31
VLAN usage under Proxmox (lemmy.world)
submitted 1 day ago* (last edited 1 day ago) by athes@lemmy.world to c/selfhosted@lemmy.world
29 comments fedilink hide all child comments

Hello,

Just spent a good week installing my home server. Time to pause and lookback to what I've setup and ask your help/suggestions as I am wondering if my below configuration is a good approach or just a useless convoluted approach.

I have a Proxmox instance with 3 VLAN:

  • Management (192.168.1.x) : the one used by proxmox host and that can access all other VLANs

  • Servarr (192.168.100.x) : every arr related software + Jellyfin (all LXC). All outbound connectivity goes via VPN. Cant access any VLAN

  • myCloud (192.168.200.X): WIP, but basically planning to have things like Nextcloud, Immich, Paperless etc...

The original idea was to allow external access via Cloudlfare tunnel but finally decided to switch back to Tailscale for "myCloud" access (as I am expected to share this with less than 5 accounts). So:

  • myCloud now has Tailscale running on it.
  • myCloud can now access Servarr VLAN

Consequently to my choice of using tailscale, I had now to use a DNS server to resolve mydomain.com:

  • Servarr now has pihole as DNS server reachable across all VLAN

On the top of all that I have yet another VLAN for my raspberry Pi running Vaultwarden reachable only via my personal tailscale account.

I'm open to restart things from scratch (it's fun), so let me know.

Also wondering if using LXCs is better than docker especially when it comes to updates and longer term maintenance.

you are viewing a single comment's thread
view the rest of the comments
[-] teslasaur@lemmy.world -1 points 22 hours ago

You can't use the same subnet on different vlans if you ever intend for both of them to reach the internet. In that case you'd need a second router which just defeats the purpose

[-] athes@lemmy.world 1 points 20 hours ago

They are all defined as 192.168.x.y/24 Doesn't this make them in different subnets?

[-] curbstickle@lemmy.dbzer0.com 3 points 20 hours ago

Yes.

And to be clear about things, because that comment doesn't make any sense for VLANs - a VLAN can contain multiple subnets. You will not have a single subnet across multiple VLANs.

Your config is fine in that regard.

[-] curbstickle@lemmy.dbzer0.com 1 points 22 hours ago

You dont need to have the same subnet on different vlans. You also dont need them to each have a router, that isn't how this works.

Each VLAN gets a gateway, in a subnet accessible within that VLAN.

Under no circumstances do you need a separate physical router for having 2 VLANs on the same network. That's not how VLANs work.

this post was submitted on 01 Nov 2024
31 points (97.0% liked)

Selfhosted

39677 readers
460 users here now

A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

Rules:

  1. Be civil: we're here to support and learn from one another. Insults won't be tolerated. Flame wars are frowned upon.

  2. No spam posting.

  3. Posts have to be centered around self-hosting. There are other communities for discussing hardware or home computing. If it's not obvious why your post topic revolves around selfhosting, please include details to make it clear.

  4. Don't duplicate the full text of your blog or github here. Just post the link for folks to click.

  5. Submission headline should match the article title (don’t cherry-pick information from the title to fit your agenda).

  6. No trolling.

Resources:

Any issues on the community? Report it using the report flag.

Questions? DM the mods!

founded 1 year ago
MODERATORS
ruud@lemmy.world
Loki@lemmy.world
CannaVet@lemmy.world
devve@lemmy.world
HybridSarcasm@lemmy.world
HybridSarcasm@lemmy.hybridsarcasm.xyz