diff --git a/hbc b/hbc
index e3c0510..5d93134 100755
--- a/hbc
+++ b/hbc
@@ -33,9 +33,9 @@ import syslog
 PORT = 50003
 INTERVAL = 10
 PIDFILE = '/tmp/hbc.pid'
-DBG = False
+DBG = True
 
-sock = None
+socks = None
 up = True
 ackcount = 0
 
@@ -52,68 +52,81 @@ def syslogtrace(note):
 
 def getsock(host):
 	try:
-		r=socket.getaddrinfo(host,  50001, 0, 0, socket.SOL_UDP)
+		rs=socket.getaddrinfo(host,  50001, 0, 0, socket.SOL_UDP)
 	except socket.gaierror:
 		logm = '%s hbc died: \n%s' % ('getsock', traceback.format_exc())
 		if DBG: print logm
 		return None
-	if r[0][0] in [10, 28, 30]:
-		af_type=socket.AF_INET6
-	elif r[0][0] == 2:
-		af_type=socket.AF_INET
-	else:
-		print "dont know this net type:  %s" %  r[0][0]
-		sys.exit(1)
-	if verbose:
-		syslog.syslog("socktype: %s" % af_type)
-	sock=socket.socket(af_type, socket.SOCK_DGRAM)
-	sock.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR, \
-            sock.getsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR) | 1)
-	if verbose: syslog.syslog("get socket %s" % sock)
+	socks = []
+	for r in rs:
+		if DBG: print "address %s" % str(r)
+		if r[0] in [10, 28, 30]:
+			af_type=socket.AF_INET6
+		elif r[0] == 2:
+			af_type=socket.AF_INET
+		else:
+			print "dont know this net type:  %s" %  r[0][0]
+			sys.exit(1)
+		if verbose:
+			syslog.syslog("socktype: %s" % af_type)
+		sock=socket.socket(af_type, socket.SOCK_DGRAM)
+		sock.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR, \
+   	         sock.getsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR) | 1)
+		if verbose: syslog.syslog("get socket %s" % sock)
+		socks.append(sock)
 	
-	return sock
+	return socks
 
 
 def socksend(msg, tohost):
-	global sock
+	global socks
 
-	if sock == None:
-		sock=getsock(tohost[0])
-	if DBG: print "socksend: sending msg=%s on socket=%s" % (msg, sock)
-	sock.sendto(msg, tohost)
+	if socks == None:
+		socks = getsock(tohost[0])
+	for sock in socks:
+		if DBG: print "socksend: sending msg=%s on socket=%s" % (msg, sock)
+		sock.sendto(msg, tohost)
 	if verbose: syslog.syslog("msg %s sent" % msg)
 
 
 def process():
-	global up, sock, ackcount
+	global up, socks, ackcount
 
-	if sock == None:
-		sock=getsock(tohost[0])
+	if socks == None:
+		socks=getsock(tohost[0])
 
 	ackcount=0
 	lastT=time.time()
+	ifiles = []
+	for sock in socks:
+		ifles.append(sock.fileno())
 	while up:
 		sleep=(lastT+interval) - time.time() 
 		if verbose: syslog.syslog("sleep %s" % sleep)
 		if sleep > 0:
 			try:
-				r=select.select([sock.fileno()],[],[],sleep)
+				r=select.select(ifiles,[],[],sleep)
 			except:
 				if up:
 					syslogtrace('select')
 				break
 			if verbose: syslog.syslog("r is %s" % str(r))
-			if sock.fileno() in r[0]:
-				data, addr = sock.recvfrom(1024)
-				if  data == "ACK":
-					ackcount+=1
-				else:
-					try:
-						os.system(data)
-					except:
-						syslogtrace('System')
-						pass
-				continue	
+			cont = False
+			for sock in socks:
+				if sock.fileno() in r[0]:
+					data, addr = sock.recvfrom(1024)
+					if  data == "ACK":
+						ackcount+=1
+					else:
+						try:
+							os.system(data)
+						except:
+							syslogtrace('System')
+							pass
+					cont = True
+					continue	
+			if cont:
+				continue
 		lastT=time.time()
 		for hb_host in hb_hosts:
 			try:
@@ -127,7 +140,7 @@ def process():
 	
 
 def cleanup(a, b):
-	global up, sock, ackcount
+	global up, socks, ackcount
 	up = False
 	syslog.syslog('exit a=%s b=%s' % (str(a), str(b)))
 	msg="shutdown=1;name=%s;acks=%s" % (iam, ackcount)
@@ -135,7 +148,8 @@ def cleanup(a, b):
 		if verbose: syslog.syslog("hbc: sock.send('%s', (%s, %s))" % (msg, hb_host, hb_port))
 		socksend(msg, (hb_host, hb_port))
 	time.sleep(1)
-	sock.close()
+	for sock in socks:
+		sock.close()
 
 
 msgonly=False
@@ -311,7 +325,9 @@ if fdaemon:
 #		signal.SIGUSR1: reload_program_config,
 		}
 
-	context.files_preserve = [sock, sock.fileno()]
+	context.files_preseve = []
+	for sock in socks:
+		context.files_preserve += [sock, sock.fileno()]
 	with context:
 		syslog.syslog('starting heartbeat to %s' %  ','.join(hb_hosts))
 		up = True