Questions tagged [networking]

For questions on connecting devices together so that they can communicate with each other, as well as questions on networking equipment such as routers and switches.

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How can I isolate the network connectivity issue on a device?

I have looked at this post and it's pretty much describes my problem: How to diagnose problems with wifi connectivity? My problem: A corporate laptop, home office, WiFi connection, losing network ...
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How to setup a second wifi access point and set static IP

+-----------------+ +----------------+ | Laptop | | Router 1 | | |----Wifi----| with internet | | Windows 10 | | connection | |...
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QEMU: slow network performance with virtio_net driver

I'm running KVM/QEMU 7.2.0 with Linux for both host and guest (kernel 6.1.6 on x86_64). For the virtual networking, I'm using bridge device on host to which guest attaches its NIC as tap device. In ...
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Losing connection on my main router when unplugging the secondary router's ethernet cable

I have two routers. One is my main router which has internet connection. The second router is connected to it with an Ethernet cable to extend connections in my house (LAN to LAN), as for the settings ...
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How to trick Windows into believing there is internet connection

I am a security analyst and I need to assess a Windows UWP program. I have a virtual machine with no internet connection and machine that will answer all requests to the first machine (this second ...
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Network interface still negotiates 10 Mbps link when computer is down

I have a PC (Windows 10) that, when powered off, still negotiates a link with the switch at 10 Mbps. As soon as the host is up, the speed is renegotiated at 1000 Mbps. I was wondering what this was ...
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Kubernetes egress static IP. the most elegant and working solution?

Can someone tell me how you solved this problem in the most optimal and elegant way? There is a Kubernetes cluster with some deployments, some clients need to add our IPs to their whitelist so that ...
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Trying to find out the best possible network setup to allow IPSec tunneling between networks through Cisco router and DreyTek network device

I'm trying to find out the best possible network setup for my test SOHO network. My goal is to create a create IPSec tunnel between my network (192.168.68.0/24) and a remote network. The main reason I ...
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Steps to analyse network issues

I have total strange and somehow random network issues since a firmware update of my router. The thing is that I notice that some streaming services and voice assistants aren't working well. They are ...
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Can someone please explain to me how ip addresses work with vpn?

Recently I've been wondering how the ip's of a vpn work . Are they recycled? If yes isn't issue using them? Thank you
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What's a safe network file system protocol that I can expose to the public internet?

I have a home DIY NAS (Debian) that I occasionally use from remote devices. The NAS has an SMB file server and currently I access it remotely by using SSH (private key encryption) and SSH port ...
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How to be connected to a private network through WIFI, but not connected to the internet

I have a WIFI router that provides me with wireless internet. Several computers and devices in my home are connected to the internet through this device. Now, let's say I have a computer with Win 10, ...
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NAT setup on Proxmox

I'm trying to set up NAT on Proxmox VE 7.3-4. I followed this guide but changed the IP range and didn't do any port forwarding yet https://bobcares.com/blog/setup-nat-on-proxmox/ I edited /etc/network/...
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Connect Ubuntu server to Windows PC directly by LAN cable

I work in the data processing field which requires a lot of Computational power(CPU) and RAM. I currently have 2 PC: Main PC (Windows) - Screen + GPU + Peripherals Local Server (Ubuntu) - No Screen/...
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DHCPv6 Options for Network Time Server

While for DHCPv4 there appears to be exactly one option to specify (S)NTP servers, namely 42, DHCPv6 seems to offer two separate ones: OPTION_SNTP_SERVERS (31) uses the same configuration format as ...
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How can I share non-internet printer using PC that is USB connected to the printer?

