From: Chris Schlaeger <cschlaeger@...>
Date: 2010-04-23T02:32:55+09:00
Subject: [ruby-core:29733] Re: [Bug #3052] DRb::start_service fails to 	detect used port

On Thu, Apr 22, 2010 at 6:58 PM, Yusuke ENDOH <mame@tsg.ne.jp> wrote:
> This may be side effect of ipv6 support of ext/socket.
> What's printed by:
>
> �require "socket"
> �p TCPServer.new("localhost", 1234).addr
> �p TCPServer.new("localhost", 1234).addr
>
> ?
>
> If the result is, for example:
>
> �["AF_INET6", 1234, "::1", "::1"]
> �["AF_INET", 1234, "127.0.0.1", "127.0.0.1"]

# ruby19 socket-ipv6.rb
["AF_INET6", 1234, "localhost", "::1"]
["AF_INET", 1234, "localhost", "127.0.0.1"]
# host localhost
localhost has address 127.0.0.1

Hope that helps. I can run more tests if needed.
Chris