Questions tagged [subnet]

A subnetwork, or subnet, is a logically visible subdivision of an IP network.

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Full Network Enumeration without an assigned ip address

I've faced a situation where I connected to a network with an ethernet cable and the DHCP server was disabled, so I didn't get an assigned ip. I was wondering if I can run a scan with kali linux tools ...
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Communicating between two subnets

I have the following network configuration: ISP Modem Router Huwawei EG8145V5 [LAN IP 192.168.1.1/24] with its LAN port connected to the WAN port of a... Xiaomi AX3000 [WAN IP (from ISP Modem Router)...
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PFSense: Subnet can not communicate to the outside

I have multiple subnets on a hypervisor with four Ethernet ports. Two are called subnets. Both of them are utilizing a NordVPN tunnel as their default gateway. The first subnet LAN can talk to ...
daniellooartist's user avatar
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Does adding a second IP as /32 with static routing cause any unintended issues?

I have a /28 network and I’d like to add a single IP (/32 network). On my Debian machine this looks like: auto eth0 iface eth0 inet static address 192.0.2.212/28 gateway 192.0.2.209 iface eth0 ...
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Is it possible to trick a device into thinking a client is on the same subnet when it's actually virtualized?

I'm a software engineer with only very basic networking skills, so I apologize in advance if I fumble a bit with my explanation here. I have a physical device (specifically, an older model of this ...
me--'s user avatar
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Multiport NIC forgets Static IP

Kind of a niche use here, but I'm using multiple PC's to host virtual instruments via network and stream audio back to the primary machine's DAW. Best case scenario is that the host and slave machines ...
Kyle Judkins's user avatar
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Multiple Interfaces on same subnet breaks PTP

I have a PC ("main PC") with two interfaces mgbe0 and mgbe1. Both of these interfaces connect to another PCs A and B (mgbe0->"A", mbge1->"B"). Both PCs A and B are ...
Megapiot's user avatar
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Connecting to a device with a static IP on a different subnet

So, my laptop is at Location A receiving a DHCP address in the client's subnet on 10.60.50.x/24. There is a device at Location B with a static IP at 192.168.1.39 (trying to connect to its web ...
Adam Schuetz's user avatar
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Tailscale subnet routing doesn't work on-site

I've got a Tailscale subnet router to 10.0.0.0/8 set up and when accessing from a Windows laptop remotely, it works great and I can access these private machines using their addresses. The problem ...
Nick's user avatar
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DDNS and WoL via secondary router on a host network I don't control

Short version is that I am trying to find a way to utilize wake-on-LAN to remotely (from an outside network) wake up a computer on a private subnet within a larger network that I do not control. Very ...
curtis's user avatar
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OpenVPN with subnets and other permission for each of them

Is it possible to configure openVPN network in topology subnet to split network for subnets and add other behavior for each subnets regarding to possibility to communicate for each clients e.g. in ...
M4xell's user avatar
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Wrong subnet configuration works anyway in a shared bus, but doesn't work in switched lan. Why?

I was told that this configuration (which contains an error in DNS mask which is /23 instead of /24) works only because it's a SHARED bus. If it was a SWITCHED lan, the DNS responses from DNS to A ...
Allexj's user avatar
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Allow access from 192.168.1.* to 192.168.2.*

My current network setup looks like this: Cable Modem/Router (provided by ISP) ---- Router 1 ----------- Router 2 LAN: 192.168.1.1 LAN: 192.168.2.1 ...
Sam's user avatar
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How to access LAN subnets from other subnets with interzone firewalling on the same router?

This has probably been asked before, but I have no idea what this is called or what search terms to use (this answer kind of seemed what I'd need, but I'm unsure) I have a WRT1900ACS running OpenWrt ...
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Subnets non-mesh Wi-Fi on mesh Wi-Fi environment

Situation I am living in a shared house where the Internet is provided by the owner. He installed Wi-Fi Access Points in different places of the house and an Internet port in each room. I want to ...
g_hal's user avatar
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I need a Network design to manage smart home devices across two networks

I have a planned design but I need opinions and comments.I am not a professional. My family has two apartments (Apt A, Apt B), each with its own ISP modem (300 Mbps) and WI-FI 6 tri-band router. Each ...
Ashby's user avatar
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Why do we prefer subnet 192.168.1.0/24 to get more networks? Why not just make 192.168.2.0/24 another network and 192.168.3.0/24 another one

