Enabling Internet Access on an OpenWrt Hyper-V Virtual Machine
In this article, we will discuss the steps required to enable Internet access on an OpenWrt virtual machine running on Hyper-V. We will cover key concepts such as network configuration and firewall settings. The article will be divided into several subtopics for easy navigation.
Prerequisites
Before we begin, make sure you have the following:
- A host machine running Hyper-V
- An OpenWrt virtual machine created in Hyper-V
- Internet access on the host machine
Network Configuration
The first step in enabling Internet access on the OpenWrt virtual machine is to configure the network. By default, Hyper-V creates a virtual switch that allows the virtual machine to communicate with the host machine, but not with the Internet.
To configure the network, follow these steps:
- Open the Hyper-V Manager.
- Select the OpenWrt virtual machine and click on Settings.
- In the left-hand menu, click on Network Adapter.
- In the Virtual Switch dropdown, select External.
- Check the box that says "Allow management operating system to share this network adapter".
- Click OK to save the changes.
Once the network is configured, the OpenWrt virtual machine should be able to communicate with the Internet.
Firewall Settings
By default, OpenWrt has a firewall enabled that blocks all incoming and outgoing traffic. To allow Internet access, we need to configure the firewall to allow traffic through the WAN interface.
To configure the firewall, follow these steps:
- Connect to the OpenWrt virtual machine using SSH or a serial console.
- Enter the following command to open the firewall configuration:
uci show firewallThis will display the current firewall configuration. By default, the WAN interface is blocked.
- To allow traffic through the WAN interface, enter the following command:
uci add firewall ruleThis will add a new firewall rule.
- Enter the following commands to configure the new firewall rule:
uci set firewall.@rule[-1].name='WAN\_Allow\_All'
uci set firewall.@rule[-1].src='wan'
uci set firewall.@rule[-1].dest='*'
uci set firewall.@rule[-1].proto='*'
uci set firewall.@rule[-1].action='accept'This will allow all incoming and outgoing traffic through the WAN interface.
- Save the firewall configuration by entering the following command:
uci commit firewallOnce the firewall is configured, the OpenWrt virtual machine should be able to access the Internet.
In this article, we discussed the steps required to enable Internet access on an OpenWrt virtual machine running on Hyper-V. We covered key concepts such as network configuration and firewall settings. By following the steps outlined in this article, you should be able to enable Internet access on your OpenWrt virtual machine.