[My iptv decoder steels leases from LAN net dhcp but not from vlan dhcp

[EricPerl]

Yes. My english is limited. Its not my native language. I know its expected. Read on reddit that one person had identical problem as mine. Problem was solved by setting untagged vlan. How to set untagged vlan on opnsense?

Port configuration is done on the switches (or controllers for the switches). Allowed tags on trunk ports, untagging & tagging on access ports.

Tagging in OPN is done at the interface level.
* Interface assigned to physical device => untagged
* Interface assigned to VLAN device => tagged
On the wire used by OPN, the traffic is usually a mix of tagged frames (based on the vlan devices parented to that physical device).
Untagged traffic should not be mixed (recommended, although it may work).

[Siarap]

Im digging deeper. Its hardware/os related.
-Windows on my 5 year old computer connects to the internet trough everything i just can imagine (realtek network card).
-Fedora and debian on same pc connects to the internet only trough untagged vlan and LAN net. But vlan works on 5 year old pc with linux (unfortunatelly untaged).
-On pc about 10 years or more old there is no connection over anything related to vlan.

UPDATE: Windows 11 connects you with everything you want trough whatever you want. Linux sucks. Connected 11 years old pc with 14 years old network card and it works trough tagged vlan. Linux has problem with that with default setup. I dont know how to connect debian trough tagged vlan.

[meyergru]

So much wrong there:

1. It is not OS/hardware-related at all.
2. Linux does not suck. It can handle VLANs, I gave you the pointers on how to do it if need be.
3. That being said, you should not use VLANs on any client, because that is not how this is supposed to work. We explained that multiple times.

I give up here.

[Siarap]

So much wrong there:

1. It is not OS/hardware-related at all.
2. Linux does not suck. It can handle VLANs, I gave you the pointers on how to do it if need be.
3. That being said, you should not use VLANs on any client, because that is not how this is supposed to work. We explained that multiple times.

I give up here.

Im not configuring vlans on clients. Configuring this on opnsense, and managed switch. Linux connects only trough untagged vlan. Windows connects trough everything (even tagged). That was said.

I can say that problem is solved. Achived subnets separation with vlans on linux but on non tagged vlans. :-)

[Patrick M. Hausen]

Untrusted clients should never use tagged VLANs, only untagged switch ports. That's the point.