Questions tagged [subnet]
A subnetwork, or subnet, is a logically visible subdivision of an IP network.
558
questions
2
votes
1
answer
96
views
Is this a valid assignment (made by professor) about dividing hosts into two subnets?
I quote the assignment:
"Consider an organization with 4000 hosts. Divide the hosts into two subnets containing 1000 and 3000 hosts. Choose network ID's and define the subnet masks so that the ...
2
votes
1
answer
4k
views
mDNS / Bonjour thourgh WLAN and VLAN
I have here the following situation:
Zyxel USG20 -> VLAN -> Server (192.168.50.xx) (local_1)
|
| -> Switch -> wired devices (192.168.80.xx) (local_2)
-> LEDE WLAN ROUTER -> Mobile ...
2
votes
1
answer
161
views
No connection with router after changing its IP to network prefix
I changed IP of my router from 192.168.1.1 to 192.168.1.0, which is my network prefix. What should I do to retrieve connection to my router?
UPDATE
I am on LEDE project and router TP-Link Archer C7. ...
2
votes
1
answer
3k
views
Cannot ping computers on another router
I'm having issues with my home network. I have 2 TP-Link Routers (TP-Link 150Mbps ADSL2+ Modem Router, TP-Link Archer C20). Archer C20 is connected to ADSL router via WAN port (LAN port in ADSL).
...
2
votes
2
answers
6k
views
LAN to LAN with different subnet
Is it possible to have 2 routers to communicate to each other via LAN to LAN (not LAN to WAN) despite both have different subnet?
Topo:
Router 1 (192.168.1.0/24)
Router 2 (10.0.0.0/24)
For ...
2
votes
3
answers
124
views
Routing across subnets
We have an IP phone system on a 172.16.x.x address. This is a live system which we use every day so we know it works.
The confusing part is; all the desk phones are on 172.16.1.x whereas the gateway ...
2
votes
1
answer
810
views
Using WLAN Router without creating new subnet
I have the following network configuration at home
I'm connected through a NanoStation M5 to the internet. The NanoStation has a DHCP server and provides IP addresses for all wired PCs which are ...
2
votes
2
answers
3k
views
Cannot reach the computer in WAN
I wanted to split the internet connection in my room. And my brother also wanted a better wifi accessability. So we bought a router (NETGEAR JWNR2010v5). All we wanted works great, good wifi. I have ...
2
votes
1
answer
9k
views
static IP outside of subnet range
I have two questions, but let me explain the situation first. They are about the (static) IP address of a printer attached to the network.
We had this networking setup, using a normal consumer router ...
2
votes
2
answers
37k
views
How do I get a /23 subnet mask from 172.16.0.0 /21 network address?
I have 172.16.0.0/21 and my mask is 255.255.248.0 which gives me an IP range from 172.16.0.0 to 172.16.7.255
255.255.248.0
11111111.11111111.11111000.00000000
Network------------------------Host
...
2
votes
2
answers
3k
views
Can't connect to Cisco router's settings page
Currently I have a 2 wire modem, and a Netgear WNDR3400. What I want to do is add a Cisco RV100W for its VPN features. Currently the Netgear router is connected to the modem via the WAN port. When I ...
2
votes
1
answer
1k
views
Routing to one IP via different gateways
I have an OpenVPN connection (point to point). When program connects to server it gets IP and Gateway dynamically, from server.
I need to make windows add route to my secure server through given ...
2
votes
1
answer
3k
views
Two subnets on one switch with no VLAN and possible problems
As far as I know in order to use two subnets on one physical cable VLAN's are recommended.
However, is it possible to achieve this (i.e: two subnets on one physical network)
like 192.168.1.0/24 and ...
2
votes
1
answer
27
views
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 ...
2
votes
1
answer
115
views
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 ...
2
votes
1
answer
995
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: ...
2
votes
1
answer
3k
views
Can't mount network drive across subnets
I seem to be having an issue when it comes to mapping a network drive to Windows' Explorer. I am trying to map my NAS which is located in 'Router1', and my computer which is in 'Router2', but every ...
