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

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OpenVPN: Route only specific subnetwork through vpn - works for single IP adresses

I was trying to route only specific subnet/single through open vpn. I have read several questions like this on superuser, and even found good answer to my question. So I am now able to route single ...
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25 views

Network Config (Alcatel GPON (I-241W-S) & TPLink TL WR1043ND)

I have a fibre to home internet solution configured at my place, the Alcatel GPON receives the fibre cable and a LAN cable is fed from it to the TP Link router where the ppoe connection is etablished ...
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28 views

Subnetting an already subnetted address further

I'm a little lost with a question given by my instructor in class and just wanted some clarification on my work. The question is - Given: IP Address: 133.64.128.0 /24 Want: 37 networks ...
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35 views

Split current network installation in two Vlans

here I got a (really) tricky problem In my home I have a basic router from my ISP and the DHCP Server that serves every mac address with a static IP in this configuration : Family devices : ...
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24 views

virtualbox pinging from one subnet to another

I'm using virtualbox and I have 3 virtual machines, there's the middle vm which is a Linux Fedora 20 which has two interfaces connecting each to one subnet, the other two vms is one also a Fedora 20 ...
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33 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 ...
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86 views

Why is it improper network design to have two physical NICs, one machine, same subnet, same netmask, same gateway, two different IP addresses?

All I read and can see says to put two different IP addresses on one NIC. I thought if I had two NICs, I'd be better off for speed/throughput. Why is it a wrong topology to have two separate ...
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49 views

Quick way to calculate subnet IP and broadcast IP

I'm having trouble findind a quick/effective method to determine valid IP range based on given router IP and netmask I know how to calculate the subnet IP and the broadcast IP by converting all the ...
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45 views

Subnet Masking vs Routing

To extend a network beyond the amount of 254 hosts, there are basically two options, if I understood it correctly: I could use a second network, having a different network prefix and connect the two ...
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124 views

unable to ping my win7 computer from an another computer in different subnet while I could do the opposite

subnet A(192.168.137.0/24) has P(192.168.137.1) and Q(192.168.137.2) computers subnet B(192.168.7.0/24) has Q(192.168.7.1) and R(192.168.7.2) computers P is my windows 7 computer connected to ...
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64 views

How do I create subnets given these constraints?

I am trying to tackle the following subnetting problem: Prepare subnetting for an organization that requires 2000 hosts to be placed on the network. The maximum number of hosts on a subnetwork is 300. ...
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104 views

How to connect 2 home routers to connect 2 separate networks?

I don't know if it's a silly question, but I'm not very good at networking. So please help me out. I have a Netgear WNDR4500, and I configured my PCs and virtual machines setting the WNDR4500 ...
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30 views

How to calculate subnet of your interface based on the destination IP and subnet?

I am new to networking and linux so I am not able to fix this problem. I have a power controller connected to my linux PC (eth0) through a switch with the default static IP of 192.168.1.100 and subnet ...
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129 views

Cant ping to computer but reverse ping can

So Computer 1 can ping to computer 2 but reverse it can't Setup : router A (192.168.0.xxx) 255.255.255.0 > Router B (192.168.1.xxx) 255.255.255.0 So computer1 on Router B can ping to computer2 on ...
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409 views

how to split up network into two subnets with only one router

I have one router on my home network. This acts as the main WiFi access point for all devices, as well as being connected to a simple switch for my home lab. I would like to be able to isolate my home ...
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70 views

Arch Linux device with static IP address, new router not finding the device

I have a device running Arch Linux on my network (Raspberry Pi to be exact) and I do not have a cable for the display. I typically used it by ssh client and had it configured for a static IP address ...
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55 views

IPv6 subnetting - coverting decimal to hexadecimal

I came across a question on IPv6 subnetting, You work as a branch network administrator of a large company with offices in many cities around the world. The corporate network is currently in ...
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82 views

Subnetting based on networking needs

I am unable to visualize the solution to the following question Your company has obtained the 131.107.168.0 /21 address space from an ISP. You now need to design this address space to accommodate the ...
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47 views

Is it possible to sniff packets on other subnetworks?

I've been reading about packet sniffing and was wondering if it's possible for someone to sniff packets on subnetworks other than the one they're on. Since the point of a subnetwork is that devices ...
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78 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 ...
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23 views

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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139 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 ...
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217 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 ...
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50 views

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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53 views

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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399 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 ...
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818 views

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. ...
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837 views

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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24 views

Should we load smaller subnets into Active Directory

Our network team is splitting up the subnets in each of our offices from /16 and /18 subnets to multiple /24 subnets. Our systems team is not changing Active Directory sites and services to replicate ...
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220 views

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 ...
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60 views

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--) ...
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34 views

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 ...
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29 views

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 ...
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164 views

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 ...
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226 views

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) ...
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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 My mask is 255.255.248.0 I have an IP range from 172.16.0.0 to 172.16.7.255 255.255.248.0 11111111.11111111.11111000.00000000 Network------------------------- ...
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179 views

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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101 views

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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51 views

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 ...
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129 views

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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694 views

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 ...
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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 ...
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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 ...
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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 ...
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5k views

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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279 views

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 ...