Routing between networks in the same environment

By default, multiple networks within an environment are isolated from each other.

In some cases, you may need traffic to flow between the networks in an environment. For example, if you’re testing a multi-tier application with tiers distributed across multiple subnets, you’ll want to test that proper routing occurs between the subnets.

To enable routing between networks in the same environment

Suspend or shut down the VMs in the environment.
Navigate to the environment Network Settings page.

Show me how
1. Click Environments > Environments to display a list of environments you own or that have been shared with you.
2. Click the name of an environment to open the Environment Details page view.
3. Click the Networking: Settings link in the environment overview.
  
  The Network Settings page displays.
Click the checkbox next to Allow all traffic between networks in this environment. After this is checked, VMs within the environment can communicate with one another via their IP addresses.

VMs can’t resolve hostnames across automatic networks in the same environment (for example, if Network 1 and Network 2 are both automatic networks, a VM on Network 1 won’t be able to resolve the hostname of a VM on Network 2).

Troubleshooting

If the VMs can’t communicate with one another, check the guest OS firewall settings to make sure access isn’t blocked.