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Ubuntu Network Interfaces Configuration: 2 Network Cards

Sorry for broad and ambiguous title. The case is: I have 2 Network Cards, eth0 and eth1. OS: Ubuntu: 14.04. eth0 is configured with static address: 10.1.1.1 and provides WIFI, DHCP and DNS services ...
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1answer
26 views

Ubuntu 15.10 server - nameserver config broken after reboot

After a reboot, I can't resolve any hostnames anymore. Well, the Ubuntu system, is running within an VMWare server, it shouldn't matter. The config under /etc/network/interfaces contains: auto ...
3
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3answers
225 views

Testing 10G Ethernet with two NICs?

I would like to test 10Gig Ethernet serial interface by installing two NICs(Network Interface Cards) on a pc and pinging. I have the following questions: 1- Can two separate NICs be installed in one ...
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0answers
29 views

How to find the IP address of the interface connected to the Internet on a Cisco device?

I have to subnet the Class B network of 128.0.0.0. I have already done the subnetting, but when writing out the interface IP addresses, I have no idea what that is for the router's interface ...
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1answer
55 views

Public static IP address for LXC container

I have a server running Ubuntu 14 (server edition), connected to a network using two network adapters. These two network adapters are configured in a bond to have network redundancy (in case one of ...
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1answer
48 views

Connect to multiple PPP interfaces with dynamic IP simultaneously

I have a web server that listens on eth0 and performs queries via multiple ppp0, ppp1, ..., pppN (these are 3G modems) interfaces during request. Is it possible in Linux to set up routing in a way ...
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0answers
59 views

Network device naming problems and aliases for p2p1 and p3p1 back to eth0 and eth1

I'm having a heck of a time getting the networking stack up and running on a Ubuntu Server 14.04.3 installation. (Its personal for the house and I'm not a SA, so I can't ask on SF because its a ...
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2answers
98 views

Use two network interfaces simultaneously

I often use Wi-Fi from some public networks which don't allow some protocols (like torrent or IRC - next I will only speak about IRC). If I want to use one of those protocols, I have to use my phone ...
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0answers
108 views

Why do different users get different IP via the same interface

On the same server, on root, I am getting the correct internet ip of the interface root@server:~# curl -s --interface ppp0 ipcheck.com 111.111.111.111root@server:~# However... If it's not super ...
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1answer
59 views

How to use multiple network interfaces?

I need to use multiple network interfaces in a C program with sockets. My interfaces are wlan0 and eth0. When I connect eth0, the ping through wlan0 returns "Host unreachable", and consequently the ...
0
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1answer
30 views

Disable DHCP for one interface only

On my PC I have one Ethernet port that I use for network testing purposes (testing Openflow switches). For that I want that port to only send the packets that I tell it to (using packet generator ...
1
vote
1answer
401 views

Run only specific /etc/network/if-up.d-script for specific interfaces

I would like to run a network script when bringing up a specific interface (e.g. eth0) by invoking ifup eth0 The script should ONLY run when bringing up eth0. My approach was to write the script ...
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0answers
18 views

Why are there so many network interfaces in OS X? [duplicate]

The ifconfig command prints this output: lo0 gif0 stf0 en0 en1 fw0 en2 bridge0 p2p0 vnic0 vnic1 Is it normal to have all these interfaces?
3
votes
1answer
925 views

Can WiFi repeaters cause interference?

I have a old Linksys router the I converted into a repeater using dd-wrt firmware. Its been running great but I'm just curious is it possible that it could be interfering with the main router?
0
votes
1answer
12 views

Move existing linux flash image to new board and maintain interface indexing

I wrote a small php application on a SBC. I created a disk image from the CF card. When I write the image to a new CF and install on a new SBC the interface index numbers (I hope I am stating that ...
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0answers
152 views

Why can we add virtual interface using `iw dev <devname> interface add…`

I knows that with mac80211 we can create multiple virtual interfaces on one physical device. From iw's official docs I found this could be done by these two commands: iw dev <devname> interface ...
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1answer
218 views

Clients from multiple subnets can't simultaneously connect to server

I have setup servers for several games in the past where either players from outside my local network could join, or players from within my local network could join, but not both at the same time. ...
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1answer
2k views

What is creating the utun0 network interface on OSX? What is for? What is it exactly?

