Hi,

when running a DNS server in a container and exposing the port without specifying the IP to bind (-p 53:53/udp) the answers don't get translated. I don't have a easy way to reproduce right now, but it seems like this is a common and known problem:

• https://groups.google.com/forum/#!msg/docker-user/X0VRo77A3fk/2qp4vi8buX8J
• https://groups.google.com/forum/#!topic/docker-user/cvOO_v3nXXk
• https://www.google.com/search?q="reply+from+unexpected+source"+docker

Seems like the workaround is to provide a IP, I'll try this and also try to provide a simple way to reproduce it unless you're already aware of this.

This happened to me on docker 1.5.0