Questions tagged [network-interface]
The network-interface tag has no usage guidance.
200
questions
2
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1
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On Linux I cannot bind to wireguard network interface via IP, but can with interface name
I have a WireGuard connection on my computer that I wish to only bind certain programs to. Programs that bind via the interface name (wg0 in my case) bind correctly, but programs that bind via ...
0
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0
answers
31
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Bind different instances of a program to different Eth/Usb ports (Windows)
For my job I connect a target system to my Win11 laptop via Ethernet cable, then analyze it with 2 proprietary programs. I often analyze multiple systems per day, so I'm looking for a way to do them ...
1
vote
1
answer
4k
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How NIC and ring buffers work?
I want know how network interface card and ring buffers work?I think ring buffers can be mapped into memory..RX ring and TX ring... then,how it works with input and output signals and registers?Please ...
1
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1
answer
4k
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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 ...
0
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1
answer
109
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How to use Linux ip utility to determine interface sending to IPv4 multicast group?
I have a Linux multicast application that will send to multicast group IPv4 address 232.1.1.1 and I want to know which local interface it will use by default. I believe the ip(1) utility should show ...
2
votes
1
answer
283
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Routing table behaviour coupled with bound sockets - unexpected behaviour
Problem
I am experiencing some rather odd behavior where a seemingly unrelated default gateway route is having unexpected side-effects. I managed to replicate this issue with a minimal example. The ...
1
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1
answer
4k
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Ubuntu Server 11.10 interfaces file unreadable
I am configuring ubuntu server 11.10 to go from dhcp to static and whenever I try to restart my networking manager, I get the error:
command ran:
sudo /etc/init.d/networking restart
output:...
0
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1
answer
548
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tp-lik monitor mode error
I have a tp link usb network adapter and when I tried to enable monitor mode, I got something saying SET failed on device wlan1 ; Invalid argument. as I used iwconfig. Later on I found this link to ...
5
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2
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19k
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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 ...
1
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1
answer
52
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How can I select only the basic Ethernet interface ipo Virtual Ethernet or other interfaces in a batch with WMIC NICCONFIG?
I have a small subroutine giving the description and index of the network interface called 'CARTE', so when called with %CARTE%=wireless, it returns the correct index of wireless interface (2), but ...
1
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0
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170
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pfsense routing table: link vs interface
Here is my pfsense IPv4 outing table (netatst -r):
Destination Gateway Flags Netif Expire
default 192.168.4.1 UGS em0
127.0.0.1 link#4 ...
1
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2
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791
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Determine which IP address will be used for default route in Powershell
There could be multiple addresses of one Network Interface Card in Windows, such as global unicast IPv6 addresses assigned via DHCPv6, SLAAC, temporary IPv6 or manually, etc. At the same time, there ...
2
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0
answers
104
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Interface restart causing unpredictable network behaviour (Ubuntu 18.04)
In my server, I have 2 public interfaces with 2 public IPs and 1 has private IP too.
eno1 - 149.20.185.126 (public), 10.2.2.2 (private)
eno2 - 149.20.185.54 (public)
For some other work (DPDK bind) I ...
0
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0
answers
76
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specify target interface on for ssh tunnel on the other endpoint
I want to configure/maintain two routers on different networks, but both are directly connected to a raspberry pi. The configuration should then happen remotely through a tunnel via that RPi.
One ...
1
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1
answer
1k
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Windows DNS - force local DNS lookup for local domain when using VPN
I have a home network that uses an internal subdomain of a domain that I own, int.example.com. The DNS servers on this network are a pair of Raspberry Pis running Pihole, which refer lookups for *.int....
1
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1
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3k
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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 ...
0
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0
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82
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OVH new IPv4 address
I have an OVH dedicated server (under Debian 10) with the main IP "149.xxx.xxx.xxx".
I bought a Fail-Over IP and I want the server to take into account this new IP, "58.xxx.xxx.xxx"...
