I have two virtual networks (classic) in Azure, and I need to be able to ssh between vms on these networks. I have followed the instructions here (https://azure.microsoft.com/en-us/blog/vnet-to-vnet-connecting-virtual-networks-in-azure-across-different-regions/), and successfully connected the networks. However, when I try and ping vm1 on vnet1 and vm2 on vnet2 the request times out, so it looks like vm1 cannot see vm2. Are there any further steps I need to take to allow communication? Shouldn't they be able to see each other's private IP addresses?
That's a pretty loaded question, but I think there is a better walk through for you to have a look at:
Configure a VNet-to-VNet connection in the Azure Classic Portal
or
Configure a VNet-to-VNet connection for virtual networks in the same subscription by using Azure Resource Manager and PowerShell
Pick your poison... I've verified both of these work as intended if you follow the steps carefully.
Related
We have managed AKS Cluster and it has a few applications PODS. In the same subscription, we have a few servers in the different Resource Group and different VNET. We have a requirement to happen a communication between these two VNET's. I have configured vnet peering between two VNET's but we can see that the communication is not happening.
When I add a rule like "Allow port 443 from all networks" on to the NSG of Virtual machines then everything works fine.
Troubleshooting steps are done.
VNET Peering
Got an API Server IP Address from the "kubeconfig" file and added in the NSG of VM's in a diff RG.
But did not resolve an issue. Could you please help me to fix the issue.
AKS Resources are behind the Internal Load Balancer, so peering did not help. I had to use the Public IP Address provisioned during the AKS Creation process in the NSG. After adding PIP(Available in MC_rg-*** resource group) everything started working.
I would suggest to try connecting the VNET's through VPN gateways .
From an Azure virtual network, connecting to another virtual network is essentially the same as connecting to an on premises network via site-to-site (S2S) VPN.
You will need to go through the below listed steps :
Create VNetA and VNetB and the Corresponding Local Networks.
Create the Dynamic Routing VPN Gateways for each virtual network.
Connect the VPN Gateways.
Please find the referred document for implementing the same solution I have mentioned above .
For more information on difference of vnet peering and vnet gateway you can refer this document.
I created an application security group, assigned it to two VMs and there is a lot more in that resource group but my question is when I RDP into one of the VMs, I cannot ping the other VM and or reach a website hosted on the other VM. Plus because of an NSG, I am able to reach that website from my local machine.
I thought using ASGs mean, I don't have to do anything else for connected VMs to talk to each other? Also of note, if I open up the ASG to everything in the NSG, I am able to ping and reach the site from the other VM. What am I missing?
Both VMs are in the same vnet and subnet. Screenshot of NIC of one of the VMs below:
when I RDP into one of the VMs, I cannot ping the other VM and or
reach a website hosted on the other VM. Plus because of an NSG, I am
able to reach that website from my local machine.
You're able to connect to the other VM from the VM because VMs in the same virtual network can communicate with each other over any port, by default. This means you can access the other VM using its private IP address from one VM. Note, by default, Firewall inside the VM may disable the ICMP packages, you may use netsh advfirewall firewall add rule name="ICMP Allow incoming V4 echo request" protocol=icmpv4:8,any dir=in action=allow to enable the ICMP inbound traffic if you work on Windows Azure VM or temporarily turn windows firewall off to test this when you ping each other.
In this case, you may check the above first. If you still do not ping VMs or reach a website hosted on the other VM2 from the VM1 inside the private network. I may think that something is blocking on the NSG side. It is not a good way to use PING test the VMs connectivity. You could use telnet to verify if the specific port is blocking.
I thought using ASGs mean, I don't have to do anything else for
connected VMs to talk to each other?
Yes, you don't have to do anything else for connected VMs to talk to each other as they already in the same subnet where they can communicate with each other.
You may refer to more details about Application security groups.
Can someone please help me with this Azure solution.
Scenario:
I have VM1 in VNet in Azure (VNet1) and a VM2 in another VNET (VNet2).
