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Questions tagged [subnet]

A subnetwork, or subnet, is a logically visible subdivision of an IP network. The practice of dividing a single network into two or more networks is called subnetting and the networks created are called subnetworks or subnets.

A subnetwork, or subnet, is a logically visible subdivision of an IP network. The practice of dividing a single network into two or more networks is called subnetting and the networks created are called subnetworks or subnets.

Subnetting provides a way to use the number of IPv4 addresses in an optimal way. The previous notation with classes caused a lot of IP's to remain. In the beginning this was not a problem, but these days IPv4 addresses have already depleted at the top level.

Source: wikipedia

Tutorial on subnetting

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Network Clients receiving DHCP responses from wrong subnet

This is my first time posting and I have searched for similar question to the best of my abilities yet believe none to be helpful for my cause. My problem is, that I have a Fritz.Box 3270 as router, dns and dhcp connected to the clients on my…
Adrian
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private network with single IP multiple servers

I am trying to set up a subnet in our company. We got several (10+) Linux servers for computing but we can only get 1 static IP (company policy, 10.x.x.x address). So the idea is to place a routing device in between the network and our servers that…
Jeffrey
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Some computers in my subnet do not recognize names of other pc's

I have two subnets: 192.168.0.1-255 192.168.50.1-255 Ewerything works via VPN (because physically computer from both subnets are in different locations). We also have active directory. Now, the first subnet has all the main servers etc. Computers…
user218133
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Can 2 IP's in the same network communicate with 2 different netmask

I need to expand a network really quick and don't have time or access to change the netmask of all devices. Can the following communicate? IP 1 - 192.168.10.10 mask 255.255.255.0 IP 2 - 192.168.10.15 mask 255.255.0.0 Our switches we don't have the…
nennis2k4
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How to integrate a separate sub-network within a customer's existing LAN?

I work for a machine builder, and our system has it's own ethernet network (192.168.1.x) with a switch and a dozen devices, most of which have firmly established static IP addresses. For our next job we will be integrating our machine/system into…
BCA
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Configuring several subnets on a single IP

Is it possible (and correct) to configure one single IP with several subnets? For example: ip subnet 172.30.176.17 172.30.176.0/23 172.30.176.17 172.30.176.0/24 Is this a valid and sound configuration?
ptikobj
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Communication between different subnets with different masks

I was wondering if there is any way to communicate between two networks with different mask. For example: Network 1: 192.168.0.0 / 29 Network 2: 192.168.0.8 / 28 (which takes from the last possible position after Network 1) This would be the…
Pit
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Subnetting 2 subnets, 127 hosts on /24 class b network

I have an upcoming exam in networks communication. One of the available tasks for training on subnetting is the following: Suppose you are an ISP with a 132.1.32.0/24 address block. If 2 customers require addresses for 127 and 60 computers…
nenne
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a special case about subnet mask calculation

I have an IP addresses 192.168.2.0 and a subnet 192.168.1.0/10 And I have two questions. (1) Is 192.168.1.0/10 legal? As the 9th least significant bit is not 0. And if (1) is true, does 192.168.2.0 belongs to this subnet? According to the…
ZHOU
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determine IP for device

I am configuring an eth1 interface on in Red Hat, but I don't understand exactly what the IP address should be. I'm given an IP of 10.237.128.0/25. This means that the NETMASK would be 255.255.255.128; I understand this portion. What I don't…
alrightgame
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need to figure out this subnet mask please is it correct?

Possible Duplicate: How does IPv4 Subnetting Work? The largest subnet has 300 hosts so I am trying to workout the number of host_id bits I require for the mask but I am confused as each octet goes to 255 max? So do I carry on in the next octet…
Jatinder Singh
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why I can not access a client on different sub net mask?

Possible Duplicate: How does IPv4 Subnetting Work? My computer is on a domain netowrk (joined as domain member) with IP of: 192.168.0.x (DHCP from the DC. I am trying to RDP to a computer which is on the same LAN, but under a different IP sub…
Saariko
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Allow 2 different subnets to have access to the internet but not each other

How would I go about getting say 10.0.1.100 and 10.0.0.100 to both have access to the same internet, but not see each other. My Topology can change to make this happen. Currently I have a router/gateway which connects to the internet via LAN…
Mint
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Network traffic across different (sub-)nets, how does the route get determined?

Possible Duplicate: How does Subnetting Work? Imagine there is a small network with 2 subnets. Both of the subnets have their own switch (means: all machines on that subnet share the same switch). Both of the switches are connected to a router.…
alejandro
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VLSM network subnetting and expanding of ip range

I have a subnet/vlan which is almost full I want to expand it basically my layout currently is below: VLAN ID Useable IP Range Network Mask 10 192.168.1.1 to 192.168.1.14 255.255.255.240 20 192.168.1.17 to 192.168.1.30 …
drwtsn32
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