add default fake ip filter list

core/src/main/golang/config/defaults.go

@@ -0,0 +1,15 @@
+package config
+
+var defaultFakeIPFilter = []string{
+	// stun services
+	"+.stun.*.*",
+	"+.stun.*.*.*",
+	"+.stun.*.*.*.*",
+
+	// Google Voices
+	"lens.l.google.com",
+	"stun.l.google.com",
+
+	// Nintendo Switch
+	"*.n.n.srv.nintendo.net",
+}

core/src/main/golang/config/patch.go

@@ -32,14 +32,10 @@ func init() {
 			GeoIP:  false,
 			IPCIDR: []string{},
 		},
-		Listen:       ":0",
-		EnhancedMode: dns.FAKEIP,
-		FakeIPRange:  "198.18.0.0/16",
-		FakeIPFilter: []string{ // default fake-ip filters for stun services
-			"+.stun.*.*",
-			"+.stun.*.*.*",
-			"+.stun.*.*.*.*",
-		},
+		Listen:            ":0",
+		EnhancedMode:      dns.FAKEIP,
+		FakeIPRange:       "198.18.0.0/16",
+		FakeIPFilter:      defaultFakeIPFilter,
 		DefaultNameserver: defaultNameServers,
 	}
 }