Can't create an image

Hello there!

I’m running Arch with a custom kernel. I was able to start Docker without any error nor warning
when I try to create my first image by doing this:
docker run -t --rm=true -v ${WORKSPACE}:/opt/webui ${DOCKER_IMAGE}

after going through the second step I get this error
failed to create endpoint modest_minsky on network bridge: failed to add the host (veth07ccd80) <=> sandbox (veth59e1097) pair interfaces: operation not supported

what I would like to know what is the option that I need to enable (or configure) in my custom kernel???

thanks in advance for any help