Avi Drissman :vm:

@avidrissman@mas.to

I just spent five hours in a networking horror show deep in Linux networking and VLANs. tl;dr: be very aware of what VLANs your upstream switch port is tagging vs which it has native. If you tell your downstream server that a VLAN is tagged but it’s actually native, things fail in surprising and painful ways. avi.drissman.com/2026/02/a-war

avi.drissman.com

A warning about VLANs in Proxmox or general Linux networking

A heads-up for those working with Proxmox or dealing with ifupdown networking in general. Keyword bait: my Proxmox server sees the network ...

February 23, 2026 at 4:33:02 AM
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