Questions tagged [router]

Questions about running a UNIX-like OS (typically Linux) on wired and wireless routers, including flashing, creating, and configuring custom firmware.

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How to setup a dedicated NordVPN router and gateway on linux?

The problem is this: The only officially supported router configuration for nordvpn is to use a static config file and openvpn. That doesn't work for me. The question: Using linux, how does one setup ...
theOtherLukeN's user avatar
0 votes
1 answer
50 views

unable to connect to internet via router

I'm on Dell Latitude 3420, Devuan Daedalus GNU/Linux (based on Debian Bookworm, without systemd), I connect to internet via mobile hotspot (using Android Phone's mobile data) at home and through a ...
vrgovinda's user avatar
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1 answer
67 views

Ubuntu router using nftables blocking traffic

I'm trying to set up a simple router in Ubuntu. There are two network interfaces: eth0 - a wired network interface connected to the internet, and wlan0 - configured as an AP with IP address 10.0.9.1. ...
Martin Claesson's user avatar
0 votes
1 answer
232 views

How to force update NTP date/time on a router?

The log of an Asus router with Padavan firmware (might be similar to OpenWrt) showed: Dec 4 16:06:20 NTP Client: Synchronizing time to 0.nl.pool.ntp.org. Oct 24 18:18:18 NTP Client: System time ...
Pro Backup's user avatar
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31 views

Find out what MAC addresses are connected to each physical LAN port of router

I'm managing a router running Linux 3.10.87-rt80-Cavium-Octeon On the router's GUI, there's a "Switch ports" page where I can see all ethernet ports (4 LAN - 2 WAN) and their corresponding ...
mariano-daniel's user avatar
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0 answers
48 views

How to pause WLAN interface in linux?

I am working on a project with a Wi-Fi router (TP-Link) installed with dd-wrt firmware. A latop is directly connected over eth port with the router (as an adminsitrator who controls the router over ...
SAM's user avatar
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23 views

Network Connectivity Issue: Unable to Ping two VMs on eth1

I've configured two VMs and assigned them to the eth0 and to the eth1 interface. However, I'm encountering connectivity issues as I'm unable to ping between two VMs using eth1. I've verified the ...
Simon's user avatar
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Playing Music through Sonos Speaker connected to ETH Raspberry Pi

I have a Raspberry Pi Wifi-to-Ethernet bridge, and have a Sonos Symfonisk speaker plugged into the Ethernet output. In it's current configuration I can't play music through the speaker, is there a ...
cdubs's user avatar
  • 103
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1 answer
55 views

Forward IP-address to server behind Turris Omnia

A few years ago I setup my Turris Omnia to forward an external IP-address to an internal server. Unfortunately I have forgotten how (or maybe Turris Omnia changed the interface).
Ole Tange's user avatar
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1 answer
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How to set up two NICs in same machine different subnets and route from one to the other?

I have a computer (RPi CM4) with two NICs. I want one (eth0)set up on network 1 and the other (eth1) on network 2. I need to be able to see computer on net2 from net1. I have eth0 set for 192.168.1.x/...
evanmars's user avatar
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117 views

Router configuration. Sharing the same network over two interfaces

I have a router, R, and two hosts, A and B. They are all running Ubuntu 22.04. I have both physical access and necessary permissions to all machines involved in the setup and I would like to ssh from ...
UserK's user avatar
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48 views

Can't ping hostnames and IPv6 after router restart

This happened after a router restart. (no idea if this is relevant but my Windows PC also reverted the DNS settings to an old local server I tested) I noticed the issue when I ssh'ed to my homelab ...
Kevin Van Humbeeck's user avatar
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176 views

Alternative to LibreCMC/OpenWRT that is easier to upgrade?

I use LibreCMC (based on OpenWRT) for my wifi router, and I really hate it. Every time I upgrade, everything breaks, and I have to manually log in and fix everything, by hand, and remember what I did ...
Robin Green's user avatar
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367 views

router command to change bandwidth limit for a MAC address

I use DD-WRT to limit WAN bandwidth to one MAC address using DD-WRT's web interface. The key entry in the web interface (in "NAT/QoS" tab's "QOS" tab) is "MAC priority", ...
bobuhito's user avatar
  • 123
2 votes
1 answer
748 views

Cannot get IP forwarding work in docker container

I am wanting to set up a playground to test some nftables firewall rules before I put them on a real router. Docker containers seem to be good lightweight instrument for this. A prerequisite of this ...
Greendrake's user avatar
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206 views

Can I access Eero router settings through Linux

so we have a Linksys router and a eero router connected to our internet. My stepdad won’t give me the password to the eero and keeps blocking my phone and computer from accessing the router just to be ...
22apk87's user avatar
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37 views

Does DHCP on dd-wrt support the absence of the default route?

