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

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how to set up subnetwork at home?

I'm trying to achieve something that, I believed would have been very simple to set up, but I'm struggling at making this work. Basically, I have a ISP router with an internet connection, from there, ...
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IP overlap with cisco packet tracer simulation

PC 1 Network IP fa1/0: 192.168.1.7 /27 IP range: 192.168.1.0-31 Subnet Mask: 255.255.255.224 Router - When I type in the router IP fa1/0: 192.168.1.7 255.255.255.224 I keep getting error saying that ...
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8 views

MS Routing Server not routing from Hyper-V External Adapter

I've searched this issue but i'm not able to resolv it. I'm not able to route to a subnet! Here is a high level overview of my env: Network Overview What does work: From the MS Routing Server: ...
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24 views

How to access a pc on local network from main network

We are in college and every room of two people has only one lan port. We belong to a college subnet: 172.31.80.218/26 Now I am connected to our lan port and have the above IP. I create a wifi hotspot ...
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40 views

How can I make my routers interconnected?

I work in a small business that has seven of the same routers around the building, which means seven SSIDs. What I am wondering is, is there anyway to make them interconnected so that they can ...
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2answers
50 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, ...
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3answers
34 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 ...
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2answers
32 views

Windows subnetmask, what's the use?

I'm in a company network where we're using two subnets: 192.168.0.* and 192.168.3.*. These are my IP's: 192.168.0.97: PC / testserver host 192.168.0.108: laptop 192.168.3.192: mobile phone The ...
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Linking Subnets Over DDWRT Wireless Client

This ones had me going for a few days. I have a Uverse supplied Motorola NVG589 that supplies our TV, phone, and wireless internet. In my room I have some networking gear which include an ASUS ...
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12 views

Route all WAN traffic from a subnet through a separate ISP-connected subnet

I have 2 routers that I will call, HOME_ROUTER and WORK_ROUTER. HOME_ROUTER is for home use and is connected to my ISP and WORK_ROUTER is for work use and is connected to noisy video encoders and ...
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26 views

Windows 7 firewall different subnets

I'm on a large company network with different subnets. There are a few win7 computers that I have admin rights on, but I'm not able to access their drives through different subnets. I can access the ...
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Class c private address of 192.168.1.0 what subnet for most amount of host addresses?

Can someone help me out? I'm sure it's 255.255.255.192 since we have to make it into 3 networks. Am I correct? You are the network administrator for a health authority in Idaho. The administration ...
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3answers
53 views

What are the best Subnet IDs for maximum number of hosts?

I need help with this problem. I know it must be either A or D since subnet mask 255.255.255.224 has the most amount of hosts. I'm confused on subnet IDs could anyone clarify why subnet ID 224 would ...
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1answer
27 views

Guest Network and NAS

I am trying to setup a network where I can achieve several things. I might be overthinking this, but here is how I envision it working: I am willing to use 2 or 3 routers I want a network or subnet ...
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20 views

Cascading Cisco RV180 and Linksys E2000

I am trying to cascade 2 routers in my home network. I have an Actiontec DSL modem connected to the WAN port of my Cisco RV180. I am trying to connect a second router, a Linksys E2000, to my ...
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2answers
31 views

What is the correct subnet mask to use on a Class B network with a 10-bit subnet identifier?

I thought it was D but I got it wrong does anyone know what the correct answer is and why? A. 255.192.255.255 B. 255.255.255.192 C. 255.255.192.0 D. 255.192.0.0
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2answers
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What is the correct formula for calculating the number of subnets or hosts you can create with a given number of bits represented by x?

I'm pretty sure it is 2x-2 but want to make sure I am correct. Anyone have a say and why? x2 + 2 2x + 2 2x – 2 x2 – 2
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I FUBAR'd the IP, subnet, and VLAN settings. Now how to access managed switch?

