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🌐 Virtual Routers

📘 Introduction​

Virtual Routers allow you to connect private networks to the internet and enable communication between subnets within your cloud infrastructure.

They are essential for:

✅ External access to VMs
✅ Network communication
✅ NAT and SNAT
✅ Multi-tier architectures
✅ Secure and scalable environments

🚀 When to use a virtual router?​

Use routers to:

  • 🌍 Publish applications on the internet
  • 🔐 Create network isolation
  • ⚙️ Architectures with Load Balancer
  • ☁️ High availability infrastructures
  • 🔄 Communication between private subnets

🧭 Step 1 -- Accessing the routers area​

  1. In the platform panel:
Infrastructure → Networks → Routers

Click on:

👉 Create Router

imagem

🏷️ Step 2 -- Router name​

Choose a descriptive name, for example:

  • router-prod
  • router-dev
  • gateway-main

Nome

🌍 Step 3 -- External network​

Select the public network that will provide internet access.

Internet

🔁 Step 4 -- SNAT​

Enable:

✅ SNAT

SNAT

💡 Why enable SNAT?

SNAT (Source Network Address Translation) allows virtual machines in the private network to access the internet even without a public IP.
When enabled on the router, outgoing traffic from the VMs is translated to the public IP of the external network, enabling:

  • System updates (apt, yum, etc.)
  • Access to external APIs and services
  • Downloading packages and dependencies
warning

SNAT only allows outgoing connections, keeping instances protected from direct internet access. For external access, Floating IPs or Load Balancers are still required.

🔗 Step 5 -- Internal interfaces​

Click on:

👉 Add

Select the subnet.

Example:

192.168.0.0/24

Interface

warning

The interface was previously created in Network

✅ Step 6 -- Creating​

Click Create.

Create

🎉 Router created!​

Overview

🚨 Troubleshooting​

VM without internet​

  • SNAT enabled?
  • Subnet connected?

🆘 Support​

If you have questions or need help, contact SaveInCloud technical support through the available channels.