Help, no network in windows systemwhile creating docker container in synology about windows

[kroese]

If you also followed the steps for DHCP=Y I think that is not supported on a Synology device because its kernel (v4) does not have the macvtap interface that newer Linux kernels have.

If you only did macvlan without DHCP=Y i think it should work, but maybe just stick to bridge mode because the Docker on Synology is a bit different than the normal Docker, so I cant garantuee it works.

[denny0810]

The docker is sticked to brigde mode. Below is the docker-compose I used to create the container. windows dirver was requested when the setup started which i select the option as " Red Hat VirtIO SCSI pass-through controller (D:\amd64\w10\vioscsi.inf)" .

version: "3"
services:
  windows:
    image: dockurr/windows
    container_name: win10_ltsc2019
    devices:
      - /dev/kvm
  #    - /dev/sda
  #    - /dev/sdb
    cap_add:
      - NET_ADMIN
    networks:
      macvlan_net1:
        ipv4_address: 192.168.1.120
#    ports:
#     - 8006:8006
#      - 3389:3389/tcp
#      - 3389:3389/udp
    volumes:
      - /volume1/docker/dockerWin/storage:/storage
    environment:
      VERSION: "https://example.com/win.iso"
#      MANUAL: "Y"
      RAM_SIZE: "4G"
      CPU_CORES: "2"
      DISK_SIZE: "64G"
#      DEVICE: "/dev/sda"
#      DEVICE2: "/dev/sdb"
    stop_grace_period: 2m
    restart: on-failure
networks:
  macvlan_net1:
    external: true

If you also followed the steps for DHCP=Y I think that is not supported on a Synology device because its kernel (v4) does not have the macvtap interface that newer Linux kernels have.

If you only did macvlan without DHCP=Y i think it should work, but maybe just stick to bridge mode because the Docker on Synology is a bit different than the normal Docker, so I cant garantuee it works.

[kroese]

Did you install the NetKVM driver for the networkcard? Otherwise you have no network. Also install virtio-win-gt-x64.msi as described in the FAQ for manual install.

[denny0810]

It works now aftering installing the NetKVM. Thanks a lot!
I found 2 small issues.

1. when restarts the docker, windows will always create a new network interface that cause a long list of the network interface in the registry file.
2. the macvlan is created to possess ipv4 and ipv6 addresses. but in the windows i found the ipv6 cannot work.

[kroese]

The first issue I dont know about. Maybe Windows does this if the MAC address changes, but I generate the MAC from the container name, so it should stay the same after reboot. Maybe its a problem of the NetKVM driver, but I did not create that driver so it should be fixed by its author.

The second issue is maybe because I dont forward the IPv6 traffic correctly in bridge mode. It can be solved when setting DHCP=Y because that mode has no forwarding. But as you are using a Synology you cannot use this mode, so I dont have a quick solution for that.