I have a Dell powerconnect 2748. I think I have done messed it up though when setting it up because so far I have not been able to access the webconfig of the switch after I changed some settings I ...
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2answers
118 views

How to find subnet mask only knowing the usable address

I'm studying for certification and during a simulation I stumbled in question that made me realize I wasn't so sure about calculating IPs and masks stuff. There it is: A company has a forest with 4 ...
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1answer
21 views

Semi Network Isolation

Warning: I sincerely apologize for any kind of ignorance displayed on my part. I am not a network engineer and I do not know anything more than how to mod routers into network switches and plug in ...
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47 views

Given starting network, how many subnets with 128 address can you form

Given a starting network of 172,20.12/24, how many subnets with 128 addresses can you form? I thought the answer was 8 because 2^8 - 2 = 254 > 128 but that's incorrect It also asks for the first ...
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36 views

Server is missing default gateway information?

I'm studying for my Network+ Exam. I'm going through some practice questions, and this one has uber-stomped me in the brain. I've been going through my textbook too, and can't find a concrete answer, ...
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3answers
182 views

Dividing a network into subnets

I'm finding it very hard to understand IP subnetting. The things I already know how to do: Given an IP-adres and a subnet mask, I'm able to find all ip adresses in the subnet. Given an ip adres like ...
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Subnets on hyper V

What I'm after is a hyper V host, hosting around 6 vms. 3 of them on 1 subnet 3 of them on another And I want them all to have internet access The 2 subnets don't have to communicate. I'm using ...
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207 views

How to create a subnet between two different networks

I need some help to build my first subnet between two routers. My office is located near another office, and those two offices are linked together with a network cable, and both offices have ...
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subnet id, why option (2) is wrong? [closed]

An Internet Service Provider (ISP) has the following chunk of CIDR-based IP addresses available with it: 245.248.128.0/20. The ISP wants to give half of this chunk of addresses to Organization ...
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74 views

Ubuntu ethernet connection and wireless access point on the same subnet

I am running Ubuntu 14.04. I have a usb wifi adapter that has AP according to iw list. Currently my ethernet (eth1) connection's address is 192.168.1.108, and my wireless (wlan0) access point's ...
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Are subnets always contiguous 1s? [duplicate]

I understand the basic premise behind subnet masks, such as 255.255.255.0. But all the subnet examples I’ve seen have been (from left-to-right) contiguous 1s (HI bits). For instance, 255.255.0.0 (/16) ...
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26 views

How to tell if a dedicated subnet is available to a Linux server?

I'm trying to install Kubernetes and am reading an article about it that states: One key assumption that Kubernetes makes is that a dedicated subnet is available to each minion server. So I ask: ...
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82 views

VLSM: Any easy way to learn it

After my first year at university our teachers decided to make VLSM exams and exercises a bit harder. For exactly 1 year ago we got 3-4 hours to subnet using VLSM and then start with Packet Tracer ...
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Traceroute hops in the same subnet

in what case is there two neighbor hops in the same subnet in a traceroute output? As I know it should be only source addresses and each router interface should be in different subnet? E.g.: 1 ...
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IPv4 Routing/Subnetting

Suppose there is a setup like below: ------ -INTERNET- ------ ...
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Trying to understand the interactions between two different subnets on the same network

I have a 10.0.0.0/8 network split into two parts. A DHCP server hands out addresses 10.0.0.10 to 10.0.0.150 with a class A mask (255.0.0.0). This is my “Guest” portion of the network. Authorized ...
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97 views

Broadcast address for address 144.16.95.255?

A subnetted Class B network has the following broadcast address : 144.16.95.255. Its subnet mask (a) is necessarily 255.255.224.0 (b) is necessarily 255.255.240.0 (c) is necessarily 255.255.248.0 ...
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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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138 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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86 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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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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41 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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336 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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1answer
153 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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1answer
33 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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1answer
160 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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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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1answer
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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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202 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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51 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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1answer
102 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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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: ...