docker network create

docker network create docs

docker network create --driver bridge your_net

docker network create -d=bridge --subnet=172.19.0.0/24 kind

Official example

docker network create \
  --driver=bridge \
  --subnet=172.28.0.0/16 \
  --ip-range=172.28.5.0/24 \
  --gateway=172.28.5.254 \
  br0