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.

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Network issue in Linux Client

In the attachment I described my issue visually, can anyone suggest me that where could be the issue. The Green Color means, successful communication, and Read color means failed communication. For ...
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Route Table Multiple Subnet Entries?

So just as a bit of context, this is for a VM running that does call processing. So I was looking at the route table on the VM, and noticed that it has this: 12.12.12.64/28 dev bond15 proto kernel ...
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connecting 2 wireless subnets via a modem [closed]

I have a Xfinity modem with 2 ethernet ports (modem IP is 10.0.0.1) I have 2 wireless routers connected to the Xfinity modem each wireless router has its own subnet. ( 192.168.1.x and 192.168.3.x) ...
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Serial Interface Network Address Decreased by One In EIGRP Configuration In Packet Tracer

I'm trying to implement EIGRP on the following topology The problem is, whenever I assign the network IP to a serial interface in EIGRP, the IP decreases by one. For example, when I use network 197....
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Circumventing Subnet Security

My understanding is that subnets are contractual agreements between hosts on a network. Assuming all hosts are connected on layer two, subnets would provide no insulation from an attacker attempting ...
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Manually subnet an IPv6 Prefix Across Multiple MikroTik Routers w/out Prefix Delegation

I want to configure my network so hosts can IPV6 auto-address Global Unicast Addresses ("GUA") using SLAAC. I have a ::/48 (assigned by Hurricane Electric) that I want to divide into subnets and ...
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How to deal with OpenVPN subnet collission?

My home subnet is 192.168.0.0/24 and very annoyingly cannot be changed at present. I want to connect from remote networks via OpenVPN but obviously frequently find myself on subnets that have ...
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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:...
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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 ...
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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 ...
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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.
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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=...
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Export all Azure subnets in all Subscriptions

I have been attempting to get a CSV of all vnets / subnets in all of my subscriptions. Is there a better way to do this? My first time with HashTables Thanks In Advance! $now = Get-Date -UFormat "...
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Is it possible for limitation and sharing bandwidth in subnet by using htb and assign SFQ on leaf class?

I have a 100mbit link. I have two subnets (192.168.10.0/24, 192.168.20.0/24). I want each of online ip addresses in subnet 192.168.10.0/24 has equal bandwidth. with htb, class, filter, SFQ to this ...
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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 ...
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Subnet to subnet forwarding traffic

I'am wondering how to forwarding traffic from a gateway to subnet. network setup I have this working setup, Host A behind tunnel can ping HOST B 10.151.0.1 but not HOST C 10.151.0.2. If I TCPDUMP ...
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How large does site-to-site VPN subnet need to be?

Users on the data VLAN in our HQ and future remote office(s) will need to access files, floating network licenses etc. from distant servers, so we will need a site-to-site VPN for the data network(s). ...
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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 ...
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Problems to change the IPS range of docker subnet

On the development server of the company where I work, IPS priority problems sometimes occur between the developers PC IPS and the docker subnet. To solve this, I modified the daemon.js so that it ...
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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 ...
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Create smaller subnets from a large subnet which overlaps

Historically our network is a 10.15.0.0/16. But now we must break this up into smaller subnets (company policy) for example 10.15.3.0/24 and when the transition is finished the /16 subnet will not be ...
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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. +---------+ +------...
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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 ...
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How to find subnet associated with IP in Azure

I got IP address of Azure VM - it can be public / private IP. Is there any way to find Azure Subnet associated with that IP Address through azure java api?
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Proxmox VM can't ping outside but host

I'm trying to configurate my proxmox but something is faulty and I cannot see what really it is. I hit almost every google search result and almost every post on the forum and still can't see what ...
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Azure VNets Inherit/Share Gateway Subnets?

I have VNetA being used in my environment - along with a webapp, webjob and 2 VM's in subscription A. I tried to setup VNet Integration for the webapp but I can't because my VNet is missing a gateway ...
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Enable Azure Web App VNet Integration w/ Peered VNet

This is for a client project - I have a standard web app, webjob and two VM's in VNetA. I need the webapp and its webjob to read data on a specific port on one of the VM's. I tried to setup VNet ...
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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 ...
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Sharing public Wan IP Subnet between 2 locations (Site to Site WAN?)

An ISP has allocated us a /27 to use. We need to use some of the IPs within the /27 in a separate location where the ISP (transit) is a different ISP. Public IP Subnet (/27) <=> Pf Sense (PF A) &...
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In AWS, we cannot access EC2 instance when specific EBS volume is mounted, why?

