Questions tagged [network-interface]

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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 vote
1 answer
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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....
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Can't ping my own interface but I can ping all other nodes on the LAN and VLAN

I have a small network(LAN). I can ping all VLANs endpoints and all HW endpoints. But for some reason I cant ping my own interface. What could be the reason for this? What have I done so far: -remove ...
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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"...
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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 ...
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How to redirect all Arp traffic to a specific interface?

in my scenario I would need to send all ARP replies that has dst_address = 192.168.101.2/24 throught the interface eth1. Is there a way to do it with arptables? Is it necessary a tc filter? How to ...
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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:...
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Turn back network interface in managed state in Ubuntu(22.04LTS)

How can I turn back Ethernet interface in manage state? Running nmcli d shows STATE unmanaged while wireless interface shows connected.
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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 ...
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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 ...
2 votes
1 answer
348 views

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 ...
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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 ...
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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:...
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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 ...
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1 answer
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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.
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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 ...
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2 votes
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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....
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3 votes
2 answers
1k views

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 ...
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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, ...
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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 ...
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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 ...
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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....
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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 ...
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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 ...
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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 ...
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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/...
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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 ...
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Can't configure network in kali

I can't configure the network in Kali Linux manually every time I assign an IP with Ifconfig eth0 192.168.1.100 Netmask 255.255.255.0 Default gateway 192.168.1.1 It gets configured and when I reboot ...
1 vote
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Pi 3 not connecting to Asus AC2900 Router with TP-Link Switch

I've tried replacing the cable and switching ports on the switch but the Raspberry Pi 3 still won't show as a client in my Asus router dashboard. I was able to directly connect the Pi to the router ...
6 votes
1 answer
4k views

10 Gb network card connection

I have just bought the intel X540T2 shown below and when I opened my machine I am not sure if I can plug it in any of the available PCIe slots shown below? If anyone could please advise
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Router unable to obtain IP

I own a d-link router model DSL-2877AL.. used to work flawlessly in the past 8 months but recently the routers internet light will always stay red which indicates a failed PPPoe negotiation.. VDSL2 ...
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1 answer
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Windows 10 PING returns "No resources." - why?

I often have this problem: C:\Users\user> ping 8.8.8.8 Pinging 8.8.8.8 with 32 bytes of data: No resources. No resources. No resources. No resources. Ping statistics for 8.8.8.8: Packets: ...
3 votes
1 answer
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Does VirtualBox' installation warning that it will "reset your network connection" mean theirs or in general?

When installing VirtualBox, it presents a warning that "Installing the Oracle VM VirtualBox Networking feature will reset your network connection and temporarily disconnect you from the network." But ...
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RTNETLINK answers: Cannot allocate memory

I have a simple XDP program and I want to load it on an interface. I'm on Ubuntu 18.04 with kernel version of 5.6.3-050603-lowlatency which supports XDP. My NIC is Intel 82599ES 10-Gigabit SFI/SFP+ ...
1 vote
0 answers
201 views

Why is scanning my network picking up the wrong Interface, mac, and ip address?

So I've just used an application to scan for pc's on my network as a shortcut for wake on lan. Two of the three pc's show up with spot on information in its entirety. The one illustrated in the ...
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3 votes
1 answer
2k views

Automate sharing Internet between network adapters on Windows 10

I use a VPN for my console, and I do this by starting a VPN connection on my laptop and sharing the VPN Internet adapters Internet with my Ethernet adapter. The issue is that upon reboot, errors ...
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Clone Linux system preserving/reconfiguring network interfaces

The problem When I clone a Linux OS on a different device (but exact same architecture), the ethernet interfaces will be called differently (e.g. device A: eth0, eht1; device B: eht2, eth3). It's ...
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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 ...
6 votes
1 answer
5k 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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4 votes
1 answer
2k 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 ...
2 votes
0 answers
272 views

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 ...
35 votes
4 answers
12k 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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