Strayer Posted September 16, 2020 Share Posted September 16, 2020 I'm trying to run a container with a static IPv4 and IPv6 address (specifically a DNS server that will be propagated by the router, thus the requirement for static IP addresses). For this I'm trying to create a Docker macvlan network so I can run containers, reachable from other VLANs via the router. The network itself is set up correctly and works as every other VLAN I have: root@noatun:~# ip addr show dev br0.8 17: br0.8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000 link/ether b4:2e:99:ad:6c:51 brd ff:ff:ff:ff:ff:ff inet 10.100.80.4/24 brd 10.100.80.255 scope global dynamic noprefixroute br0.8 valid_lft 41348sec preferred_lft 35948sec inet6 fd3b:2815:be50::967/128 scope global dynamic noprefixroute valid_lft 42615sec preferred_lft 42615sec inet6 2003:e5:d730:6200::967/128 scope global dynamic noprefixroute valid_lft 13644sec preferred_lft 1044sec inet6 fd3b:2815:be50:0:9f84:ac1a:9cea:ee0d/64 scope global mngtmpaddr noprefixroute valid_lft forever preferred_lft forever inet6 2003:e5:d730:6200:9834:1760:1142:e4a0/64 scope global dynamic mngtmpaddr noprefixroute valid_lft 13645sec preferred_lft 1045sec inet6 fe80::e8c5:16ff:fe3d:3d8a/64 scope link valid_lft forever preferred_lft forever The Docker network doesn't have any IPv6 support enabled: root@noatun:~# docker network inspect br0.8 [ { "Name": "br0.8", "Id": "ba9083ca9744046029a93b5d170beede78f348852830a1ff225d1cee29a19adb", "Created": "2020-09-16T14:49:38.714737243+02:00", "Scope": "local", "Driver": "macvlan", "EnableIPv6": false, "IPAM": { "Driver": "default", "Options": {}, "Config": [ { "Subnet": "10.100.80.0/24", "IPRange": "10.100.80.128/25", "Gateway": "10.100.80.1", "AuxiliaryAddresses": { "server": "10.100.80.4" } } ] }, "Internal": false, "Attachable": false, "Ingress": false, "ConfigFrom": { "Network": "" }, "ConfigOnly": false, "Containers": {}, "Options": { "parent": "br0.8" }, "Labels": {} } ] IPv6 is enabled in the Docker settings: It seems like I'm missing something here, but I don't know what else to try. Quote Link to comment
Strayer Posted September 25, 2020 Author Share Posted September 25, 2020 I fixed this for now by creating the Docker network manually and not checking the custom networks in the Unraid Docker settings. docker network create -d macvlan \ --subnet=10.100.80.0/24 --gateway=10.100.80.1 \ --subnet=fd3b:2815:be50::8/64 --gateway=fd3b:2815:be50::8 \ --ipv6 \ --aux-address='dhcp2=10.100.80.2' \ --aux-address='dhcp3=10.100.80.3' \ --aux-address='dhcp4=10.100.80.4' \ --aux-address='dhcp5=10.100.80.5' \ -o parent=br0.8 \ vlan8 Nice side effect is that I can now use the full address range and tell Docker to not do something with the very small DHCP range at the start of the subnet. Quote Link to comment
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