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32 views

Windows doesn't set interface metric properly

When I try to set an interface metric on a specific NIC , it doesn't work. When I check with netstat -rn they are completely different than ones I set. I tried enabling and disabling adapters but it ...
0
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2answers
27 views

USB Ethernet to my machine rather than RJ45 NIC Cards

I have a 7 node cluster setup in my organization and they all have dual port Ethernet NICs on them, running Ubuntu 14.04.4. Each machine is connected to two networks at the same time. Requirement: I ...
0
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2answers
23 views

Things That Affect NIC Cards' Performance?

Folks, I have a laptop and a tower. And I use EtherCAT (through Ethernet port) on both. But I notice that if I unplug my cables on the tower, I loose a lot of frames, where as in the laptop I may not ...
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1answer
13 views

Can i see my bluetooth connection as network interface in linux?

I have 2 laptops. i have paired them succesfully with each other via bluetooth, so i can exchange files between each other. Both of my laptops have linux installed. when i run the ifconfig command to ...
0
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3answers
9k 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: ...
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0answers
17 views

How to create alias interface in windows

How to create an alias interface which has a static ip co-existing with the regular broadband connection. The thing is I want to be in two network at same time. I have done this in Linux, but I don't ...
2
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0answers
443 views

Windows 7 gadget or app that shows stats on multiple network interfaces?

I am looking for a Windows 7 gadget or app that I can leave on my desktop/sidebar. While there are many gadgets that will display network interface info (such as current IP, gateway, etc), what I ...
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0answers
10 views

Is proxy traffic monitored by loopback device?

I understand loopback device acts like a mirror interface to my localhost. When I do ifconfig on my Ubuntu machine, I get this lo Link encap:Local Loopback inet addr:127.0.0.1 ...
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0answers
11 views

Run ethtool after boot

I'm running lmde 2, and My net card doesn't seem to be able to work with my modem unless I set it to work with 10 mbps. Currently I'm using the command: sudo ethtool -s eth0 speed 10 duplex full ...
-1
votes
1answer
40 views

How do I ensure a VPN is always used?

I'm running a VPN and wonder what happens if the VPN connection breaks. When I run ifconfig i see my default ethernet adapter at en0 and the VPN at utun0. All traffic is running through the utun0 ...
0
votes
1answer
27 views

Configure ethernet interface to accept unidirectional ethernet

With switches you can configure an ethernet port to be unidirectional. This gives you the ability to double your traffic capabilities. Can I configure my ethernet interface on a unix system to read ...
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0answers
51 views

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 ...
0
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1answer
119 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
votes
3answers
248 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 ...
1
vote
0answers
52 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 ...
1
vote
1answer
319 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 ...
0
votes
1answer
79 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 ...
0
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0answers
136 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 ...
2
votes
2answers
136 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 ...
3
votes
0answers
121 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 ...
0
votes
1answer
78 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
votes
1answer
38 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 ...
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 ...
1
vote
1answer
541 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 ...
0
votes
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
1k 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
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0answers
209 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 ...
1
vote
1answer
264 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. ...
0
votes
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 ...
0
votes
1answer
97 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 ...
0
votes
2answers
84 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 ...
0
votes
1answer
74 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 ...
0
votes
1answer
27 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 ...
2
votes
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
0answers
170 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 ...
5
votes
1answer
5k 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 ...
1
vote
2answers
880 views

How to create a virtual interface from a socks proxy?

I am wanting to create a network interface from a SOCKS 5 proxy on localhost. This will eventually be bridged with a wireless interface that I have which will be operating in AdHoc mode. This will ...
0
votes
1answer
103 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 ...
3
votes
0answers
661 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
votes
1answer
106 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 ...
1
vote
1answer
3k views

Install Ubuntu, eth0 not detected?

I have installed Ubuntu laptop Toshiba Satellite L640?, and I had difficulty, that is how to enable network interfaces, eth0 was not detected when running ifconfig.
1
vote
1answer
652 views

Does the physical interface name in Linux ever change?

When I see the man page for interfaces I see the below. Has anyone seen similar behavior, I had been using Ubuntu for some time and my net-books interface name has not changed for ever. The ifup ...
0
votes
1answer
1k views

Easy persistent network config on ubuntu server

I'm having some problems configuring a static IP on my ubuntu server. What is the easiest way to configure IP, netmask, nameserver and default gateway on eth0? I've tried modifying the ...
2
votes
2answers
10k views

Restrict SSH to one interface

How can I restrict incoming SSH connection request to only one interface? I'm using Ubuntu Server 10.04 LST. I want to lock down access to SSH to only one interface because I use the server as a ...
2
votes
2answers
1k views

List network interfaces on a Ubuntu machine

How can I get a list of the network interfaces on a Ubuntu machine including wired and wireless?
2
votes
1answer
829 views

routing a secondary IP-addr. of a different private network on the same interface

Typical home-networking xDSL setup on a TG782 router/gateway. Hosts on the local private network are allocated IP-addresses in the range of 192.168.1.0/24 and can get to WAN through the aforementioned ...
1
vote
2answers
1k views

What does mask 0.0.0.0 mean when it's assigned to a network interface?

Suppose I use ifconfig or some similar command to setup my network interface, and I assign 0.0.0.0 to the mask parameter. Does it have a special meaning? What implications could this have?
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vote
2answers
3k views

Set up Ubuntu server as router

I just installed Ubuntu 10.04 LTS server on a old desktop PC with a dual port network card I would like to use as router for my home network. How do I have to set up the interfaces so that the ...
3
votes
1answer
5k views

How can I ensure outbound traffic uses the same interface as that of inbound traffic in Linux?

I have a Linux box with two interfaces: one for data and the other for management purpose. If both are on the same network, I have a route added for both interfaces. Imagine the routing table is: ...
1
vote
3answers
1k views

Permanently down/disable network interface in opensuse

I have two wireless cards in my computer. One bad one that cant be removed and one good one the I actually want use. Opensuses network manage automatically loads both and switches between the other ...