I have an EBS volume with all my configured mail servers, exchangers, and webmail interfaces on it. The problem was, we created a new subnet for this instance because it needed a different EIP. After ...
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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 ...
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Can't connect to subnet via OpenVPN with forwarding with iptables

I have a small switched subnet with a few devices that communicate with IP. They are connected via ethernet to an ODroid running Ubuntu 18.04 that is also in an OpenVPN. (The ODroid is connected to ...
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Can a router have the same ip on both sides?

I intend to implement an interconnected star topology network. For this, I am using 3 routers: Router A, A1 and A2. internet | Router A 172.16.0.1 /16 ...
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how do you determine the IP address of the top level gateway if there are subnetworks?

I posted this somewhere else, but someone suggested I ask it here. I live in a community that "provides" internet service to homeowners. So, in essence, the community has a fixed IP address, then ...
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Attach NSG to Existing Subnet Using ARM Template

I'm looking to create a Network Security Group (NSG) in Azure and attach it to an existing subnet using an ARM Template. I've already come across this site: https://github.com/Azure/azure-quickstart-...
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Is it possible to change subnet in EC2 without terminating the instance?

I'm fairly certain that it isn't but I want to be 100% sure if this is the case. I looked over the docs here and it just mentions that we absolutely have to terminate the EC2 before deleting it but ...
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Subnet and VLAN addressing in a Datacenter

I am trying to learn Datacenter networking and I am finding it hard to understand best practices for IP Address and VLAN assignment to servers and racks. For my question, I'll assume a typical 3 ...
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Routing to a different Subnet through VPN

im facing the following problem and after 2 days of own research and a huge amount of trial & error i could use some help. Situation: 1 Company, 2 Offices. Both are connected by a BVPN(Branch ...
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Site-To-Site VPN: Reachability of bridged devices in subnet

I have the following problem. I have established a site-to-site connection via IPSec between a virtual network in Azure and a Raspberry Pi at my home. The Raspberry Pi is connected via cable to my ...
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Accesing device in another subnet through router OpenWRT

I'm trying to setup communication between device1 and PC. The network diagram: https://i.stack.imgur.com/OdbTJ.jpg What I need is an acces to Device1 from PC in network configured as shown above (...
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How can I ensure openVPN clients persistently take the same IP address?

How can I ensure openVPN clients persistently take the same VPN IP address? I have added client-config-dir ccd to openvpn.conf and created files in /etc/openvpn/ccd/ with the names of the clients eg. ...
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How to route only specific subnet to OpenVPN Server

I want to route only traffic for 192.168.255.0/24 through my remote openvpn server. This answer suggests adding the following to the client .ovpn route-nopull route 192.168.255.0 255.255.255.0 ...
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AWS external static route when IP falls with VPC CIDR

I have a local network 10.10.0.0/16 In a private subnet I have the following in my route table: 10.10.0.0/16 local 10.10.2.3/32 <vgw for vpn> (this doesn't route) 10.102.0.3/32 <vgw for vpn&...
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Chain two VPN subnets via VPS

I need to chain two subnets via VPS according to this schema: 192.168.1.0/24 -> VPN client -> VPS <- VPN client <- 192.168.2.0/24 So I want to reach, for example, 192.168.2.2 from 192.168.1.0/...
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Feasibility of having two independent subnetworks on interconnected switches

I have the following setup, using two standard cheap switches that are interconnected by a long Ethernet cable: |------ SWITCH #1 | [ ] Equipment with public IP 217.x.x.101 (subnet 217.x.x.96/29) | [ ...
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Need ideas to move a server from one subnet to another subnet withing the same datacenter?

We have a Oracle production instance running in application subnet where multiple application are accessing the database from within the subnet(172.17.x.x), Unfortunately, the database is very old and ...
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How to connect subnet on second NIC to internet

I tried googling for a while, but I can't put my problem to a good search query so I can't find an answer for what I'm trying to do. Here we go: I have 3 PCs that I'm trying to connect with my own ...
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In IPv4 Subnets - a /23 - How do we know which range to use? [duplicate]

Let's assume I don't know what my IP range is, or my default gateway, but I know my IP address is 192.168.5.38 and my CIDR Range is /23. How do I know what my IP range is? Is my range 192.168.4.0-...
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OpenVPN - Access to other client private network

I know that this title seems to be "over answered", but really I had no luck while searching... EDIT: I've updated the diagram and the question, to be more precise To better explain my situation, ...
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openvpn subnet conflicts with wifi subnet

When using openvpn at home, I have a very simple configuration file because my home subnet uses 192.168.1.* so when I run openvpn --config client.config my routing table looks like: Kernel IP ...

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