diff --git a/doc/tutorial_resources/oai-cn5g/docker-compose.yaml b/doc/tutorial_resources/oai-cn5g/docker-compose.yaml
index 151fadb3ee..c12449ff61 100644
--- a/doc/tutorial_resources/oai-cn5g/docker-compose.yaml
+++ b/doc/tutorial_resources/oai-cn5g/docker-compose.yaml
@@ -156,7 +156,7 @@ services:
         container_name: oai-ext-dn
         image: oaisoftwarealliance/trf-gen-cn5g:latest
         entrypoint: /bin/bash -c \
-              "ip route add 10.0.0.0/16 via 192.168.70.134 dev eth0; ip route; sleep infinity"
+              "ip route add 10.0.0.0/16 via 192.168.70.134 dev eth0; ip route; iperf3 -s -D; sleep infinity"
         command: ["/bin/bash", "-c", "trap : SIGTERM SIGINT; sleep infinity & wait"]
         healthcheck:
             test: /bin/bash -c "ip r | grep 10.0.0"