I have one reason to flash dd-wrt onto my router (rt-ac66u), which is to be able to not assign any default route via DHCP. The stock firmware doesn't seem to be able to do this. Dd-wrt appears to be ...
Andreas's user avatar
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1 vote
1 answer
769 views

Problem IPV6 DNSMASQ with only DHCP/DNS servers (OpenWRT)

I've set up DHCP ... and so far so good. The problem is when I try to connect a device. I did a test with Linux and each time it only sets me 1 DNS (i have set two dns server in DHCP server). It also ...
vincenzogianfelice's user avatar
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65 views

IPforwarding for gateway not allowing certain software installs

I have a pi gateway I ultimately want to use as a VPN gateway but I'm having some issues with it being a normal gateway right now... Currently my set up is the following: Laptop > (eth1 169.254.169....
ISE7's user avatar
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1 answer
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Getting traced route list after sending packet from source to destination

So after I realized internet is just connection between routers and every routers have IP address, I want to know route of my already traversed packet. I mean, look this example case: Suppose my ...
Muhammad Ikhwan Perwira's user avatar
1 vote
0 answers
151 views

Cannot connect to an external drive attached to my routers USB

I have been trying to connect to an external WD My Book connected via USB to my TP-Link Archer C9 router and formatted ex-FAT. I've been trying from a terminal on my Ubuntu 20.04 web-server. I always ...
RodmanB's user avatar
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1 answer
31 views

Remote Server Configuration

I have a NAS Server on my network. Recently, there was a power cut in my area, and when the router came back up, the LAN IP of my server remained the same, but the remote IP of my server was changed. ...
Lee's user avatar
  • 105
2 votes
1 answer
370 views

Isssues forwarding port / Nat on openbsd

I am unable to make port 80 available on the WAN and I am not sure why. My setup is just my home network acting as the wan and my ‘lab’ as the lan. Wan 192.168.0.0/24 and lan is 192.168.5.0/24. Router ...
asdfagain's user avatar
1 vote
0 answers
77 views

No access to internet on Pop! OS with new ISP and new Modem

I'm running Pop! OS 20.04 LTS. Recently switched to new ISP (new modem/router). I have no problem connecting to the modem but then I don't have access to the internet. Some things to note: I only ...
user87317's user avatar
  • 111
1 vote
0 answers
524 views

How do I use netplan to link my lan port with my wan port?

This is part of a project to setup my linux machine with 2 nics as a router. The “routes” key in the below mentioned yaml configuration file is what I think I need to set in the yaml file. What ...
Raju Iyer's user avatar
-1 votes
1 answer
79 views

How to connect to the four Ethernet ports on a wireless router?

Let's say we are happy with our typical wireless router. But one day we notice it has four LAN ports. We connect an Ethernet cable from one of them to our computer. On our computer do we use: ...
Dan Jacobson's user avatar
1 vote
4 answers
1k views

Can a NAT router run out of ports?

The highest TCP port number is 65535. If a router doing NAT uses an ephemeral port for each connection made to the internet on behalf of the hosts on the internal network, does this mean that it is ...
Flux's user avatar
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1 vote
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138 views

ssh via public ip address

I have a VisionFive V1 risc v single board computer running Fedora. It is connected along with a raspberry pi to a router. The router has port 22 open and a public ip address. I can access the ...
adingbatponder's user avatar
1 vote
0 answers
121 views

Unable To Access Port Forwarded Content via Domain Name/Public IP Address From Within LAN

I have iptables setup to forward Traefik ports 80 and 443 to WAN, and am able to view the content via my public IP address and registered domain name from outside of my LAN (tested on mobile with WiFi ...
Mike B's user avatar
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0 votes
1 answer
110 views

SSH working with router turned off. SSHing through Powerline Adapter?

Today I have noticed that I could continue to SSH between two (unix) computers on my private network, despite having my router turned off. I was very surprised. After turning off my wired network on ...
Sithered's user avatar
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0 votes
0 answers
297 views

Home router on Fedora Linux

I've got a PCEngines micro PC with 4 ethernet ports, whole point was for it to replace my dying WatchGuard box. I'm not exactly new to Linux Firewalls but this is the first time I've tried anything ...
SarahH's user avatar
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0 votes
0 answers
199 views

New install of Linux Mint 20.2 Cinnamon (5.0.4) has ~50% packet loss - Caused by router?

I have recently installed Linux Mint 20.2 Cinnamon (5.0.4) (Kernel 5.4.0-74-generic) on my desktop on a separate drive from a Windows 10 install. On Linux I noticed very inconsistent connections when ...
Mandias's user avatar
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0 votes
0 answers
389 views

How to add proxy server settings in wifi router or access point

I have squid proxy server running in centos 8 i want to setup proxy server in wifi router or wireless access point which i can force wireless clients to go through proxy server.
Rizwan Saleem's user avatar
0 votes
1 answer
244 views

How does ping command work internally

I have Ubuntu 18.04 and two network interfaces (eth0 & wlan0) attached to it. So, I have effectively two LAN's (say LAN1 and LAN2) When I fire a ping command simply like ping followed by some IPv4/...
Network_starter's user avatar
1 vote
2 answers
988 views

