diff --git a/transport/internet/sockopt_darwin.go b/transport/internet/sockopt_darwin.go
index 86af492a..f684de98 100644
--- a/transport/internet/sockopt_darwin.go
+++ b/transport/internet/sockopt_darwin.go
@@ -200,6 +200,12 @@ func applyInboundSocketOptions(network string, fd uintptr, config *SocketConfig)
 		}
 	}
 
+	if config.V6Only {
+		if err := unix.SetsockoptInt(int(fd), unix.IPPROTO_IPV6, unix.IPV6_V6ONLY, 1); err != nil {
+			return errors.New("failed to set IPV6_V6ONLY").Base(err)
+		}
+	}
+
 	return nil
 }
 
diff --git a/transport/internet/sockopt_windows.go b/transport/internet/sockopt_windows.go
index e1c1d25e..cbd3b41e 100644
--- a/transport/internet/sockopt_windows.go
+++ b/transport/internet/sockopt_windows.go
@@ -15,6 +15,7 @@ const (
 	IPV6_UNICAST_IF = 31
 	IP_MULTICAST_IF = 9
 	IPV6_MULTICAST_IF = 9
+	IPV6_V6ONLY = 27
 )
 
 func setTFO(fd syscall.Handle, tfo int) error {
@@ -90,6 +91,12 @@ func applyInboundSocketOptions(network string, fd uintptr, config *SocketConfig)
 		}
 	}
 
+	if config.V6Only {
+		if err := syscall.SetsockoptInt(syscall.Handle(fd), syscall.IPPROTO_IPV6, IPV6_V6ONLY, 1); err != nil {
+			return errors.New("failed to set IPV6_V6ONLY").Base(err)
+		}
+	}
+
 	return nil
 }