PS: Platform is Debian 10.2. Docker is version 18.06.1~ce~3-0~debian. I had setup a macvlan using docker network create -d macvlan -o parent=br0 --subnet=172.19.96.0/20 greylan /etc/network/interfaces: auto eth0 iface eth0 inet manual auto br0 iface br0 inet static address 172.19.96.191/20 gateway 172.19.96.1 bridge_ports eth0 bridge_stp off bridge_waitport 0 There was one Docker container running. compose file: version: '3.7' services: jenkins: image: jenkins/jenkins:lts container_name: jenkins environment: - JAVA_OPTS=-Xmx2G - JENKINS_OPTS=--httpsPort=8443 --httpsPrivateKey=/var/jenkins_home/ssl/platjenkins.key.pem --httpsCertificate=/var/jenkins_home/ssl/platjenkins.cert.pem ports: - "8443:8443" - "50000:50000" volumes: - /export/docker-persistent/jenkins_home:/var/jenkins_home networks: greylan: ipv4_address: 172.19.96.46 restart: unless-stopped networks: greylan: external: true Please note the port mapping lines that were kept by accident. Since I omitted these lines there was no hiccup anymore Regards Harri