I have created a VNet-2-VNet tunnel between these two and I verified
that it works properly. I have a website that is only reachable from
the VM2 in VNet2 via VPN S2S tunnel. If I try telnet from VM1 to VM2
it works. If I try to browse the HTTPS (443) site from the VM2 it
works.
What I need to do:
I need to be able to browse the website directly on VM1. My guess is
that I will have to set up some routing that traffic from VM1 will hop
to VM2 and from there send the request to the website, or something.
So far nothing I've tried works.
If you need any more information I will fill in the blanks.
Thanks in advance for your help
Do you mean you set vnet-to-vent between Vnet1 and Vnet2, then set site-to-site between vnet2 and web Vnet, and you want to community Vnet1 and Web Vnet?
If I understand it correctly, for now, Azure does not support this, because there is no derived transitive relationship.
As a workaround, we can configure VM2 to forward traffic to Web Vnet, make VM2 work as a router.
Update:
We can install RRAS on it, and configure NAT for it, work like this:
More information about it, please refer to this blog.
Update2:
The best way to achieve it, we should create a VPN between web net and VNet2.
I contacted Microsoft Azure support and the helpdesk person told me that the only way how I could achieve this would be to:
Have the VNET2VNET tunnel between my VNET1 and VNET2
Have the Site2Site VPN connection between my VNET2 and the on-premises Website
Create a UDR on my VNET1 to forward traffic from subnet in VNET1 to the destination over my Virtual Appliance (VM2 in VNET2)
Enable BGP on both of my VNETs, and also enable BGP on the on-premises network
This was unfortunately not possible for me, because I only manage the 2 VNETs for client and the on-premises network is managed solely by client and he didn't want to enable it. Luckily I have one other option how to acomplish the connection. I will need to move the VM that needs access from VNET1 to VNET2 and from there contact the on-premises site directly.
I am using AZURE and have created several webapps and one Virtual Machine. I need all of them to be part of a virtual network so that cookies/and other packets transferred between them work properly. I created the VM and the network at the same time. But when I try to add networking to the webapps it shows the network but says that it does not have a gateway.
I don't know how to add a gateway to that VPN or how to make it work. Can anyone please help me?
You have to configure point to site in your virtual network before you can connect a web application to your vnet. Basically, you need to create a gateway and then configure point to site.
Since you already have a virtual network, follow steps 4 and 5 only:
Create a VNet with a Site-to-Site VPN connection using the Azure Portal
Later, configure P2S:
Configure a Point-to-Site connection to a virtual network using PowerShell
If everything goes right, you will be able to select the VNET in your app settings instead of a greyed item.
I wrote about this process a while ago and you can find my notes here.
I am trying to connect my Windows Azure Virtual machines to my On Premise network. I have established a site to site VPN tunnel, and have created the appropriate subnets and placed a virtual machine in one of the subnets that isn't the gateway subnet.
My on premise test network is 192.168.9.x/24 my Azure Network is 10.4.x.x/16 with a subnet for DMZ - 10.4.2.x/24 and ServerNetwork at 10.4.3.x/24.
I have confirmed that the tunnel is up and running both on the Windows Azure side, as well as on my Cisco ASA 5505.
I want my servers to be able to communicate across the tunnel, however currently they cannot see each other. I am missing something, I tried static routes between the two servers, and have not had any success. Has anyone gotten this to work? If so what did you do on the networking side of the config to make it work?
Thanks,
Steve
Windows Azure Virtual Network enables you to create secure site-to-site connectivity, as well as protected private virtual networks in the cloud.
You can specify the address space that will be used for both your virtual network and the virtual network gateway.
Additionally, new name resolution features allow you to connect directly to role instances and virtual machines by hostname.
These features allow you to use Windows Azure as you would a branch office, or as a protected private virtual network in the cloud.
You can read more about it here:
http://msdn.microsoft.com/en-us/library/windowsazure/jj156007.aspx
Here is a lab exercise to walk you through the process:
http://www.windowsazure.com/en-us/manage/services/networking/create-a-virtual-network/