What is creating the utun0 network interface on OSX? What is it being used for? What is it exactly? The interface only appears after connecting to the Ethernet or turning on the Wi-Fi and goes away ...
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1answer
78 views

How to change IP of VPN interface?

I have connected to a VPN on Ubuntu. and type ifconfig shows VPN interface has an IP of 10.10.0.11. Unfortunately, there is another computer in my lan whose ip is also 10.10.0.11 and they're ...
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2answers
82 views

What type of connector is on this NAS-like storage device?

I have a NAS kind of box, which I got it from my old office when they were moving out, at first I thought this was a simple Ethernet cable, but it is not. Any idea what this connection is? Another ...
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0answers
54 views

OpenWRT Network Configuration on Alix3d2

I've been working on an issue and I'm in need for some answers from experienced people in this field, I hope that answers will be rich since internet didn't serve me very well. Scenario: I have 2 ...
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0answers
16 views

Trying to detect why a certain program using a TUN/TAP devices disconnects my WLAN

I’ve got program which disconnects my wlan0 network. I would like to know why this network disconnects. I'm using wpa_supplicant for wlan0. The program which make me disconnect is attaching TUN/TAP ...
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1answer
71 views

Assigning a Public IP for RaspberryPi in local area wired network

We are trying to configure RaspberryPi with public IP (192.248.10.71) in local area wired network. This is the network configuration in /etc/network/interfaces, auto lo iface lo inet loopback ...
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1answer
25 views

Virtual eth-adapter in networking-configuration

I have on my Debian en eth0-interface and I need the interface to listen to other IP's. I know I can create it with the following command ifconfig eth0:1 10.10.10.20/24 With this command everything ...
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0answers
130 views

Setting up a tap interface on linux

I'm using Scapy to learn how to craft packets however I seem to be getting some interference from the kernel when trying to do some specific operations. I have been given some advice to use a tap ...
4
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1answer
4k views

How to make tap interfaces persistent after reboot?

Some tasks requires having tap interfaces configured + assign ownership. So, I am doing it manually: sudo tuntap -u <username> sudo ifconfig tap0 up sudo ip a a 192.168.1.1/24 dev tap0 or ...
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1answer
91 views

IPv4 interface number

I came across a question in Self Test Software for MS Exam 70-642 Which command adds route to destination server, with IP address 10.51.0.0 and subnet mask of 255.255.0.0. Next hop should be ...
0
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1answer
79 views

How to identify which USB devices are mapped to what network interface names?

When I plug in an USB network, it gets assigned a network name, like wlan1 by udev. Is there a way how to determine the mapping, without going through udev files, like ...
0
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1answer
1k views

How to delete loopback adaptor in Windows 7 using batch script?

I have created 10 loopback adaptors on Windows 7 using devcon devcon -r install %WINDIR%\Inf\Netloop.inf *MSLOOP I put this in for loop and every thing is ok but now I want to delete them using ...
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0answers
66 views

How to create new localhost interface in Windows?

In *unix you can write: sudo ifconfig lo0 127.0.2.1 up But how to do this command line in Windows?
0
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0answers
37 views

Setting up a preferred network interface in linux

I need to set up the network interfaces of a linux box running Ubuntu Server. The box will be deployed in an industrial vehicle and will operate headless (i.e. no monitor, no keyboard/mouse). The ...
0
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1answer
20 views

Will the network interface change between different operating systems?

I am interested to know if the network interface name (eth0, eth1, ..) associated with each physical ethernet card will change depending on what OS you use. If it is constant how does it assign the ...
0
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1answer
4k views

“airmon-ng start wlan0” will not create mon0

I have Ubuntu 14.04 LTS with a Realtek RTL8187SE Driver, RTL8180/RTL8185 chipset with aircrack-ng 1.1 and every time i enter "airmon-ng start wlan0". It says "monitor mode enabled" instead of "monitor ...
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0answers
539 views

Wireless_tools- iwconfig wlp5s5 no wireless extension

I have installed Wireless tools, GNUtls, Openssl, WpaSupplicant, Wget also, but I do not know if I need some library. iwconfig and the others wireless tools do not recognize wireless interface. I ...
1
vote
1answer
1k views

What is the “Current message level”?