How can I share a non-internet printer using a PC that is connected to the printer via USB? I have this printer (Brother HL-L2310D): I want to share my printer with devices connected to my local ...
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Enabling VPN for wireless hotspot connection only (Windows 10)

I'm trying to keep my desktop Windows 10 computer using a wired, regular non-VPN connection. But I also want to setup a WiFi hotspot that my other devices can connect to that does use a VPN. I have a ...
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MacBook can't access internet

I have a MacBook that is connected to Wi-Fi but it can't access the internet. It can still ping servers like Google's 8.8.8.8. Does anyone have any clue as to what's happening? It just started ...
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Change all rules in iptables when changing IP address

I have a network gateway system using iptables to allow/deny traffic to/from an internal network. I have to manually add and remove rules in iptables depending on the requirements of the entities in ...
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Is it safe to have public ip server with access to local network?

I have server (vpn) with public IP. This server also connected to the local network and provides access to this network for users connected via openvpn (openvpn hosted on this server). Let's say this ...
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localhost took too long to respond - ERR_CONNECTION_TIMED_OUT

In Windows 10, my application that runs on localhost stopped working after connecting and then disconnecting from the VPN (Citrix). Restart the app - doesn't help. Tried this without success: ...
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What are the key settings to configure when using two routers in a house?

I have a fibre connection, and two routers because of the layout of the building. Basically I go from Fibre > ONT > Ethernet > Router #1 > Ethernet > Router #2. Both routers are WiFi ...
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PC starts immediately after shutting down

recently my PC starts up again immediately after I shut it down or put it to sleep. This has been happening since I set up Wake on LAN. I'm convinced it's the LAN connection but I don't know how to ...
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RHEL 8 Consistent Network Interface Naming not Working for Add-In PCIe Network Adapter

I am using RHEL 8.0 on a machine with four 1 GbE network interfaces and two 10 GbE network interfaces. The 10 GbE network interfaces are provided via a PCIe add-in card. I am seeing that the two 10 ...
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How to make a ip address assigned printer non-discoverable using the printer settings

okay, I have static IP addressed networked printers, not on a print server but standalones. I would like to have these printers non-discoverable by all on the network, but I would also like them to be ...
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With GlobalProtect VPN I need to retry many times before connecting successfully

I am using macOS Ventura 13.1 (M1 Pro CPU) with GlobalProtect VPN 6.1.0-58. Once I establish the VPN connection it is stable and it's working fine. But the process of establishing the connection is ...
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Auto reconnect to multiple Wi-Fi networks

I have a PC with two network adapters connected to different Wi-Fi networks. It often drops one of the networks and doesn't attempt to reconnect to it while the other network is still intact. However, ...
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Node cannot access network inside ubuntu multipass

I have a multipass virtual machine (ubuntu 22.04.1) on my windows 10 laptop. I installed node v18.13.0 (now v19.5.0) through nvm on it. My node installation is not able to access the network at all. ...
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Send an UDP packet through SOCKS5 proxy in windows with specified local port

As we know SOCKS5 support UDP. So, how do I send an UDP packet to the UDP Server through SOCKS5 proxy with specified local port. Therefore, server will read source port of packet is same like local ...
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127.0.0.2 address ping reply is coming from 127.0.0.1

I have no idea what has happend in my windows configuration. But when i ping address 127.0.0.2 address reply is coming from 127.0.0.1. This was not like this before and this is important to me as this ...
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Why can't I ping the Windows host from a VirtualBox Ubuntu VM?

On a Windows 10 machine I have a VirtualBox with Ubuntu using two Adapters, a NAT adapter and a Bridge Adapter, which is assigned to the "Windows Ethernet" adapter which I can ping from the ...
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Why does Windows 10 have a VirtualBox Host-Only Ethernet address I can ping, although I have not specified any Host-only adaptor?

I am using an Ubuntu 20.04 VM in a Windows 10 machine using two network adapters, NAT and Bridged. However, in the "Network Connections" of the Windows 10 machine, I see "Ethernet4"...
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Webcam and hotspot concurrent access?

