Questions tagged [network-interface]

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Standard number of Network Interfaces on a Mac Mini

Any insight into this would be very helpful to me. I am using a Mac Mini 2011. I ran ifconfig to see the network interfaces and see three ethernet cards. Some are in promiscuous mode, although only ...
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en3 and hc interfaces when running ifconfig

When running ifconfig I see a few weird interfaces such as XHC20 XHC0 VHC128. From my understanding these are related to USB packet sniffing of some sort, however, I've never used wireshark or even ...
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41 views

ifconfig shows multiple network interfaces

When I run ifconfigon my Macbook air 2018 with MacOS Mojave 10.14.6 I get this: lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384 options=1203<RXCSUM,TXCSUM,TXSTATUS,SW_TIMESTAMP&...
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ifconfig shows a bunch of network interfaces [duplicate]

When I run ifconfigon my Macbook air 2018 with MacOS Mojave 10.14.6 I get this: lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384 options=1203<RXCSUM,TXCSUM,TXSTATUS,SW_TIMESTAMP&...
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22 views

nmcli listing interface as disconnected although it is in use

nmcli lists wlp2s0 interface as disconnected and that bewilders me, because I am browsing the Internet normally via wireless and I have no other wireless interfaces. Also, route confirms that the only ...
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39 views

Windows 10 custom interface metric reset on reboot

I have a windows 10 machine with multiple network interfaces, including virtual interfaces for VirtualBox guests. For whatever reason, Windows sets "Guest Only" interface to have the lowest metric ...
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30 views

Bidirectional static IP for LXC-Container

currently I am trying to get my networking with LXC-Containers to work. I have two IP´s: the IP that came with my Server - lets say: 1.1.1.1 ("IP-1") and one that is routed to the same interface - ...
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33 views

Fluxion disconnecting all network interfaces

I am running Kali on a Raspberry Pi. I have 2 WiFi interfaces connected to the Raspberry (one is the internal WiFi of the Pi & one is Alfa network's AWUS036NHA). Now, I am able to run Fluxion on ...
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54 views

Difference between Network interface vs link

(*) Sorry if this question seems to be trivial for some people. I'm not sure I understand the term link and its relation to network interface (physical/virtual). As far as I understand, link is the ...
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259 views

How to set the network interface in the Alpine WSL linux

I use Alpine WSL (v. 3.9.0) from the Microsoft Store. I can’t start the nginx service. I have a network problem with loopback interfaces. Immediately after installing linux I did: su root apk update ...
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1answer
325 views

decapsulating unicast VXLAN packets to a VXLAN interface

I am trying to evaluate a new virtualized traffic mirroring service (similar to SPAN) that delivers VXLAN encapsulated packets to a destination of my choice using the traditional VXLAN UDP unicast ...
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Unable to reach localhost (High Sierra)

Started running into difficulties with my MBP running high sierra after a forced reboot (crash) earlier today. My issue basically boils down to this: After a reboot, I'm unable to establish a ...
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Using loop back interface to send and listen to tcp stream?

I am currently working on ubuntu 16.04. I had a question about the local loopback interface . I have two programs . Program A sends , a stream of data (pcap) files using tcpreplay tcpreplay . Program ...
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6k views

Wireless headphones interfere with Wi-Fi signal on laptop

I have Medion MD 84299 wireless (not Bluetooth) headphones and they work totally fine. The problem is that once I turn on the headphone’s base station, Wi-Fi signal on my laptop becomes poor and ...
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1answer
52 views

Respond to ping from different interface than inbound interface in Linux

I'm trying to figure out if I need further configuration to allow outbound traffic to work on a different interface than inbound traffic. My setup is two servers. Server1 has eth1 on VLAN100 and ...
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1answer
54 views

Bonded interface with interfaces from separate VLANs in Linux

If I have two interfaces (eth0 and eth1) on separate VLANs (100 and 200), can they be bonded together into bond0 in such a way that traffic for each VLAN can be routed correctly? Let’s say the subnet ...
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How can I run a service for multiple VLAN's?

