# Add an `Interface` described by `text` formatted as `interface.name.com:port`
	fun add_from_string(text: String)
	do
		assert text.chars.count(':') <= 1

		var words = text.split(':')
		var name = words[0]
		var port
		if words.length > 1 then
			port = words[1].to_i
		else port = 80

		add new Interface(name, port)
	end