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

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Broadcast address for address 144.16.95.255?

I have doubt ! Problem is A subnetted Class B network has the following broadcase address : 144.16.95.255. Its subnet mask (a) is necessarily 255.255.224.0 (b) is necessarily 255.255.240.0 ...
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4 views

Bigger RRAS Subnet

Will RRAS work with a bigger subnet mask of 255.255.0.0? Basically I need to create multiple scopes for different groups of users, for example 192.168.2.0, 192.168.3.0 and so on. But I want only 1 ...
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28 views

Routing mistake on a bridged over wifi LAN

I have a problem with routing on my LAN. I understand why it didn't work but I can't see an elegant solution. In a multi-building site a MikroTik router is taking care of the WAN connection for ...
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17 views

2 APs over Powerline Network within same IP subnet cannot see eachother?

I am having issues setting up my home network using powerline adapters. My Setup I have a Gateway, a Router, 3 Powerline ethernet adapters, and a Powerline Wifi Unit (TP-Link TLWPA4220). All of the ...
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29 views

Subnet slash 22 setup with 192.168.5.1 gateway

I am trying to enlarge my ip adresses subnet and id like to pass from a /24 to a /22. So i set the following : ip : 192.168.5.20 subnet 255.255.252.0 and gateway 192.168.5.1 . the problem is that ...
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13 views

Creating a private sub-network on existing shared network

I'm a little new to networking, and am trying to set up a network for myself. The situation: I have two laptops and two smartphones. The apartment complex I live in gives me a single ethernet wall ...
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268 views

Weird response when I ping x.x.x.255

This is my computer network configuration: C:\Users\user>ipconfig Windows IP Configuration Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : Link-local IPv6 ...
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43 views

How can I directly access a PC in another subnet?

Ok so I have 2 subnets setup in my home network. There is a wireless router (with built in switch) connecting PC A (192.168.1.3) via a wire and PC B (192.168.1.101) via wifi. There is a wired switch ...
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22 views

Sharing IP block between two computers?

I'm not too knowledgeable in this matter so I wanted to double check here. Say I have a server hosted in a datacenter with a CIDR IP block 104.x.y.z/28, which makes a total of 13 usable IPs, not ...
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37 views

Two subnets: devices see others from the other subnet

I have two subnets x.x.10.0 and x.x.20.0 running under mikrotik router so RouterOs GUI, I have set two dhcp on ether2 and on ether3 interfaces a made address pools x.x.10.2 - 254 and x.x.20.2 - 254. I ...
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What is the diference between IP subnet mask 255.255.254 .0 … or 255.255.255.0? [closed]

What is the diference between IP subnet mask 255.255.254.0 and 255.255.255.0?
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49 views

Connecting two home routers and change to IP addresses

Netgear Cable Modem Router Connected to Internet IP 192.168.0.1 DHCP is ON D-Link Router This is my wireless router IP 192.168.100.0 DHCO is OFF I want to use the D-Link router as my primary router ...
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26 views

Subnetting Difficulty

Taking the following example shown in the first image, why has my teacher has assigned in the solution (image 2) for network one (N1): 7+2 hosts? Shouldn't it be 6+2 since the number of hosts in ...
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74 views

iptables on openwrt router: logging connections to a host from clients on the same subnet

I am trying to setup an auto wake-on-lan setup using my router that is running OpenWRT 14.07, Barrier Breaker. My idea is that the router monitors any connection attempts to the host I want to wake up ...
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28 views

Accessing ISP subnet resources?

This is my first question here so I don't know if I would supply all the relevant and required information. The situation: I have IPTV and Internet from the same provider. I managed to get the links ...
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65 views

Why need subnet when public IP available?

I am just entering into CCNA and there is a subtle concept of subnetting that is not going through my mind. My issue is when we have a private IP address, why can't that do the job - why do we have ...
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217 views

Why is ip address listed as 172.18.0.150/24?

Why is IP Address listed with this notation 172.18.0.150/24? I mean the ip is 172.18.0.150 only why it haves /24?, and then whatever what subnet that is on should be someone else's worries, no? 3: ...
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192.168.x.x with Subnet 255.255.0.0, would like to link with 192.168.2.x with subnet 255.255.255.0 [closed]

Is it possible to connect these two networks together, without changing the subnet? For example by putting a router in between. Network A IP :192.168.x.X Sub :255.255.0.0 Network B IP : ...
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112 views

Clients from multiple subnets can't simultaneously connect to server

I have setup servers for several games in the past where either players from outside my local network could join, or players from within my local network could join, but not both at the same time. ...
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4answers
121 views

Point of subnets

This page gives two options for if you have more than 254 hosts, get another IP range or use subnets. But if you've got an IP address range which lets you have more than 254 hosts, why not just keep ...
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19 views

Networking, Creating subnets

Am having trouble trying to create a small network for my office. I have two Asus RT-N12 wireless routers, internet connection from an ADSL modem, Windows server 2012r2 which I want to be my domain ...
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Does a typical home router support classless IP address?

