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Can't access NPM when assigning a macvlan IP to it (alien.top)
submitted 1 year ago by Illuminated_Humanoid@alien.top to c/main@selfhosted.forum
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Hi

Stock nginx built into Synology DSM won't cut it, so I decided to install Nginx Proxy Manager. Before doing so, I created a macvlan and assigned the NPM container to use the assigned IP. Once install is finished, and I try to launch NPM, it fails to load. I tried the same install without macvlan, and it works and loads just fine. I have installed many other containers on macvlan, so I know what I am doing and have the knowledge and experience, but I have never run into this before where there seems to be a conflict I am not aware of.

Help? Anyone?

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[-] isleepbad@alien.top 1 points 1 year ago

So basically all you did was create a docker network with no macvlan on your synology. The docker network you created will simply look for a macvlan and communicate with it. There needs to be an actual macvlan there to communicate with. You really should read through my responses again.

Here are some pointers:

  • Your step 2 needs an auxiliary address for your host. --aux-address="host=192.168.2.201"

  • Look at my step 3. You have to run those commands to setup the macvlan on your synology. You have to use your auxiliary host address in the series of commands I showed you. When you run them properly you will see the host show up in your router.

[-] Illuminated_Humanoid@alien.top 1 points 1 year ago

Okay, so here's where I'm confused. From my understanding you say all I did is create a docker network and I need to create a macvlan but the 'npm_network' that I created literally says macvlan beside it in the network tab of either container manager or portainer. Even the command literally says 'create macvlan' so I am confused why you say that's not a macvlan and only a docker network.
Am I making sense? Also, two other outdated guides ive seen on this describe it the same way. The way you describe it is a first that I've seen. Not saying you're wrong, but there's certainly a difference I'm noticing.

[-] isleepbad@alien.top 1 points 1 year ago

Those other guides assume you already have a macvlan and want to use docker on it. Like I said, not many complete guides out there. Mine is the most comprehensive you'll find.

The gist of it is, you create a macvlan network on your NAS then you place a docker network on that macvlan network.

this post was submitted on 19 Oct 2023
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