Time?

I have 2 different network interfaces at same time (wlan and ppp). But the wlan (public wifi hotspot) always blocks IRC port. So I can not use my Quassel when connected in wlan. Then I want: My ...
4
votes
2answers
1k views

why is network interface loaded as “rename3”?

My ubuntu 13.04 machine (ASUS M2n32SLI deluxe mobo) is loading one of two interfaces on the motherboard as "rename3". The other interface is eth0. No cable connected on eth0. Why is this so ? How do ...
0
votes
1answer
205 views

What determines ethernet port name?

I have two computers which are supposed to be identical hardware. However on one machine, the ethernet port shows up as "eth1" whereas on the other it appears as "eth2". I am trying to manage an ...
2
votes
1answer
2k views

Help configure multiple network interfaces

I'm running Ubuntu inside a VM on my work laptop. I have to run my VPN software on my VM Host system and need access to my VPN network from within my Ubuntu VM. I can set my VM's network interface to ...
1
vote
1answer
235 views

Setting up /etc/network/interfaces for sandboxed network with 12.04 LTS

I am trying to set up Ubuntu 12.04 as a router so I can isolate an IP subnet. For the isolated subnet, connections are only allowed via port forwarding. Other than that, neither inbound nor outbound ...
2
votes
0answers
252 views

Server in LAN with two network cards, can't telnet / ping to the second even if it works

I have an issue with an Ubuntu 12.04 LTS (updated) server. For reasons too long to detail, it has got one eth0 interface assigned to 192.168.1.9 and one wlan0 interface assigned to 192.168.1.10. Both ...
0
votes
1answer
632 views

Network Problem : Cannot connect to a ping-able website with Firefox

For some reason I need to configure my computer using static IP settings to let other computers to find it. Here's my settings in /etc/network/interfaces: # This file describes the network interfaces ...
1
vote
0answers
138 views

Ubuntu (server): No network interface

I got a VPS from weloveservers.net yesterday, and it cannot ping any IP address, and I cannot use the apt-get and wget commands. After trying to figure out the problem for a while, I found that the ...
1
vote
2answers
2k views

How to control the up order of network interfaces?

I have /etc/network/interfaces as follow. Every time the system boots up, the route is wrong so the gateway is not reachable. I'd have to ifdown br0 && ifup br0 to fix the route table and make ...
4
votes
1answer
47k views

Trying to configure eth0 and eth1 but Failed to bring up eth1

Trying to do below on Ubuntu 12.04. Trying to configure eth0 and eth1, eth0 works fine, but failed to bring eth1. Below is the settings /etc/network/interfaces: auto eth0 eth1 iface eth0 inet ...
1
vote
1answer
144 views

How to use wired and wireless interfaces simultaneously?

When creating any socket, we don't provide a device name (like eth0, or wlan0). On my laptop, I have a wired interface (eth) and a wireless interface (wlan). I want to run one process on each ...
6
votes
3answers
1k views

Network bonding isn't working correctly

Hey guys I'm having trouble setting up Ubuntu Bonding, following this guide. My interfaces file looks like this: auto eth0 iface eth0 inet manual bond-master bond0 auto eth1 iface eth1 inet ...
3
votes
2answers
3k views

How to rename an Ethernet interface?

As my built-in NIC was not supported by Ubuntu out-of-the-box I was forced to use a USB NIC for temporary installation-time Internet connection. And the USB NIC has taken the eth0 name making the ...
4
votes
2answers
3k views

How do I find what kernel module is behind a network interface?

How do I find out what kernel module is used for any given network interface?
6
votes
1answer
1k views

How is the loopback device implemented?

The loopback networking interface is a virtual network device implemented entirely in software. But how is this implementation actually accomplished and how do you manipulate it? As far as ...
1
vote
2answers
712 views

How to configue a DNS server statically?

I am setting up an Ubuntu (12.04) Server with a single statically-configured network interface. Every time I reboot /etc/resolv.conf seems to get reset to empty. Where can I put my DNS server address? ...
1
vote
1answer
483 views

Force real network usage - disable loopback interface for applications

I am trying to test some network properties with a (partially self written) tool chain. As I would like to use one device with two WLAN adapters / interfaces, I have to prevent communication over the ...
0
votes
1answer
209 views

Problems compiling Wireshark from Source (SVN) during .calling /configure

Today I've tried to compile Wireshark locally (no make install) from SVN as I've done before. When I call .configure I receive an error, that the file gtk/doxygen.cfg.in was not available: ...
0
votes
1answer
711 views

aufs Root File System On Usb Flash

I configured aufs as a Root File System On Usb Flash Drive by this article. So the first brunch is real root FS and it is read-only. The second brunch FS is in memory and it is read-write capable. ...
2
votes
2answers
2k views

Wireshark problem. Can't select default interface [duplicate]

I downloaded Wireshark from the Ubuntu 11.10 software center and when I start it and want to select default interface for capture in the list of interfaces are blank. I can't select default interface. ...
0
votes
1answer
878 views

Restarting the IPv6 network stack without restarting the IPv4 network stack?

In Ubuntu I use SSH to log in to my webserver. The IPv4 side of things is configured and already works, I can log in from other machines. But I'd like to configure the IPv6 side of things while I'm ...
2
votes
1answer
1k views

how can i turn network interface (localhost) on?

localhost is off on my machine. it's described in my /etc/network/interfaces: auto lo iface lo inet loopback auto eth1 iface eth1 inet dhcp but when i run route route -n" with wireless off I ...
2
votes
1answer
635 views

Using two ethernet connections (Internet enabled) simultaneously

I have searched and read over the Internet and also on askubuntu. I am using Ubuntu 11.04 and my question or the thing that I want to achieve is efficient use of both the connections and thus ...