diff --git a/include/gmrf/gmrf.h b/include/gmrf/gmrf.h
index 05657fd..22bed35 100644
--- a/include/gmrf/gmrf.h
+++ b/include/gmrf/gmrf.h
@@ -58,4 +58,6 @@ size_t gmrf_iface_get_mtu(gmrf_context_t *ctx, gmrf_iface_t *iface);
 bool gmrf_iface_send(gmrf_context_t *ctx, gmrf_iface_t *iface, const void *data, size_t len, const gmrf_addr_t *dest);
 bool gmrf_iface_send_bc(gmrf_context_t *ctx, gmrf_iface_t *iface, const void *data, size_t len);
 
+typedef void (*gmrf_handle_packet_func)(gmrf_context_t *ctx, gmrf_iface_t *iface, const gmrf_addr_t *source, const void *data, size_t len);
+
 #endif /* _GMRF_GMRF_H_ */
diff --git a/mmss/mmss.c b/mmss/mmss.c
index bcdf3a8..eca99ad 100644
--- a/mmss/mmss.c
+++ b/mmss/mmss.c
@@ -26,12 +26,16 @@
 
 #include "mmss.h"
 
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+
 
 int main() {
 	mmss_context_t ctx = { .now = 0 };
 
 	mmss_network_t net = { .mtu = 1500 };
-	mmss_node_t node1 = {}, node2 = {};
+	gmrf_context_t node1 = { .mmss = &ctx }, node2 = { .mmss = &ctx };
 	gmrf_iface_t iface1 = {}, iface2 = {};
 
 	iface1.net = &net;
@@ -48,8 +52,39 @@ int main() {
 	iface2.network_next = &iface1;
 	net.interfaces = &iface2;
 
-	gmrf_context_t ctx_node1 = {&ctx, &node1};
-	gmrf_context_t ctx_node2 = {&ctx, &node2};
+	node2.next = &node1;
+	gmrf_context_t *nodes = &node2;
+
+	while (true) {
+		int timeout = mmss_queue_timeout(&ctx, &ctx.packet_queue);
+
+		if (timeout < 0) {
+			fprintf(stderr, "Nothing queued, deadlock occured.\n");
+			break;
+		}
+
+		if (timeout > 0) {
+			assert(!mmss_queue_get(&ctx, &ctx.packet_queue));
+
+			ctx.now += timeout;
+			timeout = mmss_queue_timeout(&ctx, &ctx.packet_queue);
+		}
+
+		assert(timeout == 0);
+
+		while (timeout == 0) {
+			mmss_packet_t *packet = mmss_queue_get(&ctx, &ctx.packet_queue);
+			assert(packet);
+
+			packet->dest->node->handle_packet(packet->dest->node, packet->dest,
+							  &packet->source->address, packet->data,
+							  packet->len);
+
+			free(packet);
+
+			timeout = mmss_queue_timeout(&ctx, &ctx.packet_queue);
+		}
+	}
 
 	return 0;
 }
diff --git a/mmss/mmss.h b/mmss/mmss.h
index 81a446f..cabd7cd 100644
--- a/mmss/mmss.h
+++ b/mmss/mmss.h
@@ -37,10 +37,13 @@ struct mmss_context {
 	mmss_queue_t packet_queue;
 };
 
-struct mmss_node {
-	mmss_node_t *next;
+struct gmrf_context {
+	gmrf_context_t *next;
 
+	mmss_context_t *mmss;
 	gmrf_iface_t *interfaces;
+
+	gmrf_handle_packet_func handle_packet;
 };
 
 struct mmss_network {
@@ -66,16 +69,11 @@ struct gmrf_iface {
 	gmrf_iface_t *node_next;
 	gmrf_iface_t *network_next;
 
-	mmss_node_t *node;
+	gmrf_context_t *node;
 	mmss_network_t *net;
 
 	gmrf_addr_t address;
 };
 
-struct gmrf_context {
-	mmss_context_t *mmss;
-	mmss_node_t *node;
-};
-
 
 #endif /* _GMRF_MMSS_MMSS_H_ */
diff --git a/mmss/types.h b/mmss/types.h
index b7fe24d..56e6250 100644
--- a/mmss/types.h
+++ b/mmss/types.h
@@ -28,7 +28,6 @@
 #define _GMRF_MMSS_TYPES_H_
 
 typedef struct mmss_context mmss_context_t;
-typedef struct mmss_node mmss_node_t;
 typedef struct mmss_network mmss_network_t;
 typedef struct mmss_packet mmss_packet_t;