Questions tagged [subnet]
A subnetwork, or subnet, is a logically visible subdivision of an IP network.
534
questions
0
votes
2
answers
53
views
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 ...
- 177
1
vote
1
answer
38
views
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 ...
- 1,425
0
votes
1
answer
25
views
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 ...
- 131
1
vote
2
answers
141
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 ...
- 11
4
votes
3
answers
1k
views
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 ...
- 63
0
votes
0
answers
30
views
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 ...
- 21
1
vote
2
answers
104
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 ...
- 13
0
votes
3
answers
50
views
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 ...
1
vote
0
answers
34
views
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 ...
- 149
0
votes
0
answers
13
views
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 ...
- 149
0
votes
1
answer
231
views
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 ...
- 1
1
vote
0
answers
110
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 ...
- 11
0
votes
0
answers
319
views
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). ...
- 1
0
votes
0
answers
145
views
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 ...
- 3
0
votes
1
answer
169
views
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 ...
- 103
0
votes
2
answers
271
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 ...
- 5
0
votes
1
answer
91
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 ...
0
votes
1
answer
29
views
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 ...
- 3
0
votes
0
answers
107
views
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 ...
- 1
0
votes
1
answer
44
views
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 ...
0
votes
1
answer
293
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 ...
- 113
0
votes
1
answer
44
views
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 ...
0
votes
1
answer
213
views
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....
- 103
1
vote
1
answer
49
views
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 ...
- 185
0
votes
3
answers
900
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 ...
0
votes
0
answers
52
views
Local Subnet is classified as "Unidentified Network" in Windows. How to give it a name?
When I several of my computers hooked together with ethernet cables I see this in the network and sharing center:
It is classified as an "unidentified network" even though all the computers ...
- 1,188
0
votes
1
answer
27
views
Forbid router from creating a subnet?
A switch (device A) connects two wall Ethernet sockets in different rooms. Each room contains exactly one wall socket. One room contains storage media with Ethernet connection (device B), which is ...
- 243
1
vote
1
answer
68
views
Some LAN trickery
New apartment. Two Ethernet sockets in walls. One is connected directly to PC (device A). The other is connected to a Netys Wi-Fi travel router (device B). Laptop (device C) is connected to device B ...
- 243
0
votes
0
answers
108
views
How to stop modem "stealing" local IP from router?
I have a NetGear C6300 modem (TCP/IP 192.168.0.1) and NetGear R6700AX Wifi router(TCP/IP 192.168.1.1) attached to it with an ethernet cable.
Every time I connect a device to the modem, it will get a ...
- 1
0
votes
2
answers
622
views
how enable communication between devices in different subnets
In the scenario described in this question:
How can a device on 192.168.252.x/24 see and communicate with a device on 192.168.1.x/24?
I'm trying to add a route so my router redirects packets for 192....
- 17
0
votes
0
answers
18
views
Trying to connect a subnet through a wireless router to a server port using a cable
I wanted to keep the server isolated, but a different subnet should be able to access the wireless router at all times. Only when I plug the router cable in to the wall port should all of the other ...
- 1
0
votes
0
answers
1k
views
WireGuard full tunnel blocks Internet access
Thanks for even clicking on my question !
So, I have an R-Pi, and I installed WireGuard on it (I am NOT using PiVPN; I tried, but it wasn't working at all). I also have PiHole installed.
I have been ...
- 11
0
votes
0
answers
125
views
IP addresses from different networks mixed together in routers DHCP connected devices list
My Compal CH7465VF ISP router has DHCP enabled.
In the connected devices list I got mainly devices with IP address in the 192.168.0.X/24 range.
But I do have two devices, one a Tapo_SmartPlug that ...
0
votes
0
answers
83
views
Iptables Block Subnets except Internet Gateway
I have a Wlan Router
WAN IP 192.168.20.130(64port switch),
internal ip 192.168.1.1 DD-WRT Firmware.
The Internet Gateway is a Server in 192.168.20 Subnet, IP 192.168.20.254, an external Subnet is ...
-1
votes
1
answer
135
views
Generally major network subnet mask is given for subnetting, how would you calculate it if it was not given?
Generally you're given address with subnet mask to subnet. For example:
192.168.0.0/16
But say you're not given the address. You've to assume the address.