0
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1
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6k
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Finding the MAC address of my router's WAN interface
As I understand, a router has at least two network interfaces: LAN and WAN. The IP address of the LAN interface is private, and the IP address of the WAN interface is public.
Is the IP address of the ...
2
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0
answers
768
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Virtual Machine (interface enp0s4) not assigned dynamic IPv4 address
I have a Ubuntu Server 20.04 virtual machine running on my FreeNAS 11.3-U5 box.
My problem is that my virtual Ubuntu Server is not being assigned an IP address.
I have an Edge Router X with Subnet 10....
2
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0
answers
1k
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How do I put the state of my tun interface to up? My tun interface is not receiving packets
Here are my command when I set up the interface:
ip tuntap add dev router0 mod tun
ip addr add 10.0.0.138/24 dev router0
ip link set dev router0 up
Here is the output of ip addr show dev router0
8:...
0
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1
answer
1k
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Can’t take network interface down on Ubuntu 20.04.4 LTS
I'm trying to change my WiFi MAC address following this article:
https://www.linuxshelltips.com/change-mac-address-linux/
After taking down my network manager, when I try to take down the network ...
1
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0
answers
206
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Hostapd only starts when second network adapter is disconnected
I run hostapd and dnsmasq on boot to start an access point. This works when I don't have a second network adapter connected. But when I boot with an extra adapter it doesn't start.
It seems like the ...
3
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1
answer
1k
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iptables - percentage sign followed by an i (%i)
I have this iptables rule that comes with my autogenerated wireguard config as a postup rule. I tried to figure out each step of the rule. But neither the manual or a search engine would tell me what ...
0
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0
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2k
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How to permanently set priority for network interfaces in Ubuntu
This is Ubuntu 18.04.
I have two network interfaces (wwan0 and wlan0) and I want to know if there's a way to set the priority of wlan0 if both are available.
Now I've found out about setting the ...
0
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0
answers
2k
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Rename WiFi interface
How to rename WiFi interface on debian
root@debian:~# ll /etc/systemd/network/10-persistant-wlan0.link
-rw-r--r-- 1 root root 55 Jan 18 12:45 /etc/systemd/network/10-persistant-wlan0.link
root@debian:...
0
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3
answers
13k
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Interface Eth1 not visible in Virtual Machine
I am new to linux networking. Basically I wanted to use eth1 interface of my PC in VirtualBox but I simply don't find the eth1 interface. Below are the ifconfig and sudo ifconfig eth1 outputs. Please ...
0
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0
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1k
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How to delete a Windows network interface?
I don't know why but I have several network interfaces that correspond to the Microsoft Wi-Fi Direct Virtual Adapter :
Carte réseau sans fil Connexion au réseau local* 11
Carte réseau sans fil ...
4
votes
2
answers
2k
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What does "Current message level: 0x00000033 (51)" mean?
There is a similar question here What is the "Current message level"?
Reference linked in the answer there doesn't mention this 0x00000033 (51) value.
Here is the complete output of ...
1
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1
answer
145
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Killer RJ45 cable for Polycom SoundStation 2?
I was working from a conference room, and because the Wifi was dropping, I ended up unplugging a Polycom SoundStation 2 and connected the RJ45 terminated cable into my laptop. I thought that at best ...
0
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0
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78
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why can IPv6 ping reach other interfaces?
I have an eth interface setup with VLAN 100 & VLAN 200. I have a client that sends pings on VLAN 200 only.
For some reason, it lets me ping the VLAN100 interface IP from the client but only if I ...
5
votes
1
answer
9k
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Can i see my Bluetooth connection as network interface in Linux?
I have 2 laptops. I have paired them successfully 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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1
answer
32
views
Host with identical ips and subnet mask different
Two host with following IP’s. How they will communicate.?
With and without a router.
Case a. 1.1.1.1/24 & 1.1.1.2/24
Case b. 1.1.1.1/24 & 1.1.1.2/32
In case a, they will communicate via switch ...
