Hello,
I have a new docker (running on OMV) setup. I have several containers that I noticed would not be able to reach the internet (failed ping) when it’s left at its default bridge mode. However, when I set a new MacVLan, it works normally.
I have tried adding DNS onto /etc/docker/daemon.json as well as changing the MTU to be less than host’s ethernet.
Also, I have another duplicate OMV system running the same containers, nmcli shows that GENERAL.STATE connection is 100 (connected (externally)) vs GENERAL.STATE – for the affected system.
{
"Name": "bridge",
"Id": "eaa9de62f3e7e31de30b4c1a4f55eaaa5e75c29149f18988fa8a5e4233d73759",
"Created": "2024-11-05T19:08:47.012832935-05:00",
"Scope": "local",
"Driver": "bridge",
"EnableIPv6": false,
"IPAM": {
"Driver": "default",
"Options": null,
"Config": [
{
"Subnet": "172.17.0.0/16",
"Gateway": "172.17.0.1"
}
]
},
"Internal": false,
"Attachable": false,
"Ingress": false,
"ConfigFrom": {
"Network": ""
},
"ConfigOnly": false,
"Containers": {},
"Options": {
"com.docker.network.bridge.default_bridge": "true",
"com.docker.network.bridge.enable_icc": "true",
"com.docker.network.bridge.enable_ip_masquerade": "true",
"com.docker.network.bridge.host_binding_ipv4": "0.0.0.0",
"com.docker.network.bridge.name": "docker0",
"com.docker.network.driver.mtu": "1450"
},
"Labels": {}