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vagrant
Luis Usquiano
Luis Usquiano

Reputation: 43

How do I create a isolated network on Vagrant?

I have started learning Vagrant. What I want to do is create a private network with 2 guests : ip private network: 192.168.3.0 ip guest #1 (centos8): 192.168.3.1 ip guest #2 (ubuntu20.o4): 192.168.3.2

So: Vagrant.configure("2") do |config| config.vm.network "private_network", ip: "192.168.3.1" end Vagrant.configure("2") do |config| config.vm.network "private_network", ip: "192.168.3.2" end

I thought that setting a network as "Private" no other guests on Vagrant were able to do ping to them or do ssh... Because I can do it. What Must I do? to isolate that network from others guests.

Upvotes: 0

Views: 1531

Answers (1)

Diego Veralli
Diego Veralli

Reputation: 1052

The only solution I know is specific to the VirtualBox provider, using VirtualBox's internal network feature:

Internal Networking is similar to bridged networking in that the VM can directly communicate with the outside world. However, the outside world is limited to other VMs on the same host which connect to the same internal network.

https://www.virtualbox.org/manual/ch06.html#network_internal

In vagrant you would specify the internal network like this:

config.vm.network "private_network", ip: "192.168.100.4", 
                  virtualbox__intnet: "isolatednet1"

Where isolatednet1 can be any name you want for the internal network. All VirtualBox VMs using the isolatednet1 network will be able to communicate with each other, but they won't be able to communicate with VMs outside the internal network.

Note that instead of a network name you can use a boolean value of true for virtualbox__intnet but in that case Vagrant will assign all VMs to the network "intnet". So if you want to achieve isolation you need to assign a unique internal network name for each group of VMs you want to isolate.

Upvotes: 1

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