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network: com.docker.network.bridge.inhibit_ipv4 

Signed-off-by: David Karlsson <35727626+dvdksn@users.noreply.github.com>
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David Karlsson 2024-04-19 09:22:31 +02:00
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content/network/drivers/bridge.md
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@ -105,14 +105,15 @@ flag.
The following table describes the driver-specific options that you can pass to
`--option` when creating a custom network using the `bridge` driver.
| Option | Default | Description |
| ------------------------------------------------ | -------------- | ----------------------------------------------------------- |
| `com.docker.network.bridge.name` | | Interface name to use when creating the Linux bridge. |
| `com.docker.network.bridge.enable_ip_masquerade` | `true` | Enable IP masquerading. |
| `com.docker.network.bridge.enable_icc` | `true` | Enable or Disable inter-container connectivity. |
| `com.docker.network.bridge.host_binding_ipv4` | | Default IP when binding container ports. |
| `com.docker.network.driver.mtu` | `0` (no limit) | Set the containers network Maximum Transmission Unit (MTU). |
| `com.docker.network.container_iface_prefix` | `eth` | Set a custom prefix for container interfaces. |
| Option | Default | Description |
| ------------------------------------------------ | -------------- | --------------------------------------------------------------------------------------------- |
| `com.docker.network.bridge.name` | | Interface name to use when creating the Linux bridge. |
| `com.docker.network.bridge.enable_ip_masquerade` | `true` | Enable IP masquerading. |
| `com.docker.network.bridge.enable_icc` | `true` | Enable or Disable inter-container connectivity. |
| `com.docker.network.bridge.host_binding_ipv4` | | Default IP when binding container ports. |
| `com.docker.network.driver.mtu` | `0` (no limit) | Set the containers network Maximum Transmission Unit (MTU). |
| `com.docker.network.container_iface_prefix` | `eth` | Set a custom prefix for container interfaces. |
| `com.docker.network.bridge.inhibit_ipv4` | `false` | Prevent Docker from [assigning an IP address](#skip-ip-address-configuration) to the network. |
Some of these options are also available as flags to the `dockerd` CLI, and you
can use them to configure the default `docker0` bridge when starting the Docker
@ -257,9 +258,24 @@ to a single network.
For more information about this limitation, see
[moby/moby#44973](https://github.com/moby/moby/issues/44973#issuecomment-1543747718).
## Skip IP address configuration
The `com.docker.network.bridge.inhibit_ipv4` option lets you create a network
that uses an existing bridge and have Docker skip configuring the IPv4 address
on the bridge. This is useful if you want to configure the IP address for the
bridge manually. For instance if you add a physical interface to your bridge,
and need to move its IP address to the bridge interface.
To use this option, you should first configure the Docker daemon to use a
self-managed bridge, using the `bridge` option in the `daemon.json` or the
`dockerd --bridge` flag.
With this configuration, north-south traffic won't work unless you've manually
configured the IP address for the bridge.
## Next steps
- Go through the [standalone networking tutorial](../network-tutorial-standalone.md)
- Learn about [networking from the container's point of view](../index.md)
- Learn about [overlay networks](overlay.md)
- Learn about [Macvlan networks](macvlan.md)
- Learn about [Macvlan networks](macvlan.md)