What is the "Current message level" of an interface that ethtool provides? E.g. ethtool eth1 [Other stuff] Current message level: 0x00000014 (20) What is the message level? What is message ...
0
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1answer
72 views

A desktop PC connected to two network interfaces - what does that mean?

I am to create a network design draft where each PC is connected to two network interfaces. Well, what does it mean? That it could use network printer?
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0answers
112 views

A Printer that has multiple MAC Addresses?

I have a Lexmark printer that for some reason shows multiple MAC addresses when its connected to a switch. Thats so weird. Anybody had the same problem? How can I solve it and how come it has ...
2
votes
2answers
287 views

Is it possible to use the interface on a remote machine which I can SSH into?

I can SSH into a machine which has a wifi adapter connected, with interface wlan0. Can I use its interface (wlan0) on my client machine ? As an example, if I want to run iwconfig (or any tool which ...
0
votes
1answer
327 views

CE interface in Solaris 10 drops mac address (per ifconfig)

I recently installed Solaris 10 1/13 and proprietary TCP PEP software on a new hard drive within an old Sun v210. When the PEP software starts, the Sun's CE0 interface loses its "ether" address, ...
3
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0answers
623 views

ForceBindIP not binding (Alternatives to ForceBindIP)

I'm working on Win7 x64, and I can't get ForceBindIP to work. I know it's an outdated software, if you have suggestions for a replacement, I'll be really thankful. Issue: When I call ForceBindIP from ...
0
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3answers
8k views

How to find out total NIC cards and total available physical ports in linux

I need to find out how many total physical ports my server has, and how many of them are in use and how many free. Can you kindly help how to find it: This is what i find from dmidecode output: ...
2
votes
1answer
406 views

Disable IPV4 on one interface using CMD

How can i make the same ad unchecking box IPV4 on internet connection properties, but using CMD, netsh, or sth. what i can put in .bat file?
2
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1answer
2k views

setting up wifi for static ip on ubuntu 12.04

I want to setup dhcp and static IP I have 2 lan card, Ubuntu 12.04 and it is a laptop the wireless interface I want to give a static IP and lan to have a dynamic ip how should I go about making ...
0
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0answers
95 views

Replaying packets on local machine other than loopback

This might sound very wierd; but can I replay a pcap file on a interface other than lo in local machine? I want to get packets on lets say eth1. It is not attached to any link as of now. I want the ...
0
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0answers
46 views

how do you hook into a live stream of 802.15.4 packets? [closed]

Using a packet sniffer I am able to detect and successfully read a "hello word" payload within an 802.15.4 frame. It's great can see the frames in the sniffer, but now I'm at the point where I ...
4
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2answers
26k views

Use commandline to show disabled network interfaces in windows? (Mobile Broadband and Regular Connections)

There are a few ways you can list network interfaces via commandline. For example: netsh interface show interface netsh interface ip show interfaces ipconfig |findstr "adapter" For Mobile Broadband ...
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2answers
1k views

Difference interface priority and metrics in windows

I would like to ask what exactly is the difference between the priority settings of network adapters in the advanced settings window of the adapter settings (adapters and bindings, like mentioned in ...
1
vote
1answer
366 views

Only “lab” traffic over my Juniper VPN connection - all other traffic over normal Wifi/Ethernet?

How do I configure my Juniper VPN client to work like the Windows VPN client to not be the default gateway for all traffic?
1
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1answer
246 views

ubuntu setup network routing table

I have two interfaces: eth0 and wlan0. I want all traffic to go though wlan0 except for port 80 traffic that should go on eth0. Is there a way to setup the routing table so it does that? My current ...
0
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2answers
497 views

Debian randomly changes IP adress

I have debian6, interfaces are set manually: eth0 Link encap:Ethernet HWaddr 40:61:86:7c:42:ed inet addr:192.168.3.238 Bcast:192.168.3.255 Mask:255.255.255.0 inet6 addr: ...