Questions tagged [virtual-network]
The virtual-network tag has no usage guidance.
99
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Issues with configuring hub and spoke routing in Azure using Azure FW
I am having some issues configuring hub and spoke routing in Azure using Azure FW.
Current architecture
SpokeA – [Hub with Azure FW and VNG] – SpokeB
Configuration
A User Defined Route (UDR) on the ...
- 101
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24
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How to access Public VM IIS from internet in AZURE?
I have below things: 2 VM inside 2 subnet all are in Vnet1. VM1 has enable IIS, VM1 and VM2 Assign public IP.
VM1 has assign public IP and I need all traffic from public IP of vm1 from VM2.
INTERNET &...
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DNAT From Virtual Network Gateway
I have a client connecting to my Azure Virtual Network Gateway (Gateway1) that sits in a Virtual Network (ClientVNet1: 10.13.0.0/16). I want the client to be able to connect to my DB (10.4.2.5) in a ...
- 171
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Why is traffic routed between different veth devices?
I have a problem: there is unexpected route path between virtual network devices.
Let's create two independent veth-peer device pairs:
$ sudo ip link add veth0 type veth peer name peer0
$ sudo ip link ...
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Two tap device can't communicate over bridge
I want to exchange Ethernet Packet between two tap device(for implementing TCP/IP protocol stack in usermode).
The problem I encountered is that tap1 and tap2 only can receive broadcast packet through ...
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34
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Multiple Virtual Network Gateways in Azure
I have the following parties:
Org1 - The owner of the application that is being built
Vendor1 - The 3rd party that build the application
Client1 - A consumer of the application
Clinet2 - A consumer of ...
- 171
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1
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48
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Routing between two Cisco CSR1000v instances on AWS
I'm building a lab in AWS with Cisco CSR1000v virtual routers. I've tried both the below options.
In option 1, there's no way to force the traffic from linux1 or 2 to the respective CSR routers since ...
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71
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Can't add existing Virtual Network to Virtual network gateway in Azure
While creating the Virtual network gateway and selecting the vnet, it says the VNet is "in use".
VNET address space is 10.0.0.0/16
Any idea why I'm getting this error?
I created a new ...
- 327
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319
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Connecting two VMs running in KVM
Short: Get two VM's to talk to each other running on same hypervisor.
I have two VMs running under KVM and I am trying to manage them via Cockpit.
The hypervisor, and the vm's are running Ubuntu 20.04....
- 111
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64
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Setting up a virtual environment for STP testing
I'm looking to create a test environment for STP / RSTP. I eventually came by this post that suggested using namespaces. It seemed like that was exactly what I'd wanted to create the simplest STP ...
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115
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How would I make a network topology on KVM analogous to the internal network configuration on virtualbox?
The differences in documentation between KVM docs and virtualbox docs make it difficult to find what I'm looking for
My goal is to do something like https://resources.infosecinstitute.com/topic/...
- 101
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552
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Azure: How to add CosmosDb to VNET properly
I have a question about ComsosDB and VNets. I would like to add my WebApp in its own Vnet aswell as the ComsosDB in its own. But for me its not sure how to add CosmosDb to a Vnet. According to this ...
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1
answer
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Azure virtual network location tradeoffs
I was simply curious if there were tradeoffs in choosing a location of a virtual network. For example, if many of the resources and existing v-nets are in the West region and I want to deploy a new v-...
- 115
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868
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Why is my docker registry refusing connections from VMs in my local network but not the host?
For context - I am attempting to deploy OKD in an air-gapped environment, which requires mirroring an image registry. This private, secured registry is then pulled from by other machines in the ...
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1
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486
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Error message: No virtual network in this subscription - when Trying to add a peering
For some reason, I am not able to select any virtual network when Adding Peering. E.g., I am trying to add a peering between vnet0 and Vnet 1, but when trying to select virtual network. There is a ...
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378
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DHCPOFFER not crossing virtual bridge on Linux?
I have a physical host machine running Ubuntu 20.4LTS (fully patched) attached to my network, which retrieves it's IP address via DHCP. This works.
I have a VirtualBox VM on that host attached to a ...
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Azure: How to give an VM a NAT address and make the VM only accessible from specific IP address?
