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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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How to get an IPv6 subnet to use in Docker?

I have an IPv6 IP on the guest server which running docker 301b:e0d0:401:0348:lk19:7:0:2 Configuration in the /etc/resolv.conf domain my.domain nameserver ::1 nameserver 301b:e0d0:401:0348:505:7:0:2 nameserver 301b:e0d0:401:0348:506:7:0:2 How to…
rawmain
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How do I get an XP computer to send files to its archive when connected on different a different router?

Good day folks. I'm wondering if its possible for my portable ultrasound machine to send back its images to the central archive when its off in the wards doing scans. Here's the current setup - the archive (on a Windows Server 2008r2 x1000 NAS with…
Nolasco
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Ping between hosts with separate subnet

I have two hosts with different subnet Host1(Linux) has Ip Address of 172.29.1.xxx Host2 has IP Address of 192.168.1.xxx Host2 with 192 address can ping the host1 and all the servers with 172 address Host1 with 172 address can only ping the gateway…
user3784040
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Separate Azure VM's by using subnetmask on the Windows cliënt network interface

Can I put all my Windows VM's in one Azure Subnet and then separate them by using the Subnetmask on the cliënt OS. And use that way to group them for different customers.
Alfred
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CIDR ipv4 allocation to subnet

I have my VPC configured with 10.0.0.0/16 CIDR. I want to create around 7-10 subnets in this VPC. On my calculation, I have decided to have 8 subnets where each subnet can host 8192 resources (8192*8=65536). As per my calculation, 2^13=8192.…
vivek reddy
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Subnetting, networking, hosts?

my question is about subnet. Network is not allowed to be bigger than 15 000 machines. Which subnet should i use? Im looking at subnet calculator, but there aren't any subnets thats exactly 15 000 hosts. Either more or less. Thanks in advance!
user541371
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Can you statically route to a subnet-conflicting (but not IP-conflicting) device on WAN side of a router?

As the title suggests, I have a weird question. We had an ISP technician at a customer's home install a router in front of our own router and misconfigured it. The ISP router is now in front of ours and is on the same subnet as our router's LAN. I…
johnjohn
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Can't connect to a public accessible AWS RDS

I was running a serverless web application on a lambda inside a VPC, and connecting to a Aurora-MySQL RDS instance, with inbound rules to allow traffic from the security group of the lambda The connection was working fine, however, quite often the…
dfranca
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Access control for resources behind server

I would like to restrict VPN user access to a single LAN. I've been trying to wrap my head around the client-config-dir within the server.conf but can't get it working. +---------+ +---------+ | client1 | | client2…
Kam-ALIEN
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How to add permanent route with Netmask?

I am new to linux. I want to add below permanent route: [root@Docker1 ~]# route -n | grep 10.246.179.0 10.246.179.0 0.0.0.0 255.255.255.192 U 0 0 0 eth0 I added a file named route-eth0 in network-scripts as…
Garima Rastogi
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Access to openvpn client subnet

I have been struggling to access to vpnclient subnet from a vpn server. Both server and client run on a linux box with openvpn.Tunnel is established properly. Firewalls on server and client are disabled. ------------------ -------- …
Rinos
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Access one IP from outside of the subnet on the same network

I have a network which has for example the subnet 172.20.1.0/24. On this, I have one embedded device that tries to access http://192.168.1.1, which is hardcoded. Without making physical changes to the network I would like that device to get a…
jdm
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Configuring subnet between machines with bonded network cards

Two machines have bond0 configured to access the Internet. Technicians in datacenter say the VLAN is created, I just need to configure interfaces on servers to work with it correctly (create a subnet). What I have right now: auto bond0 iface…
mekkanizer
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Network setting for similar looking subnets

I have a CentOS 7 PC (with 2 NIC cards) and 2 servers. I'd like to access these servers from the 2 NICs in a different way. Something like one server can be reached only from NIC1, and the other server should be accessed only from NIC2. I've…
Bert
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Why does 172.16.0.0/12 equal to range 172.16.0.0 -- 172.31.255.255?

So we have a private network: 172.16.0.0/12 that means: 10101100.00010000.00000000.00000000 (value: 172.16.0.0) 11111111.11110000.00000000.00000000 (subnet mask of /12) How does that translate to the: 172.16.0.0 -- 172.31.255.255 range? Based on…
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