diff --git a/socks5.go b/socks5.go
index df81406..5d4a390 100644
--- a/socks5.go
+++ b/socks5.go
@@ -176,3 +176,10 @@ func (c *UDPConn) WriteTo(p []byte, addr net.Addr) (n int, err error) {
 	}
 	return n, nil
 }
+
+func (c *UDPConn) SetReadBuffer(i int) error {
+	return c.PacketConn.(*net.UDPConn).SetReadBuffer(i)
+}
+func (c *UDPConn) SetWriteBuffer(i int) error {
+	return c.PacketConn.(*net.UDPConn).SetWriteBuffer(i)
+}
diff --git a/test/.DS_Store b/test/.DS_Store
new file mode 100644
index 0000000..6bbda5c
Binary files /dev/null and b/test/.DS_Store differ