From: Andrew Parlane <ajp97@...>
Date: 2008-08-29T18:26:18+09:00
Subject: Re: specifying a network interface, with a http get request

Hey John,

Thanks for your response, however I think you misunderstood my post. I'm 
looking for a way to bind to a specific IP for outgoing requests. That 
is on the server i want to use something like the following sudo code:

def getPage(whichIP)
  ip = '';
  case (whichIP)
    when 0:  ip = '123.456.789.001';
    when 1:  ip = '123.456.789.002';
    when 2:  ip = '123.456.789.003';
    default: ip = '123.456.789.004';
  end

  soc = bind(ip,80); #bind to specific ip and port 80

  soc.open(myUrl) do |sh|
    return sh.read();
  end
end


now if the url was for a page that had no content, except for the IP 
address of the requester then the following code:

puts getPage(0);
puts getPage(1);
puts getPage(2);
puts getPage(3);

would output:
123.456.789.001
123.456.789.002
123.456.789.003
123.456.789.004

Hope that makes it clearer

Andy
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