Questions tagged [ip]
The IP (internet protocol) is a protocol for transmitting data over packets ("datagrams"). It is the primary protocol of the Internet. "IP" may also refer to an IP address, the numerical address assigned to an IP-capable device.
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block RFC1918 networks in pFsense for LAN seems not to work
Description of the issue: I've created a rule inside pFsense to block any traffic directed at RFC1918 originating from my OPT1 network, and it works fine. Now when I open terminal on OPT1 network PC I ...
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What is my Switch IP?
I struggle low network performance. When I copy a file to one server to another server, the network speed up to 8 Gb/s. I think that this issue can be missing switch configuration. How can I learn ...
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Different Custom DNS for Each Wifi SSID
I want to set Custom DNS for each SSID Wifi.
For example,
SSID 1 - Cloudflare DNS
SSID 2 - Adgaurd DNS
SSID 3 - Default
I have ZTE Router
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Netplan - add secondary IP address and assign a label
I saw the same question here, but I can't find it anymore. How can I add secondary IP address and assign a label to it via netplan?
I have this netplan config:
# This is the network config written by '...
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How do you port forward using IP filtering rules?
I'm trying to set up port forwarding for my NAS server for remote access from outside. I've set up Wireguard on my unRAID server and it shows this message:
Remark: configure your router with port ...
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My global IP address is 192.168.1.xxx?
I am using Ubuntu and found out that my global IP address is 192.168.1.xxx I wrote it as xxx here.
To check this I set up a web server and it could be reached only by this local looking ip address. ...
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Client on different IP range
I had to change my router. The old one had a range of 192.168.11.1 and the new one 192.168.0.1. The problem is that I have a NAS that had an IP set to 192.168.11 and now the new router detect it, but ...
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I am trying to connect my Raspberry Pi 1 model B+ to the internet via an ethernet cable which runs to my PC, and its just not working
I am running Ubuntu 22.04 and since the past few days I have really been struggling with getting internet connectivity to my Raspberry Pi, it doesn't support wireless networks, so I need to run a LAN ...
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How to reach an equipment that is on a shared network on windows 11
QUESTION
I am trying to connect a nas device to internet, by plugging it's ethernet socket to a desktop pc's ethernet socket. The desktop pc is connected to internet via WIFI. What should the settings ...
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Access cached DNS entries when main DNS-server is down?
I try to access subdomain.a.com which uses dns.b.com for DNS but that DNS-server (all 10 of them actually) is down since about 2 hours. subdomain.a.com is working as expected but you just can't access ...
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Cannot IP Forward From a Physical Linux Server to a Docker Container Running on Another Physical Server and Vice Versa
TLDR;
I have three servers, Server A, B, and C. Server A and B are physical servers on the same subnet. Server C is a virtual server, a basic WireGuard Docker Compose container running on server B, ...
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Two-routers with devices that share same IP? [closed]
If I connect two routers via ethernet, I can have to W-LANS.
I'm not sure about many things with this configuration.
These questions come to my mind that I couldn't wrap my head around:
So would I ...
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How to access a DVR on a different LAN?
I need to access a DVR that it's located on a different LAN. I have both the public and private IPs, but I do not know how to connect to it.
The DVR is connected to HikVision cameras, and I tried ...
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Static Internet IP blocking resource loading on a website
I have a static IP from my ISP. When I use this IP and connect to our company's quickbase.com, instance the browser is unable to load the Request URL:https://ui-features.quickbase.com/manifests/prod....
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open ports on external ip
I scanned my external ip address that was issued by my isp.
Some ports are open and I don't understand if they should be open or closed.
I thought port 631 ipp is for remote printers. I only use local ...
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Open Media Vault DHCP IP not showing on Router's connected devices
I've currently got a media server set up and working on my local network. It's running openmediavault.
It connects to the network correctly and can be accesed from any other machine on the network ...
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Windows 10 dont applies static IP settings of WiFi profile at reconnect
Windows 10. When i enter static IP information (addr, GW, DNS) for a specific WLAN network, the connection works fine. After disconnect, the reconnect tooks slightly longer than usual, and the connect ...
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Recover the IP address of a remote machine knowing its hostname + ip address of the network + sshkey registered
I want to remotely ssh a computed administered by only me. The machine is always on a fixed IP (network; I do not know the technical name for that). To ssh I use ssh [machine_name]@[machine_addr] (...
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Windows can't reach IP host through two routes
Problem: Windows 10 can't reach an IP host behind two routers, where the path is specified in static routes.
Windows has the following setup:
Windows Host (192.168.3.1/24 for the local LAN with ...
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Is there any way to query a router about the IPs it has already assigned?
I have a WiFi device which connects to my Android phone's hotspot. My Android phone acts as a router.
From my Ubuntu I connect to the same network. Is there any way to query the router (in this case, ...
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IPv4 failing, link-local IPv6 works
For some reason, I can't reach my laptop by SSH over WiFi on its IPv4 address, as it always just times out. However, connecting to it via link-local IPv6 works just fine.
Pinging the laptop over its ...
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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 ...
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Is It possible to use Google One VPN with another VPN?
I would like to use Google One VPN in a country where it isn't supported by connecting from my IP to a VPN and from that to Google One VPN on Windows.
For example I've tried using VPNs like Proton and ...
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SSH connection between Ubuntu Server VM
I'm trying to make SSH connection from my Windows 10 host to the Ubuntu Server VM.
At the beginning I built the VM from scratch on VMware and chose the Bridged Adapter configuration. It gave me IP of ...
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Xfinity hotspot not connecting to certain websites via extender
I am a Xfinity customer and receive xfinity hotspot at my location. The signal is weak so I got an extender. I was able to connect the extender to the xfinity hotspot, however it connects to some ...
