Questions tagged [subnet]

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

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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 ...
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Relationship of routers to networks

I was wondering, in networking, what is the relationship of routers to networks? Can the same router be the gateway for 2+ networks? For example, if I have a wireless router at home, can I configure ...
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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 ...
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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 ...
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Active directory sites and services

I have 192.168.1.0/23 subnet for wired connection and 192.168.2.0/24 for wireless connection. Do I need to add 192.168.2.0 in AD Sites & services. Right now I have 192.168.1.0/24 added in the ...
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Double NAT with access to both gateway web interfaces

I have a Cisco Linksys E3000 home router that I appreciate. However, my new (but temporary) ISP will want me to use their Huawei router for their service once I get connected next week. This creates ...
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how the pc1 checks pc2 subnet

pc1 and pc2 are different subnets Actually if a pc1 wants to ping pc2 at first pc1 checks pc1 & pc2 subnets whether they equal or not if not the frame will not cross the nic of pc1 my question ...
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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 ...
ayke's user avatar
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Connecting 2 different subnet masks

I'm no network genius, but I have managed to get most things running. I get confused about subnets and gateways though. We have an office server connected to around 20 PC's that all communicate fine. ...
Jonathan's user avatar
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Home network with two routers and just one Wifi

I know it is a pretty lame question, but I am not a pro in networking, so I will still ask it. And I will try to explain details where possible. I want to create the following setup: Phone line is ...
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Query site for given ip from AD sites and services

Windows Active Directory maintains a list of subnet to sites assignments (in "Active Directory - Sites and Services" -> Sites -> Subnets). The subnet-to-site associationas ar used, obviously, by ...
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How to find largest possible IPv4 network within specified range

Let's say, we are given a range of 192.168.101.64 - 192.168.102.128. What is the easiest way to find the largest possible IPv4 network within specified range, including network address, subnet mask ...
Sebastian Potasiak's user avatar
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Interview on network connections

I was on an interview for a web developer position and for some reason, in the test, there was a question about networks that sounded like this: Your PC ip address is (--something like--) 192.168.0....
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Identify the TCP/IP classes respectively by beginning octets

I am busy studying for a network exam and I am stuck with this zinger: By studying the following beginning octets, identify the TCP/IP classes respectively 1-126 224-239 240-254 The ...
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Add printer from different subnet

i.e My pc ip is 11.19.20.3 with gateway 11.19.20.1 I have a printer with ip 11.19.22.25 with gateway 11.19.22.1 How can I add this printer to my pc?
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How to setup two-way routing with Tomato Wireless Client mode (different subnets)

Currently I have a Netgear R7000 as my main router, with internet coming from a Moto Surfboard SB6141 Cable Modem. I have a Linksys E3000 running Toastman TomatoUSB connected to the R7000 as a ...
ach's user avatar
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How do I add subnets and VLANS into my network [closed]

First let me say I have posted this on cisco support forums and just copied and pasted into a new question for you here. Secondly I think I understand that to route through subnets I need a router ...
AdminOmid's user avatar
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Concise IP information in OS X Terminal

Is there a command for the OS X Terminal that shows you only the most vital IP configuration information about your machine? I know there is "ifconfig" but that brings up a bunch of (in most cases) ...
Axel Kennedal's user avatar
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Creating Subnet Mask [closed]

ive been set this task. given the network 140.50.0.0/16 Create a subnet mask for 400 subnets with the maximum possible number of hosts in each subnet. My question is how do i create a subnet mask??
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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 ...
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LAN and WLAN networks under same IP range

I'm a newbie in network stuff and haven't enough knowledge to do what I'm wanting for now, so I need your help, please. I've two networks, a wired and another wireless. The wired one is between two ...
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Subnet mask for maximum number of hosts?

How would I configure a subnet mask for a maximum number of hosts on a network segment? For example, let's say I need a maximum of 6 hosts per network segment for a Class C address.
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Ways to differentiate between home and office private network

Let us consider there are two networks 1) home network and 2) office network. I have an application which will get the system IP and MAC Address of the installed machine while launching the ...
satheesh91's user avatar
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2 routers, 2 subnets?

Firstly I will explain why I require this setup. I have bought an ASICMiner Cube for mining Bitcoin. It frequently stops mining until I reset it, which is quite troublesome. After reading the ...
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OpenWrt router acting just as a switch with another WAN from wifi client

I have here this networking problem I can't figure out. My situation is following: ADSL cable connection to WAN, provider's router/modem (some Zyxel), DHCP running, original firmware, not possible to ...
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Determine the best subnet mask for the 172.29.0.0 network, with 30 subnets and 1,100 host on each subnet

This was a practice question I found online: Question: You are designing a subnet mask for the 172.29.0.0 network. You want 30 subnets with up to 1100 hosts on each subnet. What subnet mask should ...
Austin ''Danger'' Powers's user avatar
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Why my subnet mask is not matching with my IP address?

I have a class 'B' IP address 172.16.XXX.XXX in my machine. My Subnet mask is 255.255.255.XXX. I am studying networking now. So until now I didn't care about masking about all. But from Wikipedia I ...
Anirban Nag 'tintinmj''s user avatar
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What is the first valid host on the subnetwork that the node 192.168.197.13 255.255.255.252 belongs to?

