diff --git a/app/proxyman/outbound/handler.go b/app/proxyman/outbound/handler.go
index 69318de8..59890f21 100644
--- a/app/proxyman/outbound/handler.go
+++ b/app/proxyman/outbound/handler.go
@@ -295,37 +295,11 @@ func (h *Handler) Dial(ctx context.Context, dest net.Destination) (stat.Connecti
 		}
 
 		if h.senderSettings.Via != nil {
-
 			outbounds := session.OutboundsFromContext(ctx)
 			ob := outbounds[len(outbounds)-1]
-			var domain string
-			addr := h.senderSettings.Via.AsAddress()
-			domain = h.senderSettings.Via.GetDomain()
-			switch {
-			case h.senderSettings.ViaCidr != "":
-				ob.Gateway = ParseRandomIP(addr, h.senderSettings.ViaCidr)
-
-			case domain == "origin":
-				if inbound := session.InboundFromContext(ctx); inbound != nil {
-					if inbound.Local.IsValid() && inbound.Local.Address.Family().IsIP() {
-						ob.Gateway = inbound.Local.Address
-						errors.LogDebug(ctx, "use inbound local ip as sendthrough: ", inbound.Local.Address.String())
-					}
-				}
-			case domain == "srcip":
-				if inbound := session.InboundFromContext(ctx); inbound != nil {
-					if inbound.Source.IsValid() && inbound.Source.Address.Family().IsIP() {
-						ob.Gateway = inbound.Source.Address
-						errors.LogDebug(ctx, "use inbound source ip as sendthrough: ", inbound.Source.Address.String())
-					}
-				}
-			//case addr.Family().IsDomain():
-			default:
-				ob.Gateway = addr
-
-			}
-
+			h.SetOutboundGateway(ctx, ob)
 		}
+
 	}
 
 	if conn, err := h.getUoTConnection(ctx, dest); err != os.ErrInvalid {
@@ -340,6 +314,38 @@ func (h *Handler) Dial(ctx context.Context, dest net.Destination) (stat.Connecti
 	return conn, err
 }
 
+func (h *Handler) SetOutboundGateway(ctx context.Context, ob *session.Outbound) {
+	if ob.Gateway == nil && h.senderSettings != nil && h.senderSettings.Via != nil {
+		var domain string
+		addr := h.senderSettings.Via.AsAddress()
+		domain = h.senderSettings.Via.GetDomain()
+		switch {
+		case h.senderSettings.ViaCidr != "":
+			ob.Gateway = ParseRandomIP(addr, h.senderSettings.ViaCidr)
+
+		case domain == "origin":
+			if inbound := session.InboundFromContext(ctx); inbound != nil {
+				if inbound.Local.IsValid() && inbound.Local.Address.Family().IsIP() {
+					ob.Gateway = inbound.Local.Address
+					errors.LogDebug(ctx, "use inbound local ip as sendthrough: ", inbound.Local.Address.String())
+				}
+			}
+		case domain == "srcip":
+			if inbound := session.InboundFromContext(ctx); inbound != nil {
+				if inbound.Source.IsValid() && inbound.Source.Address.Family().IsIP() {
+					ob.Gateway = inbound.Source.Address
+					errors.LogDebug(ctx, "use inbound source ip as sendthrough: ", inbound.Source.Address.String())
+				}
+			}
+		//case addr.Family().IsDomain():
+		default:
+			ob.Gateway = addr
+
+		}
+
+	}
+}
+
 func (h *Handler) getStatCouterConnection(conn stat.Connection) stat.Connection {
 	if h.uplinkCounter != nil || h.downlinkCounter != nil {
 		return &stat.CounterConnection{
diff --git a/proxy/freedom/freedom.go b/proxy/freedom/freedom.go
index 75b53114..bb8877b9 100644
--- a/proxy/freedom/freedom.go
+++ b/proxy/freedom/freedom.go
@@ -89,6 +89,7 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 
 	destination := ob.Target
 	origTargetAddr := ob.OriginalTarget.Address
+	dialer.SetOutboundGateway(ctx, ob)
 	outGateway := ob.Gateway
 	UDPOverride := net.UDPDestination(nil, 0)
 	if h.config.DestinationOverride != nil {
@@ -481,7 +482,10 @@ func (w *NoisePacketWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
 			if err != nil {
 				return err
 			}
-			w.Writer.WriteMultiBuffer(buf.MultiBuffer{buf.FromBytes(noise)})
+			err = w.Writer.WriteMultiBuffer(buf.MultiBuffer{buf.FromBytes(noise)})
+			if err != nil {
+				return err
+			}
 
 			if n.DelayMin != 0 || n.DelayMax != 0 {
 				time.Sleep(time.Duration(crypto.RandBetween(int64(n.DelayMin), int64(n.DelayMax))) * time.Millisecond)
diff --git a/transport/internet/dialer.go b/transport/internet/dialer.go
index 9a1e44c0..43c18b3e 100644
--- a/transport/internet/dialer.go
+++ b/transport/internet/dialer.go
@@ -26,6 +26,9 @@ type Dialer interface {
 
 	// DestIpAddress returns the ip of proxy server. It is useful in case of Android client, which prepare an IP before proxy connection is established
 	DestIpAddress() net.IP
+
+	// SetOutboundGateway set outbound gateway
+	SetOutboundGateway(ctx context.Context, ob *session.Outbound)
 }
 
 // dialFunc is an interface to dial network connection to a specific destination.