I have a running server hosted on 192.168.254.1 with some VLAN's which can be accessed by each one from 192.168.(TAG).1. I'm trying to run a service on a second computer physically connected to the ...
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1answer
25 views

Explicitly setting 'iface inet dhcp' for Ethernet disables the interface

I'm currently using an Ethernet connection, which has no configuration in /etc/network/interfaces, and is (presumably) using DHCP as specified by the router, in order to be assigned an IP address. ...
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IFTTT cannot take subheadings from RSS, coded in XML 0.1

The web app » IF THIS THEN THAT « doesn't seem to have an "ingredient" for the text right below the headline. Here is the code of the existing ATOM (RSS) Feed: <?xml version="1.0" encoding="UTF-...
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How to operate two hostapd adapters concurrently

I have a computer set up to run a hostapd wireless network on one wireless network card, and to connect to the internet on another wireless network card. This all works as expected. I am trying to ...
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Wireless adapters no longer interfacable

In the process of setting up a server I followed these two tutorials: https://seravo.fi/2014/create-wireless-access-point-hostapd https://community.openhab.org/t/setup-your-own-openhab-cloud-...
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How to download a file from ftp through a specifc network interface?

Simple question but I fail to find the answer anywhere. I have several files to download and 3 different isp all of them being directly plugged to the computer. As this is for very large files, I’d ...
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29 views

Certbot DNS Bind Address?

Is there a way to execute certbot such that the outgoing IP will be one of a set of interfaces on the machine instead of the default interface? One of the messages certbot gives when using: certbot ...
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1answer
287 views

How many IP address can be assigned to one network interface

How many IP addresses could be assigned to one network interface at the same time? Are there any limits? Could user assign half of /8 subnet addresses to one interface and another half to another ...
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1answer
16 views

How to connect to an interface hosting a virtual network on Linux

I am running VMware on a Linux host. The virtual machines on this network are connected via NAT, which as I understand means that my Linux host is acting as a router/DHCP server and leasing IP ...
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28 views

Why are forwarded ethernet packets are being rejected at the endpoint?

I have an ESP32 wroom32 that has WiFi internally and an ethernet port. I want to be able to connect my phone to the WiFi and access a webserver running on the ethernet port. Schematically this looks ...
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242 views

Remove IPv6 address from interface

How can I remove redundant addresses from network interface. I have a bunch of unnecessary ones, temporary and usual ones I do it like this netsh interface ipv6 delete address interface="Wi-Fi" ...
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62 views

Forward squid connected client internet requests on eth0 to wlan0

I have a Squid proxy server on ubuntu that is connected to LAN through eth0 (which also has internet access) and an internet connection wlan0. eth0 assigned IP is 192.168.0.48, gateway is 192.168.0.1 ...
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45 views

Many issues setting the default gateway on boot-up

I am using a BeagleBone embedded computer running Debian. I have two network interfaces : A connection to a cellular modem over USB which uses ppp and connects to the outside world. It receives a ...
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48 views

Can't assign ip address to veth directly after creating veth pair

If I run the following, then the ip address doesn't actually get added: ip link add veth0 type veth peer name veth1; ip address add 10.0.1.2/24 dev veth1 However if I sleep in between the commands, ...
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25 views

Configure Network Interface

When displaying configuration, i've found this configuration on other sample network. How do I apply this configuration to another PC? set interface interface="Local Area Connection* 9" forwarding=...
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328 views

Raspbian: eth0 keeps IP address when ethernet cable unplugged

When I boot up my Raspberry PI running Raspbian 9 while it's connected to ethernet, eth0 is not seen as disconnected when I unplug the device. So if I do ifconfig after boot (with wired connection) ...
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2answers
550 views

Change IPv6 temporary address interval? Generate new IPv6 address?

1) On Ubuntu / Debian systems, how do you change the temporary ipv6 address interval? The time duration it takes before the system generates and changes the ipv6 addresses? 2) How do you manually ...
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258 views

Why I cannot ping IP address after I bridged it to br0 interface?