1
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0
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366
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Rerouting all traffics from one interface to another
I'm using linux. I have a device connected to the ethernet interface on my motherboard (enp0s31f6) and my PC has a wireless card (wlp5s0) which is connected to the router . The device is sending DHCP ...
0
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0
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249
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How to add/enable a new vNIC interface on linux
I want to configure vNIC interface (ens37) with a manual IP address - 192.168.16.1/24 on linux box
Currently I see ens33 configured. So this is another interface I want to manually add.
Any ideas how ...
0
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0
answers
2k
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Proxmox - Configure two bridges in a single NIC
I have Proxmox installed in two servers directly linked by a switch, I need to configure two different addresses in a specific NIC (that have a capacity of 10GB) for each server.
I tried many ...
1
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0
answers
949
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How to set the default outbound interface in Debian when using multihomed interfaces on EC2
In Debian 10 with an Amazon EC2 AMI (as of March 31, 2021), the /etc/network/interfaces file looks like this:
# Include files from /etc/network/interfaces.d:
source-directory /etc/network/interfaces.d
...
1
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1
answer
2k
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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) ...
0
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1
answer
45
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Is it possible to make that wifi-clients and lan-clients see each other on HG8546M router?
Now lan-clients ping other lan-clients and wifi-clients ping other wifi-clients.
If there's no exact answer, please guide me how to approach the problem.
1
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1
answer
96
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What's the fxp?
When I read this article:
fxp -- Intel EtherExpress PRO/100 Ethernet device driver
I have several questions about it:
I know Ethernet, but what's the EtherExpress?
what's PRO/100 mean? is the 100 ...
0
votes
1
answer
831
views
net-snmp (VACM): How to exclude IF-MIB::ifPhysAddress table column from view?
Tailoring an SNMP view for net-snmp 5.7.3, I fail to exclude IF-MIB::ifPhysAddress from my view:
What ever I tried, I still get the MAC addresses in snmpwalk.
Still I'm sure my view is being used as ...
21
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4
answers
184k
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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 ...
3
votes
2
answers
2k
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maximum number of NIC(Network Interface Controller) connection?
I'd like to know if there's maximum number of NIC connected in a Windows PC.
By expanding USB 3.0 ports and connecting a lot of USB 3.0 type network adapter into it,
can we connect limitless number ...
0
votes
1
answer
13k
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Where is network adapter state information stored in the registry?
Running netsh interface ipv4 show interfaces in cmd shows some network interface information, including the state (connected or disconnected). Is this information stored in the registry and, if so, ...
0
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1
answer
138
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Packets are not going to the correct interface?
After my application injects a packet with source 100.64.0.77 and destination 192.168.1.95 into the virtual utun2 interface, the packet is being forwarded to the en0 interface and sent to it's ...
2
votes
0
answers
109
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Unable to have Windows give priority to a specific network adapter
We have a Windows 7 PC with 3 network adapters (2 physical and 1 virtual):
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . :
IPv4 Address. . . . . . . . . . . : 192....
1
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0
answers
39
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In my situation, what would be the most reasonable way for me to be able to use my "real connection" on demand?
I have one computer, with one network port. I have no wifi. It runs Windows 10. It's connected (via the wall cables) to my NAT router and from that to the "fiber box".
I have OpenVPN ...
0
votes
1
answer
967
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Sending request through a specific network interface
I have two network interfaces wlan0 and usb0 on a RaspberryPi running Ubuntu. All of them are connected to the Internet.
I'm writing a python script to run a web server on wlan0. When a request is ...
29
votes
3
answers
41k
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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 ...
0
votes
3
answers
157
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How to rename interface in squashfs for a live system?
I am running a custom build Debian OS.
I have tried various methods to rename the Grub standard wlp3s0 to the more usable wlan0 in a live system in unpacked squashfs, including the widely suggested ...
0
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1
answer
404
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no interface to huawei stick
using a huawei usb stick on my linux mint works (out of the box) but on my ubuntu server it does not create an interface.
lsusb:
Bus 001 Device 016: ID 12d1:14dc Huawei Technologies Co., Ltd.
/var/...