def _do_arping_detect(pos):
	clist = []
	addrs = xt_func.get_netpos_addresses(pos)
	proxys = xt_func.get_netpos_proxyarp(pos)
	
	for ip in proxys:
		addrs.append(ip)
	
	for ip in addrs:
		e = xt_func.sudo(["arping -D -w 1 -I", pos, ip, "| grep Unicast"])
		if e[0]:
			tok = e[1].split()
			mac = tok[4][1:-2].split(":")
			mac_s = []
			for i in mac:
				if len(i) == 1:
					mac_s.append("0" + i)
				else:
					mac_s.append(i)
			mac = ":".join(mac_s)
			clist.append((ip, pos, mac))
	return clist	
def _get_wan_address(pos):
	addrs = xt_func.get_netpos_addresses(pos)
	if len(addrs) == 0 : return "N/A"	
	return addrs[0]