I am new Azure, and I just finished creating my first VM. Now I want to give the VM a private IP address (10.0.0.200), and make the VM only accessible from specific public IP addresses. I want the ...
- 25
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115
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Azure Virtual Machine Firewall
I have multiple virtual networks, a VPN VN with site-to-site VPN, an AADDS VN, a production website cluster of virtual machines on a VN and a test website cluster of virtual machines on a VN. I also ...
- 137
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88
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How to switch Vnet of a Azure VM?
As per our requirement, we have created two Vnets in Azure. The Vnets are connected to each other by virtual network gateway. They can communicate with each other. One Vnet is assigned to a VM. We ...
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88
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In a Hub-Spoke configuration of VNets in Azure, do I need to create peer connections between spokes?
I'm setting up a simple hub-spoke configuration of VNets in Azure. Hub contains a VPN gateway then creating spokes for storage, compute etc. My main concern is latency so I'd rather not setup custom ...
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1
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453
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Expose Container in virtual network to public Azure
I have an Azure cosmos DB instance configured to allow access from a private virtual network: icy-horizon. I also have an API deployed using Azure Container Instances with port 80 exposed attached to ...
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2
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731
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Azure SQL Server - Firewalls and virtual networks - Azure ignoring my virtual network connection
I'm trying to connect to an Azure SQL server instance via a virtual network. I have it set up and it's connecting fine. Then I added the vnet to the Firewalls and virtual networks. Endpoint status is '...
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Difference between VMWare Bridged network and Docker ipvlan/macvlan?
In Virtual Networking, I have seen two techniques to connect the guest machine with the Host machines network.
In VMWare/VirtualBox - Bridged Networking is used to connect the guest machine with the ...
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204
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Does the linux bridge have in-built DHCP and DNS server? [closed]
Does the linux bridge have a dhcp server built in to the bridge software?
And does the linux bridge support working as DNS-Server or it can only point towards the DNS server on the host or none. If ...
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2
votes
1
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590
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Bridging two (a physical ethernet with a virtual ethernet) different subnets on linux?
I am thinking if it's possible to create a bridge while allowing each bridged network to exist in it's own subnet.
Network 1 - Say, I have a physical ethernet based network eth01 - with subnet 192....
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1
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2k
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How to connect 2 Virtual Network with on-premises without another VPN?
I'm totally new to Azure (and new to any public cloud, never did anything there).
There is one productive virtual network with VPN connection to on-premises resources.
Goal is to create new resource ...
- 28
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1
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260
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Ubuntu Server - "Virtual" Network Interface with Internet Access
I have an Ubuntu 18.04 server with one public network interface (eth0). I'm trying to create additional "virtual" network interfaces that will also be able to access the internet with NAT rules set up....
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1
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2k
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How to route all VM traffic through specific physical interface over a Linux bridge?
My objective is to have all KVM guest VMs send and receive traffic on em2 with addresses on the 192.168.2.0/24 subnet.
I have a host Linux machine (CentOS 7) with several NICs, 2 of which are in use ...
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Virtual network between Hyper-V host and guest VM is blocked by firewall because marked as unidentified
I have the following setup:
Windows machine with Hyper-V activated
Hyper-V VM under CentOS 7 using the default virtual switch as an interface between host and guest
The virtual switch has 172.24.255....
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Unable to access SQL Server on the Host Machine from SQL Server Management Studio in the Guest VM
Using VMware Workstation 15, should I be using host-only for my scenario below?
I need to access SQL Server, hosted on a Windows 10 host, from a Windows 10 Guest VM,
without giving the Guest VM ...
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1
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282
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Creating RabbitMQ cluster (by Bitnami) and Kafka cluster (by Bitnami) in Azure and connecting to them from Kubernetes in another v-net
I'm trying to create an architecture with:
1. Kafka cluster (by Bitnami)
2. Rabbitmq cluster (by Bitnami)
3. Kubernetes cluster (AKS) that can use both Kafka and RMQ
When I created both clusters (...
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2
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Virtual Networking in KVM breaking internet access
I have set up a virtual networking on my CentOS 7 Workstation and the primary physical network interface is bridged as per this RHEL article.
libvirtd is running successfully, however after reboot ...
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1
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139
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How to reliably keep a list of servers in a company network
We want to set up a connection to several servers at a customer site and are requested to deal with potentially changing IP addresses as they don't want to keep track of the MAC addresses used, with ...