I have a webcam that broadcasts it's own SSID for direct connection without a router, as well as a mobile hotspot. Is there any way I can have my PC connected to both concurrently? Webcam: MiWa MW3 ...
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SSH doesn't work through mikrotik

I have Mikrotik RB952Ui-5ac2nD. Everything is working fine. But now, I found little problem. I can not connect from LAN to any SSH in internet, but, when I'm connected without mikrotik, i havent any ...
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OpenVPN direct to Archer7 router IP address issue

I have an office location with an Archer7 router setup with VPN access. I use OpenVPN from home to access the router directly. On the office side of the router, the network is DHCP using 192.168.101....
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Ipsec Site-to-Site: I can ssh to the Target Network but not ssh from the target network, Iptables Troubleshooting

Since this is my very first Question here im still a bit green :) Following Scenario: Ipsec Connection with strongswan on a debian system between two Sites with each 4 Subnets site A: 10.0.0.0/24 10.0....
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How to configure a static IP address in the local network for a Ubuntu VM?

I am using a Windows 10 laptop connected to the internet via Wifi. On it I run a VirtualBox with Ubuntu 20.04.5. As I want to connect to the internet AND to the local network I plan to configure two ...
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SOCKS Proxy reverse with terminal commands passthrough

I want to establish a SOCKS proxy from computer A to computer B, however, computer A cannot talk to B directly due to firewall restrictions. I was able to establish a SOCKS reverse proxy from B so ...
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Local network between Parallels virtual Windows 11 and a computer in the Internet

I have following situation: A macbook (ARM, m1) running Windows 11 in Parallels, and a game running in that Windows 11. To play with my friend via the Internet I need to create local network Windows ...
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how do i setup linux proxy

I know this is a stupid question, but how in the world is the proxy set up in Linux. The network I'm trying to connect to is a proxy network and i point my settings to 192.168.49.1:8282. Now i cant ...
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Need advice for to set up TP Link Deco mesh in large house

I'm looking for help optimizing my mesh network. TP-Link support is less than helpful. See map of property below. I have the following TP-Link hardware: 2x Deco W6000 (AX3000 Wi-Fi 6 mesh) 3x Deco P9 ...
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Why Ubuntu prefers RA route to directly connected interface?

I have the following topology: There is 2 routers OTBR1 and OTBR2 that have an interface wpan0 connected to the same fd71:f19:d5f5:1::/64 network. They both advertise this route through RA on the ...
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No internet through docker [closed]

At my office's network I started getting this issue with internet access in docker last week. Here's what happens: ➜ docker run busybox nslookup google.com ;; connection timed out; no servers could be ...
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Does Factory Reset return to ORIGINAL firmware or to the last working firmware. (TPLINK ac1200 router)

on my router i upgraded the firmware to dd wrt now i hit the factor reset button and expected it to go back to the 'factory ui' etc but i still see dd wrt there on electronic devices like routers, ...
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Cable modem speed limitations

I have been doing some research on different modems and I am getting quite confused about some of the speed numbers in the product specifications. Below are some examples from Motorola modems. If you ...
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Can I change old router into bridge mode and connect new router to it to gain more control over my network

Since I want to build small server from old PC, I want to make it accessible from anywhere. My current router is rented from ISP and they blocked any access to admin panel. I can only change some ...
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Sharing Proxied Internet over Mobile Hotspot on Windows 10

This is how I use Proxy and connect to the internet in my laptop and what I do: LAN cable --> My Laptop ssh -D1111 root@my_server Set all_proxy=socks5h://localhost:1111 in both my user's env var ...
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Mapping subdomains to distinct computers on Lan

Assume I own a domain mynetwork.info. I mapped *.mynetwork.info to my public ip address given to me by my isp. Assume ip lease is static or long term. Question: when traffic reaches my router after ...
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Is it possible to replace internet connection with mobile hotspot while still retaining network topology (wifi router, DHCP, local LAN, etc)?

ISP service has been interrupted and we do have hotspot available, but I'm hoping we can somehow just swap the internet connection source to the hotspot with as little disruption as possible to local ...
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Accessing WSL2 from my LAN (Static IP?)

I want to access, from my LAN, services provided by the linux distribution installed into WSL2. Ok, I know how to remap ports on the host. My problem is that the Windows11 host assigns a different IP ...
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