Post #3787375
2026-07-06 05:38 UTC
I’m a bit late to the party. I was a network admin in another life and believe I can help out. I’ve skimmed existing conversations but not fully poured over them.
That said: I’d print the routing tables for the switches and firewall and review them. Considering firewall rules is sensible but it seems you’ve already done quite a bit of investigation there. It sounds like there is some vlan configuration missing. Like one of the switches doesn’t have the vlan interface defined or named in its vlan database.
Review the routing tables and confirm who owns each vlan and what those networks are aware of. Also toggle your logging options on so you can review them and test with more info than pass/fail.
It very well may be a OPNsense firewall knowledge thing but I’m not convinced. If you’re still working on this tomorrow I’d be happy to help root-cause the problem and fill in the gaps between RTFM and old YouTube videos. :)
Replies (1)
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@ampersandrew@lemmy.world 2026-07-06 23:33
I might not understand what you mean, but doing the best I can figure out, the output from the endpoint mini PC running ip route is: 192.168.10.0/24 dev enxc84d4422aa48 proto kernel scope link src 192.168.10.157 metric 100 From the OPNsense firewall, the trace route looks like this (I would have expected to see the switches that it hops to in between, but I don’t see them here): I can’t find any option to print routing tables in my switches, both of them Netgear GS305E switches. I don’t see any mention of it in the manual either. I suspect that what you asked me to do was lost on me.