The hosts are given:
There are 5 departments:...
- 11
1
vote
1
answer
281
views
Firewalld DNAT Subnet translation
I want to translate subnets using firewalld.
I have a ethernet interface, that should translate incomming packets targeting
192.168.1.0/24 to 192.168.178.0/24.
My home network is 192.168.8.0/24
I ...
- 11
3
votes
1
answer
305
views
How to give device on modem’s subnet a second IP on the routers subnet?
I’m new to network stuff so please excuse me if I miss something obvious
I have a modem with the subnet/DCHP 192.168.1.x and a device on it with the local IP 192.168.1.66. This device acts as a server ...
- 153
3
votes
2
answers
3k
views
How would you split this range into subnets of this kind?
Suppose there is a network range 150.100.123.0/24 that is to be split into two subnets, one with 2 hosts and another with the remaining 252-2 hosts, how can it be done. The small subnet can be 150.100....
- 131
0
votes
1
answer
632
views
How to setup router with 2 web connections starlink / comcast - to load balance
My goal is to have 2 internet connections load-balanced providing internet to my network.
WAN1: Comcast - Router (in bridge mode currently) connecting to peplink router/load balancer WAN1 port.
WAN2: ...
- 1
0
votes
0
answers
492
views
Scan for subnets on a LAN
This is a fairly basic question. Is there a way to scan for subnets or all devices on a network? Using nmap -sn 192.168.1.1 returns only devices on 192.168.1.X. I am trying to scan for subnets such as ...
- 1
0
votes
1
answer
4k
views
how do I fix this? Ip contains set host bits?
I am setting up a ubuntu server (ver 22.04) so I can place a universal forwarder for Splunk on it and redirect FortiGate traffic to the SIEM (Splunk).
In total there are 6 virtual machines that i am ...
2
votes
1
answer
1k
views
Access devices on different subnet on another router - ER-X
Current Network Map
My noob question is why any device on network 192.168.10.0/24 can ping any device on network 192.168.1.0/24 and the opposite doesn't work?
I need to be able to connect to my ...
0
votes
1
answer
123
views
Make a remote host have a local IP address with ARP capability(Steam Link)
Currently I have two subnets in the 10.0.0.0/16, which are 10.40.20.0/24, let's say that's A and 10.32.80.0/24, B.
My PC is in the subnet A and what I'm going to do is use Steam Link, Oculus Air Link ...
- 1
0
votes
1
answer
127
views
Subnetting with VLSM
Hello I am new to networking and I am a bit confused. I need to subnet this with VLSM, I think I need 6 subnets if I'm not mistaken. I don't really know how to determine all the hosts needed in each ...
0
votes
2
answers
231
views
Do multiple SSIDs provide additional security?
I am trying to learn more about home networking and have been experimenting with a Netgear Nighthawk R8000P Router. I noticed that it offers different SSIDs, and initial searches seemed to suggest ...
- 129
0
votes
1
answer
673
views
Isolating my work computer
My employer has supplied me with a work computer, a MacBook, which contains classified/proprietary information. I would like to connect it to my home network, but am worried that a) My employer could ...
- 129
0
votes
1
answer
72
views
Given the IP address 22.181.0.0/21, create subnets starting from this address
Given the IP address, 22.181.0.0/21, subnet the network for the following offices, based on the number of devices for them (The first two columns are given. I've calculated third, fourth and fifth ...
- 121
3
votes
2
answers
6k
views
How do you properly allow two devices on separate subnets to communicate (PFSense)?
I'm trying to figure out how to get 192.168.0.22 to properly ping/be able to transfer files with 192.168.77.10. Firstly, is this a dumb setup? I'm mainly using it right now just for educational ...
- 53
4
votes
1
answer
8k
views
How to correctly set the subnet mask installing Linux Ubuntu 20.04 server? ERROR: '172.16.182.216' is not contained in '255.255.255.0/24'
I am not a system engineer or a network expert (I am more a software developer)
I am trying to install an Ubuntu Server using static IP address. I am using the information provided by a collegue.
...
- 6,901
3
votes
3
answers
1k
views
Subnet cross-access with three routers
I am trying to build a home network with three routers and one switch. My search here and on the internet didn't yield much, partly due to every question being very specific and also me being a novice ...
- 33