2
votes
2
answers
7k
views
How to determine the number of subnets needed
I just started networking and was given this exercise I'm trying to determine how many subnets are needed for this network.:
The main network ID is 192.168.0.0/16. Given that I know that this is a ...
2
votes
1
answer
37k
views
Destination host unreachable on same subnet
I have a PC on my network. It is configured with a static IP address, 192.168.1.110. It is connected via LAN cable directly to my router with IP address 192.168.1.1. The PC's gateway is set to the ...
2
votes
1
answer
1k
views
How do I assign IP addresses with the address space 192.168.10.0/23?
Firstly I'm a beginner so please forgive me.
I can't quite figure out how to do this as I've only ever been taught how to assign IP addresses with the address space of xxx.xxx.xxx.xxx/24 which makes ...
2
votes
1
answer
105
views
On boot, how can I switch to a static IP based on a gateway IP provided by DHCP?
I have a "headless" *NIX host -- let's call it 'foo' -- that is to be accessible via SSH and VNC-tunneled-over-SSH on an arbitrary 192.168.x.y/24 private LAN. Sometimes, I want to physically move 'foo'...
2
votes
1
answer
220
views
IP subnet /17 for latter range (x.x.128.0 - x.x.255.255)
This site shows 115.93.0.0/17 has the range of 115.93.0.0 - 115.93.127.255
I'd like to setup firewall range of 115.93.128.0 - 115.93.255.255.
how can I say it with subnet? my firewall console only ...
2
votes
1
answer
3k
views
Windows Networking - Treat two subnets as one network
We have an existing (old) network (10.0.0.0/24) and we're trying to add another (new) subnet (20.0.0.0/24) using a Cisco 2901 router. I added the appropriate routes and tested everything out. We're ...
2
votes
1
answer
12k
views
How many subnets are needed?
I'm just starting out with networks. I'm trying to determine how many subnets are needed for this network:
BRANCH1, BRANCH2 and HQ are routers. The Boxes between routers and PCs are switches.
The ...
2
votes
1
answer
771
views
How do subnetworks communicate with each other? [closed]
I'm a networking newbie and I'm a little bit confused about the difference between the terms:
Zone
Sub-network
Topology
I've seen network diagrams where a business's network was divided into three ...
2
votes
2
answers
9k
views
Network printer connection issues with different subnet on Win 7 Pro?
So we have a mixed node set on our network with Win XP Pro, Win 7 Pro, Ubuntu 11.04, Win 2k3 Server Std, etc all within in an Active Directory Environment. We also have network printers that are ...
2
votes
1
answer
766
views
Separate computers in my apartment can't communicate to each other?
In my apartment, the management provides the building with a network connection. I have my computer plugged into the ethernet coming out of the walls, and my friend who also lives in the apartment ...
2
votes
0
answers
45
views
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 ...
2
votes
1
answer
514
views
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 ...
2
votes
0
answers
160
views
VPN Client conflict between local IP and VPN IP subnets - Macos NAT layer as solution?
My office is setup with a few subnets. My runabout computer can typically connect to the office over an L2TP VPN connection (setup in the network tab of Macos System Preferences) and access all of the ...
2
votes
1
answer
153
views
Why can I reach an Ethernet connected device with a static ip outside my network?
In my local network, I have the following setup.
My laptop's ipconfig output is
I've also connected a physical printer with via Ethernet to my router. This printer has an http interface which allows ...
2
votes
1
answer
4k
views
Change the gateway in a docker network
I'm trying to create multiple dockers (from the same image) and put them in a subnet where I can work with them as if they were many machines.
version: "3"
services:
machine001:
...
2
votes
2
answers
354
views
Home Network Setup and Advice
I am wanting some ideas and advice for how to do my home network. I am an IT Technician and know the basics, however networking is not my strong suite and I want to improve.
[Current setup]
There ...
2
votes
0
answers
523
views
separating two networks with DMZ?
I am a college student wanting to get into server and networking but I have an issue I need help with at home. I asked a question about a year ago about creating two separate networks with the same ...
