Manage NAT for virtual datacenters

Manage NAT for virtual datacenter networks

When the Network Address Translation (NAT) integration is available in your environment, the NAT tab will display the NAT IPs and NAT rules for your virtual datacenter. 

NAT IPs can be associated with private IPs attached to VMs using NAT rules. They can also be used as a public IP address for load balancers, and the platform will automatically create a NAT rule to match the load balancer routing rule port mappings.

Obtain a NAT IP and configure SNAT for your VDC

When you obtain the first NAT IP, the platform will create a default SNAT rule for outgoing traffic from the virtual datacenter through this IP.

To obtain a NAT IP

1. Click the + Add button on the top right-hand side of the screen
2. Select the NAT network and click Accept

The platform will reserve an IP and allocate it to your virtual datacenter.

You can then use the NAT IP as the public IP address for a load balancer or to provide access to a private IP address.

Create NAT rules

After you obtain a NAT IP, you can create a NAT rule for a private IP address on a VM. 

To create a NAT rule:

1. Go to Virtual datacenters → Virtual appliances.
2. Edit your VM
3. If your VM does not yet have an IP, go to Network → NICs and add a private IP
4. Go to Network → NATs
5. Click the + button on the top right-hand side of the tab
6. Enter the details of the NAT rule, which by default will be a DNAT rule
   
   1. To create an additional SNAT rule for traffic from the private IP to the outside network through the NAT IP, select the SNAT checkbox
7. Click Add
8. Save the VM

Modify and delete NAT rules

From the NATs tab you can also select a NAT rule to edit or delete it.