Does anyone have any ideas what the answer to this is? What is the first valid host on the subnetwork that the node 192.168.197.13 255.255.255.252 belongs to? I calculated the answer myself, but got ...
Austin ''Danger'' Powers's user avatar
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Communication possible between 192.168.0.x and 192.168.1.x?

I have a problem I encounter on a regular basis. I have an access point with a fixed 192.168.0.x IP address. My network is 192.168.1.x. The problem is when I plug the access point into my network, it ...
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Devices on subnet cannot access each other but can access internet

I live in university halls and only have access to the internet and the network through one ethernet port. I have a TP-Link R860 router (wired only) and a TP-Link simple switch. If I connect using ...
pratstercs's user avatar
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how do I setup my D-link DSR250n to use openvpn server

My aim is to make my Iphone connect remotely (and securely) to my home network and get from the DHCP (the d-link router) IP on the same subnet. This is because I have an client app that broadcasts on ...
DrorCohen's user avatar
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How do you route within an Amazon VPC subnet?

I have an Amazon Virtual Private Cloud that looks like this: 10.40.1.1 Internet Gateway 10.40.1.5 My OpenVPN Instance 10.40.1.100 My Windows Box What I want is traffic from the Windows box ...
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Remote network administration, solving 2 device 2 subnet merge

The problem: 1.) No Physical Access 2.) Very basic on site help 3.) Combining 2 subnets on 2 routers Now we know i cant go on site to move cords around so here are the current cord ...
Benjamin McDaniel's user avatar
1 vote
2 answers
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How to create a subnet at home with Linksys router

My home network consists of my ISPs router (Thompson TG585 v8) which is giving out both WIFI and Ethernet LAN connections on the 192.168.1.x range. The router's LAN address is 192.168.1.254. This set-...
user1012598's user avatar
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routing table, ip address for outgoing packet

Network Destination Netmask Gateway Interface 0.0.0.0 0.0.0.0 192.168.2.1 192.168.2.8 127.0....
Athapali's user avatar
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Why nic with incorrect subnet mask can still ping the gate way?

At first, my network config was like this: $ ip a 2: em1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 3c:97:0e:bd:b1:68 brd ff:ff:ff:ff:ff:ff ...
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How to Browse Machine on Sub-Network

How can I browse a machine on a sub-network? Our primary network addresses are at 192.168.1.x In our LAN we also have a little wireless Netgear router with some devices connected to it, which ...
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Sub net, 2^n or 2^n - 2?

To calculate how many bits I need to borrow when designing a subnet, is it 2^n = X or 2^n - 2 = X X being the number of subnets desired. I've found two websites each giving one of those ...
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Cisco Packet Tracer error "Invalid IP for this subnet mask entered"

im using cisco packet tracer configuring pc ip and this error came out "Invalid IP for this subnet mask entered"
WKW's user avatar
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192.168.2.xy can't access 192.168.1.xy (: 255.255.255.0)

My goal is to access my NAS from a PC, but NAS is not reachable. Situation Here is my network configuration: Router 1: 192.168.2.1 : 255.255.255.0 Router 2: 192.168.1.1 : 255.255.255.0 NAS: 192....
Micha's user avatar
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What IP's should the servers be assigned? [closed]

I have got 4 subnets (calculated using online calculators) The major network is: 172.16.0.0/16 The students subnet having the highest IP requirement /22 mask gets 172.16.0.1 - 172.16.3.254 as ...
user273284's user avatar
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Windows 7 can ping but can't see device on other subnet

I have 2 Windows 7 on 2 different subnets but 1 of them is unable to reach a NAS. The topology is as follow. Any idea why this is the case? Is there some Windows settings I need to apply? Subnet 1 ...
user192702's user avatar
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 ...
user2018084's user avatar
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4 votes
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Broadcast address in IPV4

I have a small network with the subnet mask 255.255.255.240 and the IP range is 192.168.2.1 - 192.168.2.12. From 192.168.2.1, I want to broadcast a packet. I don't want this packet to go anywhere ...
PermanentGuest's user avatar
1 vote
1 answer
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What is major network mask and subnet mask

I've been served with a question to find Major Network Mask and I've only given Host IP address and sub-net mask. I have to find the Major Network Mask using Host IP and sub-net mask. Another ...
Michael Gamage's user avatar
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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 (...
Matt's user avatar
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How to find CIDR subnet for a public Internet IP address?

Usually I do not worry about subnet of an IP address on the public Internet, but after I began using Amazon EC2 firewall, it got me thinking. EC2 firewall configuration requires an IP to be written ...
Howard's user avatar
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Regarding IP subnetting process

Professor taught the following scenario. An organization has purchased a Class-C address 216.21.5.0 and would like to use it to address its offices at Arizona, Florida and California. It has the ...
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Unable to Reach Phone's Web Interface

My network admin is out on vacation this week, so I can't get the answer from him. My office's network shares its bandwidth between its phones and its computers. The phones have IPs like 10.22.0.* ...
VenomFangs's user avatar
1 vote
3 answers
7k views

Network addressing without wasting IP addresses

I know how to do the classic "network addressing" when I am allowed to waste IP addresses. For example, if I need to hook up 9 computers, I could use a /28 subnet, which allows 16 hosts to be mapped ...
Einsteins Grandson's user avatar