Why do we prefer subnet 192.168.1.0/24 to get more networks? --network #1 192.168.1.0/25 #2 192.168.1.128/25 Why not just make 192.168.2.0/24 another network and 192.168.3.0/24 another one. Does ...
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Accessing PC on another subnet under a different router

My home network is setup as above diagram, I have an isp provided router which provides access to the internet over fiber connection. ISP router has an internal IP of 192.168.1.1 I have another ...
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Subnet exam preparation for a dummie

I am an amateur programmer currently wishing to apply for Master degree in SE after obtaining my Bachelor's in an unrelated field. There is an entrance exam in my country, and this is one of the ...
Lev Barenboim's user avatar
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Different subnet masks on same network

I have a home network which is currently setup to use the 192.168.1.0 / 255.255.255.0 IP subnet. with my ISPs router 192.168.1.254 as default gateway. I'd like to add some IP cameras to the same ...
JoSSte's user avatar
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Windows Hotspot : share origin subnet

My router's got a problem : the WiFi emitter is dead. The Ethernet's fine though. So I'm using one PC (pretty old, has an RJ45 port) as a Mobile Hotspot. This creates a new subnet 192.137.145.0/24 I'...
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VLAN-tagging based on MAC-Adress

we are currently setting up our own router with a Bananpi R64 and ArchLinux as operating system. We would like to divide our network at layer 2 into different subnets (home, private, guest, ...) using ...
Mandarine's user avatar
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Connect one PC to separated networks with the same subnet mask

I need to connect one PC with two network interfaces, Windows 10, to two separated LANs, that share the same subnet mask (and same IP addresses): The purpose is have a bidirectional connection (TCP, ...
ssambi's user avatar
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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 ...
Rayne's user avatar
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Connecting to NAS server on different subnet at home

Attached you will find diagram of my home network + tracert. Please review before reading below, to help with context. I have two routers. One has my NAS server and regular daily traffic. The second ...
Makavel1's user avatar
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Direct ethernet connection without knowing the Subnet

I have two linux devices: A: One has static IP (eg. 10.255.253.5 and mask 255.255.255.0). I cannot know or change this IP. B: The second has a direct access (Screen and keyboard) I'd like to connect ...
Manitoba's user avatar
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Why is my front door camera still working when it's static IP is from a different subnet?

Recently I put my AT&T router in passthrough mode to have more control over my network. My ATT router acts on 192.168.1.xxx while my new TP-Link router IP is in the 192.168.0.xxx range. I have a ...
Sidney's user avatar
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How can I share a windows network drive to another computer which is in a different network?

I have a computer (Computer 1) which is in a different subnet than the Network Server. Computer 1 should be able to map a network drive on that server. There is another computer (Computer 2) which has ...
Michael Hutter's user avatar
3 votes
2 answers
2k views

Does subnet mask matter for router?

First let me say that I'm new to networking. But if i have servers with 10.0.0.47 (/8) subnet masks which gives me enough for host addresses, do i have to assigned my router interface a (/8) subnet ...
yuki's user avatar
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4 votes
4 answers
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Why does it seem like I am losing IP addresses after subnetting with the subnet mask of 255.255.255.192/26?

Note: I'm not referring to 2 IP addresses that gets lost when using subnetting. I think my math is wrong somewhere. Here is what I'm doing. Class B Private IP Range: 172.16.0.0 to 172.31.255.255 To ...
Iftikhar Ali's user avatar
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How to configure Modem and Router allows devices ping from different subnets in a mesh network setup?

I'm having trouble with my network and need some help. I have a modem and three home gateway routers set up as a mesh network, with one acting as the controller and the other two as agents. My modem ...
Hien Nguyen's user avatar
1 vote
2 answers
2k views

Access Devices On Different Subnet

I have a network set up like the following: diagram of my network hierarchy Basically, I have a switch that has some devices connected directly to it as well as a router connected to the switch which ...
JMA's user avatar
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3 answers
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Extending Range + Same network on both routers

I have 2 routers. I need 2 because my house is large. But I also want to be to access the upstairs network and ssh if needed into the family computer or connect to the printer etc. This is not ...
Harold D. German's user avatar
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How to set Netgear FVS338 as "Interior Router"?

