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# Appendix I: Multiple Server Network Interfaces

This article outlines alternate steps for configuring the network if your server has multiple Network Interface Cards (NICs) installed.

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## ⚙️ Configure the Network

1. On the **"Configure the network"** screen, select one of the listed network interfaces and click **Continue**.

![](https://ggcircuit.atlassian.net/wiki/download/attachments/15861989/image-20250405-221710.png?version=1&modificationDate=1743891433998&cacheVersion=1&api=v2)

2. You should see a **"Configuring the network with DHCP"** progress message, followed by **"Network autoconfiguration has succeeded."**

![](https://ggcircuit.atlassian.net/wiki/download/attachments/15861989/image-20250405-221939.png?version=1&modificationDate=1743891583961&cacheVersion=1&api=v2)

3. ✅ If successful, proceed to **Step 5** of the III. - 🐧 Install Debian Linux guide.

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|| If autoconfiguration fails , continue with the steps below:

3. Click **Continue** to return to the network interface selection screen.
4. Choose a different network interface from the **"Primary network interface"** list and repeat the process.

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### ℹ️ Additional Information
|| Autoconfiguration may fail if you select an interface with no physical connection.

### 🔌 If all interfaces fail:

* Double-check the physical connections:

* Is the NIC port connected?
* Are there link lights on both the NIC and the switch?
* Is the Ethernet cable securely connected and undamaged?
* Is the network drop connected to your telecommunications room?
* Is a patch cable properly connected between your patch panel and switch?
* Inspect your switch:

* Is **DHCP enabled** on the port?
* Are any **port security policies** preventing the server from connecting?

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### 🧑‍💻 Advanced: Verify Network Interface Configurations

If your `/etc/network/interfaces` file has been manually edited, the `ggrock-linux-configurator` may fail during installation.

To verify and correct this:

1. Run `ip a` in the terminal and note each interface name.
2. Run `cat /etc/network/interfaces` and ensure each active NIC has a corresponding entry.
3. For each NIC not in the **DOWN** state, add an entry like:

```
   iface eno3 inet dhcp
```
4. After updating the file, re-run the ggRock installation.

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### 🛠️ Temporary Workaround

To bypass the issue and continue with the installation:

* Choose **"No"** when prompted to enable the VM bridge.
* Contact ggCircuit Support via the **purple chat bubble** in the bottom-right corner of your screen for assistance. 

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