Router blocking one specific device

I'm trying to connect my computer to the internet via a new router, and it is refusing to work in the most baffling way I've ever encountered. If I just connect to the wifi network in the normal way, ...
PBS's user avatar
  • 123
0 votes
2 answers
202 views

can‘t ping the ip addr after send a wget request

I am facing a problem while try to visit a remote website address. Please help me out. first.everything is ok. second.send a wget request.and recive "Connection reset by peer" then.ping not ...
Fridaynight's user avatar
0 votes
1 answer
197 views

Delete illegal router from network

I have a default gateway with IP address 192.168.1.1 and MAC address 5c:77:76:6e:0d:7b. It is my only wi fi modem router from which I receive internet. But in input nftables logs I saw another one ...
Tina's user avatar
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0 votes
0 answers
382 views

Compatible custom firmware for TL-MR3220 V2 with upgraded 8/64MB memory

First bit of background: I have been using OpenWrt since 2015 on TL-MR3220 V2 with 4/32MB memory. It was running great. Recently, after buying a MI 4A gigabit router I stoped using the TP-Link router. ...
Shohidul Alam's user avatar
0 votes
0 answers
130 views

Can I force router changes from linux CLI, like port forwarding with UPNP?

I have seen that I can use miniupnp to apply port forwarding on my router, and I would like to find another tool to apply DNS and/or DHCP settings on the router. Is this possible? My goal is to have a ...
xiki's user avatar
  • 1
0 votes
1 answer
637 views

How to connect internet automatically during startup?

The os recognize my ethernet device as enp6s0. ifconfig -a enp6s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.31.22 netmask 255.255.255.0 broadcast 192.168.31....
showkey's user avatar
  • 333
0 votes
1 answer
436 views

Retrieve "managed" flag of router advertisement from build-in IPv6 SLAAC support

The linux kernel has support for IPv6 SLAAC (stateless address auto-configuration) and is able to process received router advertisement messages. BUT: As much as I can understand, the kernel is not ...
FooBaron's user avatar
1 vote
0 answers
207 views

Multi-WAN CentOS router - Xfinity connection is Xfinicky. All other WAN connections work fine

This problem has been driving me crazy for days. I'm working on a prototype for a mini router/VPN client device to deploy to our employee's homes. Currently due to family circumstances I'm actually ...
s.co.tt's user avatar
  • 171
-4 votes
1 answer
51 views

"ping 10.26.14.16" is successful. "nmap -p 5016 10.26.14.16" is unsuccessful. Why?

192.168.1.*/27 : | +--- FW | +--- [192.168.1.133] A | +--- [192.168.1.140] B | : A = linux machine as a router [192....
rinto's user avatar
  • 13
-4 votes
2 answers
116 views

Linux as a router to forward

How to make an OpenStack instance to forward route to another Linux machine which is not OpenStack instance but in the same LAN? PC_A has 192.168.1.133/27. PC_B has 192.168.1.140/27. PC_A has 10.26....
rinto's user avatar
  • 13
0 votes
3 answers
297 views

Blocking internet of an DHCP assigned static IP, but allowing internal LAN network to get to device

I have a Rasberry Pi that DHCP assigns a static IP address (Based on it's MAC address) at 192.168.2.12 with the Local gateway at 192.168.2.1, I want to block internet traffic to it and from it, but I ...
Rick T's user avatar
  • 357
3 votes
1 answer
2k views

How to wake-on-lan via internet with python code?

My home network diagram is simple as below: internet --> Optical modem --> router --> pc1 ,pc2 111.111.111.111--> 192.168.1.1 -->192.168.31.1 --> 192.168.31.144,192.168....
showkey's user avatar
  • 333
0 votes
0 answers
240 views

dnsmasq does not resolv dns subdomains that are forwarding to the domain

i have a strange problem with dnsmasq. It does not resolv dns subdomains that are directing to domains. Example: https://t.newsletter.otto.de/r/?id=h494cd19e%2C323e1c29%2C25c7c155&p1=1&p2=...
josef_october's user avatar
3 votes
1 answer
6k views

How to debug: ssh_exchange_identification: Connection closed by remote host

SSH by private IP is fine I'm able to connect to a server through SSH by its private IP address: C:\Users\m3>ssh -vvvvA [email protected] OpenSSH_for_Windows_7.7p1, LibreSSL 2.6.5 debug3: Failed ...
Megidd's user avatar
  • 1,559
1 vote
0 answers
182 views

Linux Router for Public IPv6 dropping packets for 27 seconds

I use a CentOS machine as my router at the data center. Its doesn't do any NAT. It just routes my public ips. The DC routes my blocks of ips to the WAN interface and the router passes them through to ...
Floyd's user avatar
  • 11
1 vote
1 answer
721 views

Bypass OpenVPN on Linux Router for a specific IP on LAN

I use an Archlinux as a router on a computer on my network to encrypt all the Internet traffic through VPN. But I need to bypass Openvpn for one device on LAN. Its IP address is always 192.168.0.111. ...
Eman Amini's user avatar

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