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Software Secure Firewall Threat Defense
Platform Secure Firewall Threat Defense Virtual
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Configuring FDM-Managed Devices Interfaces Configuring Firepower Interfaces Configure a Bridge Group Configure the IPv4 Address for the BVI

Last updated: Jun 09, 2025

Configure the IPv4 Address for the BVI

Procedure

1

Select the device for which you want to create a bridge group.

2

Select the BVI in the list of interfaces and click Edit in the Actions pane.

3

Click the IPv4 Address tab to configure the IPv4 address.
4

Select one of the following options from the Type field:

  • Static-Choose this option if you want to assign an address that should not change. Type in the bridge group's IP address and the subnet mask. All attached endpoints will be on this network. For models with a pre-configured bridge group, the default for the BVI "inside" network is 192.168.1.1/24 (i.e. 255.255.255.0). Ensure that the address is not already used on the network.

    If you configured high availability, and you are monitoring this interface for HA, also configure a standby IP address on the same subnet. The standby address is used by this interface on the standby device. If you do not set the standby IP address, the active unit cannot monitor the standby interface using network tests; it can only track the link state.


     

    If there is a DHCP server configured for the interface, you are shown the configuration. You can edit or delete the DHCP address pool. If you change the interface IP address to a different subnet, you must either delete the DHCP server, or configure an address pool on the new subnet, before you can save the interface changes. See Configuring DHCP Server.

  • Dynamic (DHCP)-Choose this option if the address should be obtained from the DHCP server on the network. This is not the typical option for bridge groups, but you can configure it if needed. You cannot use this option if you configure high availability. Change the following options if necessary:

    • Route Metric—If you obtain the default route from the DHCP server, the administrative distance to the learned route, between 1 and 255. The default is 1.

    • Obtain Default Route—Check this option to get the default route from the DHCP server. You would normally select this option, which is the default.
5

Continue with one of the following procedures:
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