VLANs Across Multiple Interfaces

superweasel

Here is a problem I have been struggling with:

WAN: PPPoE
LAN: igb0
OPT1: igb2

VLAN 10 -> igb0, 10.0.10.0/24
VLAN 20 -> igb0, 10.0.20.0/24
VLAN 30 -> igb2, 10.0.30.0/24
VLAN 40 -> igb2, 10.0.40.0/24
VLAN 50 -> igb2, 10.0.50.0/24

802.1Q Switches-
Switch 1 (SW1): port 1 is connected to igb0 (trunk)
Port 2: VLAN 20
Ports 3-5: VLAN 30

Switch 2 (SW2): port 1 is connected to igb2 (trunk)
Ports 2-4: VLAN 20
Ports 4-5: VLAN 40
Ports 6-8: VLAN 50

Is it possible to connect a device to SW2, port 4, have it have receive a DHCP address for VLAN 20 and be routable to other VLANs and the WAN? Or to put this another way, can pfSense trunk VLANs across interfaces?

If so, how do you go about setting this up in pfSense?

Thanks in advance

Derelict

VLANs are VLANs.

Interfaces > (assign) VLAN tab
Interfaces > (assign)

VLANs look like discrete interfaces to pfSense. When you assign an interface to a VLAN it egresses pfSense tagged on the parent interface. Received traffic tagged with the VLAN is presented to the same interface.

![Screen Shot 2015-05-30 at 3.32.39 PM.png](/public/imported_attachments/1/Screen Shot 2015-05-30 at 3.32.39 PM.png)
![Screen Shot 2015-05-30 at 3.32.39 PM.png_thumb](/public/imported_attachments/1/Screen Shot 2015-05-30 at 3.32.39 PM.png_thumb)
![Screen Shot 2015-05-30 at 3.32.56 PM.png](/public/imported_attachments/1/Screen Shot 2015-05-30 at 3.32.56 PM.png)
![Screen Shot 2015-05-30 at 3.32.56 PM.png_thumb](/public/imported_attachments/1/Screen Shot 2015-05-30 at 3.32.56 PM.png_thumb)
![Screen Shot 2015-05-30 at 3.41.01 PM.png](/public/imported_attachments/1/Screen Shot 2015-05-30 at 3.41.01 PM.png)
![Screen Shot 2015-05-30 at 3.41.01 PM.png_thumb](/public/imported_attachments/1/Screen Shot 2015-05-30 at 3.41.01 PM.png_thumb)

superweasel

Thanks for the reply.

I have attempted your setup, with all VLANs assigned to a single interface, in your example em0. This works fine, and you can route between VLANs on that interface. However, it appears VLANs are not trunked to other physical interfaces within pfSense, e.g. VLAN 10 is assigned to physical interface 0 in pfSense, switch with VLAN 10 assigned to some ports is physically connected to interface 1 which is not the assigned interface for VLAN 10 in pfSense.

If there is a way to make this work, I would greatly appreciate some setup detail or if not that would great to know as well.

Thanks

Derelict

pfSense is not a switch. Your switch is a switch.

Not sure what you're trying to do but whatever it is, it's beginning to sound like you're doing it wrong.