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Why my private IP is not within the allowed ranges?
My Vagrantfile
config.vm.network :private_network, ip: "172.16.0.22"
config.vm.provider :virtualbox do |v|
v.customize ["modifyvm", :id, "--cpus", 2]
v....
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"hostname is too long" error messages in PowerShell when running a foreach loop
$IPadd = get-content LRSHost.txt
foreach ($ip in $IPadd) {
[system.net.dns]::gethostentry("$IPAdd")
}
When running this I get this error:
the size of hostname is too long. it cannot be ...
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Cisco RV340 2 ISP IP Addresses
I have a modem from my ISP set to bridge. In order to compensate for any changes that might happen in my IP allocation from my ISP I am using a Dynamic DNS which I update from the router itself.
When ...
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Creating own VPN-server for external users
I'm trying to set up a VPN-server from my home router so that external users (from other countries) could connect to it.
Basically, I want it to work this way:
External User (IP-address "A") ...
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Nat routing from 1 network ro several potentially conflicting internal networks
basically i'm in the industrial automation space and every different machine has its own internal network. they also each connect to the company internal network. proble is that sometimes different ...
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Pi-hole logging with client names
Situation
I am using Pihole in a network with a google wifi router. The router (...1.1) is configured to use the Pihole server (...1.220) for DNS lookup, and all is working as wanted. So far, so good.
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Custom subnet mask while using DHCP
I'm trying to connect to an RPI on the same physical network over SSH. Normally, I'd do this with a simple ip a, ssh xxx@ip, but because of the network it doesn't work. There are several problems:
...
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Why is my public IPv6 address different from the one listed in linux
Going to [whatismyip.com][1] on different devices inside my home network provides expected results, the same IPv4 address and different IPv6 addresses on each device. However, upon looking at the ...
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"Invalid input detected at '^' marker" error encountered. How to resolve?
When attempting to configure a static route on a router in Packet Tracer, I run into an error where the g0/1 interface part of the code isn't accepted. What should I check first, or do to resolve this ...
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What's my public IP address
I ran this command in Windows: ipconfig. And it gave me this:
Windows IP Configuration
Ethernet adapter vEthernet (Default Switch):
Connection-specific DNS Suffix . :
Link-local IPv6 Address ....
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Would 0.1.0.1/16 be a valid public ip address?
I have a question regarding the validity of the IP address 0.1.0.1/16. After consulting the reserved IP list provided by IANA, I noticed that only the ranges 0.0.0.0/8 and 0.0.0.0/32 are listed as ...
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Discover the IP address of a device on a wired network, MAC not known
How can I get the IP address of a device (device1) that is connected via ethernet to an unmanaged switch, from another device (device2) connected via ethernet to the same switch?
Internet access to ...
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Nameresolution from Ip-adress
Is there other ways than DNS/NetBios to resolve name from Ip-adress? I have a device where there is no option to configure the DNS-server adress. There is a DNS-query being sent from the device, but ...
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What does this format of a IP Address mean? [duplicate]
Suppose we have a IP Address of a subnetwork of this form:"192.168.1.0/22.".What does the "/" mean in between of 0 and 22?I have never seen a IP Address in such a format.Does it ...
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Does the data packet header contain the destination device's private IP address or router's public IP address?
If data packet headers contain the device's private IP address (and not the router's public IP address), how will the device receive the data if only the router knows about the device's private IP ...
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Can't ping my external CGNAT IP address from external network [duplicate]
I'm new to networking and I'm trying to scan my external IP from an external network.
I first tried finding my public IP from whatismyIP.com. The IP address on that site was different from the ...
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Devices aren't both available when connected through a switch
I have the following situation:
Computer (with Windows) with a single ethernet port, with the config below (*)
DeviceA, configured with fixed IP 192.168.254.254, connected alone to Computer with an ...
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I have a website that is blocked by domain, but the cloudflare ip address is not blocked
The website https://discord.com/ is currently blocked in my country, I tried using vpns and such but it is too slow and a big mess after a while.
I realized that discord uses cloudflare, after getting ...
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How does a router know an IP address's network prefix when it comes to CIDR?
Let's say I start a new company and lease a block of IP address 222.123.123.0/25 from Internet registry, so one of those IP address 222.123.123.4 is my main web server.
A customer from a different ...
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IPIP tunnel packets are not send
I have a VPS with an external IP say 40.40.40.40 and trying to create IPIP tunnel to it. Here is what I tried:
#create interface megatun0 to tunnel traffic through the host 40.40.40.40.
sudo ip tunnel ...
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How to explain this ip routing table
On my Ubuntu desktop
ip route help does not help me:
Usage: ip route { list | flush } SELECTOR
ip route save SELECTOR
ip route restore
ip route showdump
How to explain the following ip route:
default ...
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Can router give the same public IP to 2 different networks? [closed]
I have set up a virtual machine and specified an IP address for it that is outside my home network. I cannot ping this machine and access it through the Internet from my host machine. I presume it is ...
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How to find public ip address in PowerShell from a restricted internet in windows 11
How to find public ip address of a windows 11 pc using powershell or command prompt.
Tried ipconfig and gip(powershell) both of them shows different ip compared to ip from the browser.
IPv4 displayed ...
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Setting IPs for multiple NICs on same server
I would like to check my understanding on assigning IPs in the same subnet to multiple NICs in the same server.
I have a server with 2 NICs (say, NIC1 and NIC2). My goal was to, after setting IP1 to ...
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Mark only the udp traffic above a certain rate using iptables commands
I'm trying to achieve the following scenario:
Using the iptables command, mark UDP traffic with destination port 1234 that passes through a Linux router with the recommended DSCP value for Expedited ...
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