I got a NETGEAR FVS338 ProSafe VPN Firewall Router. I planned to use it as Interior Router that seating in back of my Sagemcom Gateway F@st 5366 TN-A. I'm running quite few business application ...
cidy.long's user avatar
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How to set Netgear FVS338 as "Interior Router"?

I have a NETGEAR FVS338 ProSafe VPN Firewall Router. I planned to use it as Interior Router that seating in back of my Sagemcom Gateway F@st 5366 TN-A. I'm running quite few business application ...
cidy.long's user avatar
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Why can't I accces my local server over cable but Wifi works

I dont really know much about it, but asking since I would like to know why?, and if there is a simple way to solve the situation. I have a local Ubuntu server connected via wifi. I can SSH to my ...
psynchro's user avatar
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370 views

How to configure a router for two subnets?

I'm basically trying to configure a router to act as both a hub and a router. I have two routers in my network, one with the IP 192.168.2.1 (Router A), which acts as a DHCP server, as well as several ...
SchlaWiener's user avatar
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Access a second subnet over OpenVPN server

I am facing a problem with my OpenVPN server setup. First let me explain my network setup. I remotely connect to my openvpn server (10.10.20.0/24), which is hosted on my Router_A (192.168.20.0/24). ...
kzn's user avatar
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hyper-v computer getting ip from dhcp that on other subnet

i'v installed windows server 2019 with dhcp server role i'v created a virtual lan switch 192.168.70.1 / 255.255.255.0 and created dhcp scope: 192.168.9.1 - 192.168.9.10 with subnet 255.255.0.0 notice ...
mikuzan's user avatar
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How to enable communication between a device on guest network to a device on parent (main) network?

I have 2 wifi routers, 1 is an old TP-WR740N that I am using as a switch to give wired access to my devices. And another new Archer A6. My main network is on A6 and the WR740N is added as an AP. I ...
TheWhiteFang's user avatar
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2 answers
2k views

How to connect to a device with previously set static IP that's now on a different subnet?

I have a PoE camera that has a static IP address that was manually set on the camera interface. The IP address is 192.168.86.x, but now my new router has a different subnet (192.168.0.x). All of my ...
Stephen's user avatar
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1 answer
379 views

Access another device with different subnet

I setup my home network like in the image. Router A network is more secure and Router B network is less secure. How do I access the webgui of Router B from Device A1? I do not need any devices behind ...
nospamever's user avatar
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1 answer
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What routing setting do to ping other machines on other subnets through VPN?

To help explain my problem, I drew a diagram: net draw What I've managed to do so far is: I can ping the 192.168.200.101 machine from the 192.168.100.200/192.168.50.1 machine. To do this, I run the ...
Koala's user avatar
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How to connect to a computer under a subnet mask of a router on my network

Edit: Let me know how to not use a link for the image as well if you want, and instead just post it on question itself. So I have a router (let's call it R) that's on my network (call it NB) and under ...
lAPPYc's user avatar
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Two Routers on the Same Subnet

So I've been fiddling with an issue all afternoon, and think it's time to reach out. I live in a house with concrete walls, so I decided to buy a second router and some Ethernet-over-powerline ...
m_squared's user avatar
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1 answer
4k views

Access different IP on same network

I have a device which has a static IP that cannot be changed permanently (192.168.1.4). My network is on a different range 10.0.0.xx. Is there a way rather than connecting the device directly to the ...
FeliceM's user avatar
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Why not just have a second IP address instead of subnett mask?

I'm just learning networking and subnetting so I might be missing something, but from what I understand: why not have one IP address just for networks with all 32 bits being the Network ID, and a ...
Metoshi Nakamoto's user avatar
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Subnet masking to get 2 subnets each with 126 host

Suppose we have a subnet mask of value 255.255.255.128. May I know please why this would split the network into 2 subnets each with 126 hosts? From my understanding, if the subnet mask was 255.255.255....
Avv's user avatar
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1 answer
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home networking create vlans or subnets on router?

I have a C20 TP-link home router and I was interested in subnetting (is the same thing as a vLAN?) my home network...is it possible isolate via subnetting (vLAN?) everything that is hard wired into ...
bbartling's user avatar
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3 answers
3k views

Change subnet mask from 255.255.255.0 to 255.255.255.255

I am using a broadband connection and the subnet mask given to me by the broadband company is 255.255.255.0. I want to know if I change the subnet mask to 255.255.255.255 then what will be the effect ...
Abir Mondal's user avatar

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