2
votes
0
answers
133
views
Setup IPv6 on two routers with file sharing
My current network is as seen below (plenty of more wifi devices but you get the idea).
+--------+
...
2
votes
1
answer
463
views
Using private IP form a subnet to another subnet
Suppose I stay in the blue building and there is also a red building and other buildings too (picture below). In each building, there are about 50-60 families. An ISP provides internet connection in ...
2
votes
1
answer
2k
views
Assigning IP addresses and subnetting on a home network
After 4 days of trying, googling, and tearing my hair, I have managed to bring down the internet at my home. I needed to implement the network as follows, however my efforts have managed to bring down ...
2
votes
0
answers
2k
views
Why can't I change the subnet IP address in the Virtual Network Editor in VMware Workstation?
In the Virtual Network Editor in VMware Workstation (version 9.0.0 build-812388), I want to change the subnet IP address of one of my host-only virtual networks from 192.168.203.0 to 192.168.124.0 (...
2
votes
1
answer
2k
views
Window 8 machine cannot ping devices on same subnet
After returning from vacation during which several Windows updates were applied and my router suffered a hard power cycle, my Windows 8 Desktop can no longer ping other devices on the same subnet. ...
2
votes
0
answers
2k
views
Accessing a wireless router on a different subnet
Okay, I'll try to describe how this network is set up. I didn't do it personally, but it has been described to me. Firstly, we get our internet from a 3G wireless USB card from ATT. This means that ...
2
votes
2
answers
2k
views
Use ubuntu 14.04.3 box as a wireless access point, no dhcp server and eth0 to wlan0 bridging
I noticed that I had a 300Mbps N wireless adapter laying arround so I decided to use it in my ubuntu server to expand the range of my local nework, that server is being used as a samba and ftp server, ...
2
votes
3
answers
981
views
How come I can ping google but not a PC on a different subnet within my campus network?
I am a newbie to the networking world. I know that one cannot ping two PCs connected to different subnets unless you have a router in between.
But, I was wondering how come I can ping www.google.com ...
1
vote
3
answers
1k
views
Device category between router and firewall (subnetting but nothing more)
In our office building we are eight small independent offices. In the future we would like to share one internet connection. In order to make sure that we do not access the network of each others we ...
1
vote
1
answer
3k
views
Is the following IP address mask legal?
Is this subnet mask is valid or not???
binary value of this 255.224.252.0 is
11111111.11100000.11111100.00000000
255.224.252.0
is it a legal subnet mask.
1
vote
2
answers
248
views
Semantics of how subnets work
Suppose I have host1 with configured IP 1.2.3.4 and subnet mask 255.255.255.0 connected to a router.
Is the following statement absolutely, semantically correct:
"The router will forward a packet ...
1
vote
2
answers
6k
views
Isolate two networks in one switch (Cisco SGE2000)
I have a small lab, which has 15 systems for development environment and 5 systems for Testing environment. I have only one Cisco SGE2000 (24-port) Ethernet switch.
Currently all on 192.168.3.0/24 ...
1
vote
2
answers
358
views
Can different PC's in the same home on different subnets communicate and access data without internet access?
I understand basic routing and how a router is needed to communicate between subnets. What I do not understand is if internet access is needed for data to be accessed across subnets.
Thank you for ...
1
vote
2
answers
5k
views
Do machines connected to the same switch belong to the same subnet?
When we talk about a subnet - do we mean all the systems connected to the same switch?
If I have an assigned IP address of 10.0.2.1, am I in the same subnet as that of 10.0.1.39?
When we talk about ...
1
vote
2
answers
7k
views
What does it mean to be outside of subnet mask but connected to network?
My current subnet mask is 255.255.255.0 (CIDR /24).
But when I do a scan of my network with /16 mask (255.255.0.0), all kinds of devices appear connected to my network, some of them having local ip ...
1
vote
1
answer
678
views
Why don't DNS queries return the subnet mask?
Why doesn't the DNS server give the subnet mask of the queried host name? For forwarding to the next hop, the IP address as well as the subnet mask is required by the routing table matching algorithm (...