Error saying incorrect network interaface when trying to create network interface for docker

Question

How do I create network interface for my docker with my sebnet 192.168.0.0/24?

When I tried to create it, my entire network is going down or I’m getting an error saying “incorrect network interaface” after docker’s restart.

I need some containers on host server on which I can install something for local usage.

Answer 1

Try this

Step 1- remove the IP address from your host network interface

                $ sudo ip addr del <IP>/24 dev <interface_name>

Step 2- Create a docker network using a bridge to your host interface

$ sudo docker network create --driver bridge --subnet=<your_subnet>/24 --gateway=<here_the_ip_you_deleted_before> --opt "com.docker.network.bridge.name"="docker1" net_name

Step 3- Add the interface to the just created bridge

$ sudo brctl addif docker1 <interface_name>

Now you can create a container, attach it to the created network and assign an IP from your subnet to it.

$ docker run --net net_name --ip <ip_you_want> -ti ubuntu:16.04