add more nat func

net/natt.go

@@ -52,8 +52,8 @@ func (n *NatThroughs) Parse(reqs []string) error {
 		var req = NatThrough{
 			Forward: netforward.NetForward{
 				LocalAddr:       "0.0.0.0",
-				DialTimeout:     3000,
+				DialTimeout:     time.Second * 5,
-				UDPTimeout:      20000,
+				UDPTimeout:      time.Second * 20,
 				KeepAlivePeriod: n.KeepAlivePeriod,
 				KeepAliveIdel:   n.KeepAliveIdel,
 				KeepAliveCount:  n.KeepAliveCount,