diff --git a/execute.sh b/execute.sh
index c6b2be2..c20dcf5 100644
--- a/execute.sh
+++ b/execute.sh
@@ -8,15 +8,32 @@ export ANSIBLE_CONFIG=./ansible.cfg
 
 # Ermittle den nächsten freien Container-Namen
 base_name="ansible"
+network_name="ansible-dualstack"
 counter=1
 while docker ps -a --format '{{.Names}}' | grep -q "^${base_name}-${counter}$"; do
   counter=$((counter + 1))
 done
 container_name="${base_name}-${counter}"
 
+if docker network inspect "$network_name" >/dev/null 2>&1; then
+  network_ipv6_enabled=$(docker network inspect -f '{{.EnableIPv6}}' "$network_name" 2>/dev/null)
+  if [ "$network_ipv6_enabled" != "true" ]; then
+    echo "Docker-Netzwerk '$network_name' existiert bereits ohne IPv6-Unterstuetzung." >&2
+    echo "Bitte Netzwerk entfernen oder einen anderen Netzwerknamen verwenden." >&2
+    exit 1
+  fi
+else
+  if ! docker network create --driver bridge --ipv6 "$network_name" >/dev/null; then
+    echo "Docker-Netzwerk '$network_name' mit IPv6 konnte nicht erstellt werden." >&2
+    echo "Pruefe, ob Docker IPv6 fuer benutzerdefinierte Bridge-Netze unterstuetzt." >&2
+    exit 1
+  fi
+fi
+
 docker run --rm -dit \
   --name "$container_name" \
   --hostname "$container_name" \
+  --network "$network_name" \
   -e ANSIBLE_HOST_KEY_CHECKING=False \
   -e ANSIBLE_SSH_ARGS='-o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null' \
   -e ANSIBLE_CONFIG=./ansible.cfg \
@@ -28,12 +45,14 @@ docker run --rm -dit \
 
 docker exec "$container_name" sh -lc "mkdir -p /root/.ssh && chmod 700 /root/.ssh && printf 'Host *\n  StrictHostKeyChecking no\n  UserKnownHostsFile /dev/null\n' > /root/.ssh/config && chmod 600 /root/.ssh/config"
 
-container_ip=$(docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' "$container_name" 2>/dev/null)
+container_ipv4=$(docker inspect -f '{{range .NetworkSettings.Networks}}{{if .IPAddress}}{{.IPAddress}}{{end}}{{end}}' "$container_name" 2>/dev/null)
+container_ipv6=$(docker inspect -f '{{range .NetworkSettings.Networks}}{{if .GlobalIPv6Address}}{{.GlobalIPv6Address}}{{end}}{{end}}' "$container_name" 2>/dev/null)
 container_os=$(docker exec "$container_name" sh -c 'grep PRETTY_NAME /etc/os-release 2>/dev/null | cut -d= -f2 | tr -d "\"" 2>/dev/null')
 
 echo "-----------------------------------"
 echo "Container Name : $container_name"
-echo "Container IP   : ${container_ip:-n/a}"
+echo "Container IPv4 : ${container_ipv4:-n/a}"
+echo "Container IPv6 : ${container_ipv6:-n/a}"
 echo "Container OS   : ${container_os:-n/a}"
 echo "-----------------------------------"