proc ::nano::network::_localIP {version} {
	set now [clock seconds]

	if {[info exists ::nano::network::_localIP($version)]} {
		set cached $::nano::network::_localIP($version)
		set lastCheckTime [dict get $cached lastCheckTime]
		if {[clock add $lastCheckTime 1 day] >= $now} {
			if {[dict exists $cached value]} {
				return [dict get $cached value]
			} else {
				return -code error "Unable to resolve address for IP $version (cached)"
			}
		}
	}