Now, You can use these handy and functional terminal command lines to set the ethernet connection turn on, turn down, and to delete the bridge connection. If everything went fine, you will find the name of the bridge connection, bridge connection ID, and the Spanning Tree Protocol (STP) status in the output. We will be using the Bridge Control ( brctl) terminal command on Ubuntu. Now we can check the bridge network connections that we have just made on our Ubuntu system. $ sudo nmcli conn add type ethernet slave-type bridge con-name bridge-br0 ifname enp8s0 master br0 ![]() We will use the sudo commands in the terminal. Very first we will add the connection type and save the bridge network connection to the network manager through the nmcli command on Ubuntu. The Network Manager Command-Line, or in short the nmcli is the command-line based interface to setup and configure the network settings on the Ubuntu Linux. enp8s0 Step 3: Configure Network Bridge Using the nmcli Command # Let NetworkManager manage all devices on this system The Dynamic Host Configuration Protocol (DHCP) settings will help you if you’re trying to configure a wireless bridge connection on your Ubuntu Linux. You can directly copy the configuration settings that I’ve used. Here, I am using my ethernet address, be mindful to replace it with your ethernet ID. We will get the ethernet ID from the ifconfig command. Now, we have to add the basic bridge connection setting and configuration inside the script file. $ sudo nano /etc/netplan/01-network-manager-all.yaml We will open the YAML file on the Ubuntu terminal using the nano script editor tool. We can open and edit the netplan configuration file through the Nano script editor. The configuration file will be found under the root/etc/netplan directory on Ubuntu. ![]() Netplan is the very primary configuration files that are stored inside the root of the Ubuntu Linux filesystem. $ ip add Step 2: Configure Bridge Connection From the NetPlan Then, we will check the internet protocol ( IP address) and the ethernet connection port settings or configurations of our system by using the basic net-tool commands of Ubuntu. As here, we are dealing with Ubuntu so we will be using the apt-get command to install the network bridge inside the machine. To get the network bridge installed and activated on your Ubuntu Linux, very first, you need to install the bridge utility software inside your Linux machine. Step 1: Installing Bridge Utilities on Ubuntu Linux Each segment cross-checks the segment, the MAC address, and, the data link layer then it delivers the data packet to the specific network device. The network bridge uses the DDL2 ( data link layer) to function where the bridges are used as the junction of the MAC address. ![]() Network bridges are mostly used in Linux Containers, Kernel-based Virtual Machines, Xen Cloud Computing, and in Docker or Virtual Machines. The network bridge works with the segment method where devices are divided into a couple of segments with ports and unique MAC addresses. It works with the MAC ( media access control) address and the data link layer recognition method.Įvery device has it’s own unique MAC address that is used to choose which data packet is to be delivered from which device to which device. The functioning method of the network bridge is clear to understand. When multiple network devices are connected through network topology, it is important to make the connections secure, fast, and private. For networking on Ubuntu Linux, the dynamic type of network bridge connections are most popular and the notion is very simple to install. A network bridge works with a combination of the physical address layer (MAC address) and the data link layer. A network bridge is a method of connecting computer and network devices to transmit data packets through the network topology that can reduce the network traffic between the source and the destination address.
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