All typical home routers I know of allow us to set a custom subnet mask, and because of this, I am really curious about whether they support the use of classless addressing scheme, meaning that in the ...
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35 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 ...
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30 views

Make Linux Notebook Act Like a Network Hub

I've been looking for a solution for this quite a while and I think that I am exactly as clueless as before. So I figured why not ask people who really know about this stuff... I'm trying to connect ...
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46 views

Router not allowed by landlord

I moved in to a student apartment building in Germany, and one of the rules on the list is that I cannot plug in a router to the network ports in the wall. I asked about this rule, and apparently ...
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78 views

Configuring VLANs/IP network for security and performance

My networking level of understanding is still beginner, so bear with me. I have several Ubiquiti products - USG (router), USW (switch), and UAP-AC (wap) installed in my home. I want to create ...
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46 views

Wirelessly “bridge” two subnets when in range of one another

Scenario: Subnet 1: Basic Home/Office setup with broadband internet, router, and a couple of computers. Subnet 2: Mobile trailer with a couple of computers and a router. Sometimes its in the ...
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How can you calculate IP address subnet ranges?

If you're given: Number of needed subnets: 2 Network Address: 195.223.50.0 I can answer the following: Address Class: C Default Subnet Mask: 255.255.255.0 Custom Subnet Mask: ...
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136 views

Tool to group a list of IP addresses into IP ranges

I look after a website that is currently being flooded with HTTP requests from different IP addresses but all using the same user agent string I've grepped the log file and now have a file with all ...
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55 views

Trouble With Network - Apple Time Capsule & Cisco SG-300-10P

How can I setup my network to allow access to devices connected to the Cisco SG300-10P switch from my Apple Time Capsule? My current network setup Comcast Modem / Router --> Cisco SG300-10P ...
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704 views

IPV6 at home: my ISP delegates me a static IPV6 /56 subnet, how can I set up an IP scheme & DHCP6 for my network?

My network looks like this: (Cable Modem/Router) <-> (PfSense Router) <-> (Internal Hosts) The IP (changed for security) of my cable modem is: IPv6 Address ...
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323 views

How to allow only subnet for port with iptables

What i am trying to do is to DROP any packets to specific UDP port, except those one from my secured subnet 10.8.0.0/24. iptables -t nat -A --src 10.8.0.0/24 -p udp --destination-port 63210 -j ACCEPT ...
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43 views

Question about subnetting with switch

I have a setup which includes desktop pc, server pc(would also act as router), raspberry pi and ethernet switch (and possibly other devices if I get new switch). I would like to know if this ...
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121 views

I can ping computer on a another subnet but not vice versa

So I got two routers in my house one wireless(192.168.0.1) and another wired(192.168.20.1), I got my laptop(192.168.0.101) hooked up to my wireless router and my desktop(192.168.20.5) on wired router. ...
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45 views

Using DNS to forward to a specific local address and port?

Im running a server on a local address, a raspberry pi at x.x.x.111:64738. I own a domain, mydomain.nu. I want to create a subdomain (the hosting provides a cPanel interface) and forward it to my ...
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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 ...
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Create a subnet with 2 FritzBox

I want to create a network split in a Main network (192.168.111.0/24) and a Subnet (192.168.100.0/24). In my Main Network I have a FritzBox 3370 WLAN, as a Router, that is connected to the Inertnet. ...
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956 views

How to link two routers LAN to WAN

My former modem was replaced by a all-in-one modem/router (10.1.9.1/24) after a speed upgrade. I still have my DD-WRT router (10.1.10.1/24), which I want to be my main router, i. e. as DHCP server, ...
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31 views

Different subnet for different device types

I have noticed a certain pattern in a wireless network. It goes something like this: All mobile devices (Android and iOS) take the subnet 10.8.5.x. All laptops (Windows and Linux) take the subnet ...
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106 views

How do I know if two machines are on same LAN?

I am very poor with Computer Networks, even though I took class in my grad school. I keep forgetting about subnets and masks and what not! Currently, I am playing with Docker and Erlang and was ...
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how to calculate network address of an IP with subnet mask 202.145.90.7/20? [duplicate]

how to calculate network address of an IP with subnet mask 202.145.90.7/20? How many hosts can be there?
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483 views

Communicating with devices on a different subnet

Let me start this off by saying that I am very new to how IP Address / Subnet Addresses work, and networking in general. This stuff is generally mystifying, and I've had a hard time understanding ...
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Switch after Router seems to create own subnet

I have a Router (Easybox 802) connected to the Internet. It has sockets for LAN-cables and a wifi-antenna. One socket of the router is connected to a switch (netgear fs605 v2) in another level in the ...
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Ping all machines using the same software [closed]

I want to make a software that can make connections to other computers that use the same software. (within a subnetwork) But I am stuck on how to make such a software that can ping its subnetwork and ...
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What is a “local” subnetwork [closed]

I understand that subnetwork, or subnet, represents all machines that belong to the same local area network (LAN). But I don't understand what it means by a local subnetwork. Can someone explain this ...
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596 views

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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646 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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68 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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51 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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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 ...