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Chapter 11. Configuring network bridges in the web console

Network bridges are used to connect multiple interfaces to the one subnet with the same range of IP addresses.

Prerequisites

11.1. Configuring a network bridge using the RHEL web console

This section explains how to configure a network bridge using the RHEL web console.

Prerequisites

Procedure

  1. Select the Networking tab in the navigation on the left side of the screen.
  2. Click Add bridge in the Interfaces section.
  3. Enter the name of the bridge device you want to create.
  4. Select the interfaces that should be ports of the bridge.
  5. Optional: Enable the Spanning tree protocol (STP) feature to avoid bridge loops and broadcast radiation.

    bridge settings
  6. Click Apply.
  7. By default, the bridge uses a dynamic IP address. If you want to set a static IP address:

    1. Click the name of the bridge in the Interfaces section.
    2. Click Edit next to the protocol you want to configure.
    3. Select Manual next to Addresses, and enter the IP address, prefix, and default gateway.
    4. In the DNS section, click the + button, and enter the IP address of the DNS server. Repeat this step to set multiple DNS servers.
    5. In the DNS search domains section, click the + button, and enter the search domain.
    6. If the interface requires static routes, configure them in the Routes section.

      bond team bridge vlan.ipv4
    7. Click Apply

Verification

  1. Select the Networking tab in the navigation on the left side of the screen, and check if there is incoming and outgoing traffic on the interface:

    bridge verify

11.2. Removing interfaces from the bridge using the web console

Network bridges can include multiple interfaces. You can remove them from the bridge. Each removed interface will be automatically changed to the standalone interface.

Learn how to remove a network interface from a software bridge created in the RHEL 8 system.

Prerequisites

  • Having a bridge with multiple interfaces in your system.

Procedure

  1. Log in to the RHEL web console. For details, see Logging in to the web console.
  2. Open Networking.
  3. Click the bridge you want to configure.
  4. In the bridge settings screen, scroll down to the table of ports (interfaces).
  5. Select an interface and click the - button.

Verification steps

  • Go to Networking to check that you can see the interface as a standalone interface in the Interface members table.

11.3. Deleting bridges in the web console

You can delete a software network bridge in the RHEL web console. All network interfaces included in the bridge will be changed automatically to standalone interfaces.

Prerequisites

  • Having a bridge in your system.

Procedure

  1. Log in to the RHEL web console.

    For details, see Logging in to the web console.

  2. Open the Networking section.
  3. Click the bridge you want to configure.
  4. Click Delete.

    cockpit bridge delete

Verification steps

  • Go back to Networking and verify that all the network interfaces are displayed in the Interface members table.

Some interfaces that were previously part of the bridge can become inactive. If necessary, activate them and set network parameters manually.