Hi Uwe,
ich habe jetzt testweise einen container mit fixer MAC erstellt und schließend die MAC geändert.
ich habe die MAC nun sowohl in der config.v2.json als auch in der qnap.json geändert, ich hänge mal bei datein mit rein, ggfs ist noch ein weiterer Parameter notwendig, im Fall der variablen MAC fehlt bzw. anders gestetzt ist.
config.v2.json
{"StreamConfig":{},"State":{"Running":false,"Paused":false,"Restarting":false,"OOMKilled":false,"RemovalInProgress":false,"Dead":false,"Pid":0,"ExitCode":0,"Error":"","StartedAt":"2018-11-01T20:43:08.00275663Z","FinishedAt":"2018-11-01T20:44:21.970185721Z","Health":null},"ID":"2b2e08a725a9c2264e6e9eb1e28b18a17a51d234754cc5aa435a62ef75c8c90f","Created":"2018-11-01T20:43:03.843762044Z","Managed":false,"Path":"docker-entrypoint.sh","Args":["mysqld"],"Config":{"Hostname":"test1","Domainname":"","User":"","AttachStdin":false,"AttachStdout":false,"AttachStderr":false,"ExposedPorts":{"3306/tcp":{}},"Tty":true,"OpenStdin":true,"StdinOnce":false,"Env":["PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin","GOSU_VERSION=1.7","MYSQL_MAJOR=5.7","MYSQL_VERSION=5.7.20-1debian8","MYSQL_RANDOM_ROOT_PASSWORD=yes"],"Cmd":["mysqld"],"ArgsEscaped":true,"Image":"terrychu/mysql:5.7.20","Volumes":{"/var/lib/mysql":{}},"WorkingDir":"","Entrypoint":["docker-entrypoint.sh"],"MacAddress":"02:42:1C:5A:D9:89","OnBuild":null,"Labels":{"com.qnap.qcs.network.mode":"bridge","com.qnap.qcs.version":""}},"Image":"sha256:d44c99eccb824b954c0de754b8b5fe55033ca1ea60c2e164da6b7ea5239309f5","NetworkSettings":{"Bridge":"","SandboxID":"b13f84766e4496af74f0521ecffbbd2cd58b4c58d48b6ff8bfff94b45273b423","HairpinMode":false,"LinkLocalIPv6Address":"","LinkLocalIPv6PrefixLen":0,"Networks":{"qnet-static-eth0-b03c93":{"IPAMConfig":{"IPv4Address":"192.168.178.21"},"Links":null,"Aliases":["2b2e08a725a9"],"NetworkID":"bd73dfc982bf806ee36c4ee621a289603bc526f1f0fc117dad53c7a597751186","EndpointID":"","Gateway":"","IPAddress":"","IPPrefixLen":0,"IPv6Gateway":"","GlobalIPv6Address":"","GlobalIPv6PrefixLen":0,"MacAddress":"","DriverOpts":null,"IPAMOperational":false}},"Service":null,"Ports":null,"SandboxKey":"/var/run/docker/netns/b13f84766e44","SecondaryIPAddresses":null,"SecondaryIPv6Addresses":null,"IsAnonymousEndpoint":false,"HasSwarmEndpoint":false},"LogPath":"/share/CACHEDEV1_DATA/Container/container-station-data/lib/docker/containers/2b2e08a725a9c2264e6e9eb1e28b18a17a51d234754cc5aa435a62ef75c8c90f/2b2e08a725a9c2264e6e9eb1e28b18a17a51d234754cc5aa435a62ef75c8c90f-json.log","Name":"/mysql-1","Driver":"overlay","Platform":"linux","MountLabel":"","ProcessLabel":"","RestartCount":0,"HasBeenStartedBefore":true,"HasBeenManuallyStopped":true,"MountPoints":{"/var/lib/mysql":{"Source":"","Destination":"/var/lib/mysql","RW":true,"Name":"038ecfc3a7703b7f14ce4ce2543d6b6231d59514af9b4f3113a0f45a23b3ad53","Driver":"local","Type":"volume","Spec":{}}},"SecretReferences":null,"ConfigReferences":null,"AppArmorProfile":"","HostnamePath":"/share/CACHEDEV1_DATA/Container/container-station-data/lib/docker/containers/2b2e08a725a9c2264e6e9eb1e28b18a17a51d234754cc5aa435a62ef75c8c90f/hostname","HostsPath":"/share/CACHEDEV1_DATA/Container/container-station-data/lib/docker/containers/2b2e08a725a9c2264e6e9eb1e28b18a17a51d234754cc5aa435a62ef75c8c90f/hosts","ShmPath":"/share/CACHEDEV1_DATA/Container/container-station-data/lib/docker/containers/2b2e08a725a9c2264e6e9eb1e28b18a17a51d234754cc5aa435a62ef75c8c90f/shm","ResolvConfPath":"/share/CACHEDEV1_DATA/Container/container-station-data/lib/docker/containers/2b2e08a725a9c2264e6e9eb1e28b18a17a51d234754cc5aa435a62ef75c8c90f/resolv.conf","SeccompProfile":"","NoNewPrivileges":false}
qnap.json
{"environment": [], "resource": {"device": [], "limit": {}}, "network": {"bridge": {"interface": {"bridge": "br0", "name": "eth0", "ip": "192.168.178.18", "gateway": "192.168.178.1", "netmask": "255.255.255.0", "display": "Adapter 1 (Virtual Switch 3)"}, "ip": [192, 168, 178, 21], "netmask": [255, 255, 255, 0], "mode": "static", "gateway": [192, 168, 178, 1]}, "mode": "bridge", "hostname": "test1", "mac_addr": "02:42:1C:5A:D9:89", "port": []}, "links": {}, "arch": "amd64", "image": "terrychu/mysql", "command": "", "volume": {"new": [], "host": {}, "container": []}, "working_dir": "", "version": "5.7.20", "entrypoint": "", "user": "", "autostart": true, "gpu": false, "type": "docker", "privileged": false, "name": "mysql-1"}
EDIT
Gerade nochmal geschaut, bei einem container ohne fixe MAC fehlt der entsprechende Eintrag in der qnap.json