I have bridge eth0 and wlan0 to br0 interface. And it works just fine, my phone can use website by connected wifi AP. However, If I tried to ping br0 in my machine, I can not ping. Here is what I ...
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1answer
2k views

Ubuntu vm: No network interface, no UI

I have an Ubuntu VMWare virtual machine that stopped having an internet connection after a forced a shutdown. Upon inspection there were no connections in the Network panel of Settings. I found ...
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1answer
75 views

How can I get the maximum network card capacity

I want to be able to know what is the maximum capacity of my network card in my Ubuntu 18 machine. I use sudo nethogs and gets output like: NetHogs version 0.8.5-2 PID USER PROGRAM ...
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2answers
689 views

What is “internal” and “external” network interface?

Lets say, I have to set up an internal and external network interface in an Ubuntu VM. There will be another Ubuntu VM for some other purpose. Both VMs are connected (they can ping each other) in ...
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1answer
7k views

Problems using FortiClient VPN connection

It all started two days ago and I am still unable to find a possible cause of this problem. When I start the VPN from the FortiClient it connects to my endpoint apparently without any problem, but ...
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1answer
2k views

Kali linux no internet in terminal but browser works fine

Kali linux 2018 amd64 in VM Workstation Since the last few days, I cannot connect to internet in terminal. Internet works fine in tor & firefox browser, but I can't make an update in terminal. I ...
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1answer
62 views

How to trick a Linux program into “seeing” just the loopback network interface lo0?

The title says it all. I am trying to avoid the situation when a program detects the IP of a network interface and sends it to a remote location. I am thinking to do this by tricking the program into ...
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1answer
49 views

DHCP timeout when connecting over managed switch

NetworkManager DHCP times out when I am connecting via my Netgear GS108T managed the switch. This switch is running on factory settings, and expect it to act as an unmanaged switch for the moment. I ...
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1answer
1k views

Unknown interface in Ubuntu 16.04

I want to refresh the network interface by turning it down then up as per some recommendations to get DNS updates. I listed the interfaces in my device using: ifconfig -a. I got 3 interfaces and I am ...
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1answer
396 views

Set default interface (can't connect to wifi after I set static eth0 configuration)

I am using Alpine Linux. I was able to connect to wifi via wpa_supplicant until I set a static eth0 configuration making my /etc/network/interfaces file appearing as the following auto lo face lo ...
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1answer
4k views

Disable NIC interface permanently in RHEL7?

How to disable NIC interface permanently in RHEL7? The command: ifconfig -a should not show an interface after disabling.
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1answer
63 views

How do you know when an interface is out of bandwidth?

I'm uncertain about this, probably because my background isn't in networking, but in programming instead; I know how to setup a basic LAN and an OpenWRT router, but I don't really understand how to ...
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72 views

How to use ssh with two interfaces having ip from same network range but from different network switch

I have two network interfaces having IP as eth0:192.168.10.3 and eth1:192.168.10.5 . Both the interfaces are connected to different network switch. So is there any way to divert the ssh traffic to ...
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1answer
58 views

Internet connection lost after creating network bonds, but restored after rebooing in “emergency mode” on a RHEL7

I am a noob at networking, please forgive me if my terminology is not technically correct. I am facing a weird problem with internet connectivity on a RHEL 7 machine after creating network bonds. tl;...
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23 views

How to assign IPs in server interfaces when connected to two similar routers

I need to connect two similar routers with the IPs 192.160.2.4/24 and 192.160.2.6/24 (in the same 192.160.2.0/24 network) to 2 server interfaces (ports) in the same server as shown in the image. ...
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1answer
2k views

Force browser (Chrome OR FireFox) to use specific network interface

I need to be able to view pages of my website from outside our network. I need to be able to use separate nameservers as well. Ive found the easiest way is to just launch an SSH tunnel, then I can ...
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106 views

Binding to a specific network interface on a Linux server with multiple gateways

I'm trying to run a server program on my local machine. It has 2 routes to the Internet: 10.0.0.1/24 on eth0 is the gateway and subnet on the interface with the fastest connection; however, a ...