diff --git a/etc/labs/lab18-loopback.conf b/etc/labs/lab18-loopback.conf
new file mode 100644
index 000000000..d74c9700b
--- /dev/null
+++ b/etc/labs/lab18-loopback.conf
@@ -0,0 +1,57 @@
+nodes = {
+	webrtc_loopback = {
+		type = "webrtc",
+
+		format = "json"
+
+		in = {
+			signals = (
+				{ name = "signal", type = "float", unit = "unit" },
+				{ name = "signal", type = "float", unit = "unit" },
+				{ name = "signal", type = "float", unit = "unit" }
+			)
+		}
+
+		out = {
+			signals = (
+				{ name = "signal", type = "float", unit = "unit" },
+				{ name = "signal", type = "float", unit = "unit" },
+				{ name = "signal", type = "float", unit = "unit" }
+			)
+		}
+
+		# A unique session identifier which must be shared between two nodes
+		session = "sessions/villas-test"
+
+		# Address to the websocket signaling server
+		server = "https://villas.k8s.eonerc.rwth-aachen.de/ws/signaling"
+
+		# Limit the number of times a channel will retransmit data if not successfully delivered.
+		# This value may be clamped if it exceeds the maximum value supported.
+		max_retransmits = 0
+
+		# Number of seconds to wait for a WebRTC connection before proceeding the start
+		# of VILLASnode. Mainly used for testing
+		# wait_seconds = 10 # in seconds
+
+		# Indicates if data is allowed to be delivered out of order.
+		# The default value of false, does not make guarantees that data will be delivered in order.
+		ordered = false
+
+		# Setting for Interactive Connectivity Establishment
+    # If empty then configured servers in signaling server are used.
+		ice = {
+		# List of STUN/TURN servers
+		# servers = (
+		)
+	  }
+  }
+}
+paths = (
+	{
+		in = "webrtc_loopback"
+		out = "webrtc_loopback"
+
+		hooks = ( { type = "print" })
+	}
+)
diff --git a/etc/labs/lab18-siggen.conf b/etc/labs/lab18-siggen.conf
new file mode 100644
index 000000000..1b97cc042
--- /dev/null
+++ b/etc/labs/lab18-siggen.conf
@@ -0,0 +1,69 @@
+nodes = {
+	webrtc_siggen = {
+		type = "webrtc",
+
+		format = "json"
+
+		in = {
+			signals = (
+				{ name = "signal", type = "float", unit = "unit" },
+				{ name = "signal", type = "float", unit = "unit" },
+				{ name = "signal", type = "float", unit = "unit" }
+			)
+		}
+
+		out = {
+			signals = (
+				{ name = "signal", type = "float", unit = "unit" },
+				{ name = "signal", type = "float", unit = "unit" },
+				{ name = "signal", type = "float", unit = "unit" }
+			)
+		}
+
+		# A unique session identifier which must be shared between two nodes
+		session = "villas-test"
+
+		# Address to the websocket signaling server
+		server = "https://villas.k8s.eonerc.rwth-aachen.de/ws/signaling"
+
+		# Limit the number of times a channel will retransmit data if not successfully delivered.
+		# This value may be clamped if it exceeds the maximum value supported.
+		max_retransmits = 0
+
+		# Number of seconds to wait for a WebRTC connection before proceeding the start
+		# of VILLASnode. Mainly used for testing
+		wait_seconds = 10 # in seconds
+
+		# Indicates if data is allowed to be delivered out of order.
+		# The default value of false, does not make guarantees that data will be delivered in order.
+		ordered = false
+
+		# Setting for Interactive Connectivity Establishment
+    # If empty then configured servers in signaling server are used.
+		ice = {
+		# List of STUN/TURN servers
+		# servers = (
+    )
+	  }
+  }
+	siggen = {
+        type = "signal"
+        signal = [ "sine", "pulse", "square" ]
+        values = 3,         # Number of values per sample
+        limit = 1,         # Number of samples to generate
+		    rate = 1,           # Rate in Hz
+    }
+}
+paths = (
+	{
+		in = "siggen"
+		out = "webrtc_siggen"
+
+		hooks = ( { type = "print" })
+	},
+	{
+		in = "webrtc_siggen"
+
+		hooks = ( { type = "print" })
+	}
+)
diff --git a/etc/labs/lab18.conf b/etc/labs/lab18.conf
deleted file mode 100644
index e3e84cf90..000000000
--- a/etc/labs/lab18.conf
+++ /dev/null
@@ -1,37 +0,0 @@
-# SPDX-FileCopyrightText: 2014-2023 Institute for Automation of Complex Power Systems, RWTH Aachen University
-# SPDX-License-Identifier: Apache-2.0
-
-# docker run -v C:\Git\villas\node:/node -ti registry.git.rwth-aachen.de/acs/public/villas/node:master node /node/etc/labs/lab18.conf
-
-nodes = {
-        webrtc = {
-                type = "webrtc"
-                session = "KUCHEN"
-                server = "https://villas.k8s.eonerc.rwth-aachen.de/ws/signaling"
-                wait_seconds = 120
-                in = {
-                        hooks = ("stats")
-                }
-        }
-
-        signal = {
-                type = "signal.v2"
-                rate = 0.2
-                in = {
-                        signals = {
-                                signal = "mixed"
-                                count = 5
-                        }
-                }
-        }
-}
-
-paths = (
-        {
-                in = "webrtc"
-        },
-        {
-                in = "signal"
-                out = "webrtc"
-        }
-)