Routers in xneelo Cloud

A router is a virtual device that directs traffic between networks in your cloud project.

• Router interface: A connection between a router and a subnet in a private network.
• Router gateway: The router’s connection to the public (external) network.
• NAT (Network Address Translation): Enables instances with private IPs to reach the internet via the router’s public gateway.

Routers are useful when you need to:

• Give private instances outbound internet access (for OS updates or API calls).
• Separate public-facing and private-only services into different networks.
• Connect multiple private networks for internal traffic flow.
• Reduce floating IP usage by sharing one public gateway across many instances.

STEPS

1. 1
   In the Cloud dashboard, go to Network > Routers.
2. 2
   Click Create Router.
3. 3
   Add a name to identify the router.
4. 4
   Optional: Set an external gateway to connect to the public network.
5. 5
   Select Create Router.

The new router will appear in your list, ready to connect to a private subnet.

To enable routing, add interfaces between the router and your private networks. Each additional subnet requires a separate interface.

STEPS

1. 1
   In the Cloud dashboard, go to Network > Routers.
2. 2
   Select the Router Name (blue hyperlink).
3. 3
   Go to the Interfaces tab.
4. 4
   Click Add Interface.
5. 5
   Select the subnet you want to connect.
6. 6
   Select Confirm.

Once the interface is created, you can control traffic flow by assigning security groups on the interface port.

You can add or remove security groups to control which network traffic can flow to and from this port.

STEPS

1. 1
   On the Interfaces tab, find the interface.
2. 2
   In the Actions column, select Edit Port.
3. 3
   Go to the Security Groups tab.
4. 4
   Add or remove security groups as needed.
5. 5
   Select Update to confirm.

To give private instances internet access, you need to set the router’s external gateway.

STEPS

1. 1
   In the Cloud dashboard, go to Network > Routers.
2. 2
   Find the router and select Set Gateway.
3. 3
   Choose the Public network.
4. 4
   Select Submit to confirm.

To remove internet access, select Clear Gateway.

Static routes let you manually define where traffic for a specific destination network should be sent.

You may need a static route when traffic must follow a route that your router would not otherwise know about. They are generally not required for a standard private-network setup using a router gateway to reach the public network.

Static route configuration:

• Destination CIDR – The network or IP range the traffic needs to reach, for example 10.20.0.0/24.
• Next hop – The IP address of the device or router that should receive traffic for that destination. For example, 10.0.0.10

This tells the router to send traffic destined for 10.20.0.0/24 to 10.0.0.10.

Before adding a static route:

• Make sure the next-hop IP is reachable from a subnet connected to the router.
• Avoid adding a route that conflicts with or overlaps an existing network route.
• Only add a static route when your network design requires one; incorrect routes can prevent traffic from reaching its intended destination.

STEPS

To configure a static route:

1. 1
   Go to Network > Routers.
2. 2
   Select the router.
3. 3
   Open the Static Routes tab.
4. 4
   Add the Destination CIDR and Next hop.
5. 5
   Save the route.

If you no longer need a router, you can delete it.

STEPS

1. 1
   In the Cloud dashboard, go to Network > Routers.
2. 2
   Find the router you want to access.
3. 3
   In the Actions column, select the down ▼ button and Delete Router.
4. 4
   Select Delete Router to confirm.

If instances cannot reach the internet:

• Check that the router has an external gateway set.
• Ensure the private subnet is connected to the router with an interface.
• Confirm security group rules allow outbound traffic.
• Verify the instance operating system is configured with the correct IP and gateway.
• Verify that NAT is working by testing outbound connectivity (ping or curl).