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31
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Azure Virtual Network Slow downloads from google servers
Whenever i download an image from a google server it is way slower than other images (can take up to 4 seconds)
time curl -s https://pay.google.com/about/static/images/social/og_image.jpg -o image....
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606
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Unable to resolve DNS over site-2-site VPN between Azure and on-prem
I am running into some issues with setting up a test lab environment between on-prem and Azure. I have got as far as being able to get the site-2-site VPN up and connected and passing traffic (...
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1
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514
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Implementing Segment Routing Traffic Engineering (SR-TE) in IOS XR 6.3.1
I'm trying to deploy SR-TE on XRv9000 routers IOS XR 6.3.1 version which are deployed in AWS according to the topology below.
I have accomplished the configuration of SR on all routers which is ...
- 129
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1
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50
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Should a private virtual LAN be filtered
I'm a dev trying to learn others things and my current objective is to create a "virtual" lan on an ESXi host.
I've created a VM which work as the LAN gateway to the WAN and some VM that are ...
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1
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2k
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Restrict traffic between peered VNETs in Azure
I'm working with Azure, and I have 2 VNETs, each in its own resource group
Peering
+
|
...
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165
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What factor impact network speed between VM significantly?
There is question about network between different server,but i got a different situation.
I have two VM in a server,and I tried to test maximum network speed between two VM.
OS : CentOS
VSwitch ...
- 163
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156
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Solaris 10 LDOM Network Change
I have inherited a Solaris 10 host. At one time, it had 18 guests/LDOMs, but we're now down to 1, which is still business-critical. The host server has changed data centers and come up with a new IP ...
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GCP: No Network Access on additional virtual network interfaces
I have a Windows Server 2016 instance running on Google Cloud Console. I added a few extra virtual NICs to try to improve my network speed. Particularly hoping to use overseas endpoints to wormhole ...
google-cloud-platform
4
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2
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2k
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VNET peering with on-premise gateway transit not working properly
We have a VNET (let's call it VN_MAIN) that is configured to have a S2S VPN connection to our on-premise network. The VMs deployed within subnets of VN_MAIN are reachable from on-premise.
What I'm ...
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3k
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NIC teaming on hyper-v host or within each VM?
I installed Windows Server 2016 Datacenter on a Dell T620, and then I installed the Hyper-V Role. Next, I created a NIC Team comprised of 2 physical 1Gbps network adapters. Team is called LANTeam. ...
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1k
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Firewalld virtual bridge outgoing traffic to vpn tunnel
I finally decided to sit down and do something that has long been on my todo list: to get my virtual networking actually to work.
Simply put: I have a pure virtual bridge device (created by ifcfg-...
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891
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How to access services running in KVM-guest (virtual network) from remote
Background:
I am running an Openshift installation inside a KVM-VM and I can access the VM from the KVM-Host. I need to access Openshift from another machine. KVM is setup via virtual network using ...
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2
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4k
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How to enable reverse DNS for private ips inside an Azure (ARM) virtual network
Let's take a pretty straighforward setup, all in a dedicated resource group:
1 vnet (say 10.0.0.0/16)
1 subnet (say 10.0.0.0/24)
2 Linux virtual machines, machine1 and machine2 (with a public ip)
...
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1
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1k
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Docker: Virtual machine as worker with its host as manager in swarm
I'm having troubles to find which advertise address the manager should use to work with the following setup:
The problem is that if I use the default options of docker swarm init on the host, I can't ...
1
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1
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2k
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How to forward ports for azure virtual network gateway?
I have created Point to site vpn using azure virtual network. Right now I have
2 vms in vnet (with subnet ip's 10.x.x.x)
1 local machine connected to vnet with point to site vpn (ip 172.x.x.x)
I can ...
- 113
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Detect if a network card is a virtual network card (docker/veth/etc) in Linux / bsd
I see some good explanation for fetching information about network cards and their statistics in ubuntu on this page. This gave a nice output as mentioned on the page. I tried reading other ...
- 153
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601
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When multiple VMs share a storage device on the same host, where does the data actually travel?
I am trying to figure out the optimal way to share storage with multiple VMs on the same box. I am aware of a range of options: NFS, iSCSI, fibrechannel, bridged, etc, but I am unclear how they fit ...
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