LAG Question with Three Subnets

[spetrillo]

Right now I currently have 3 NICs dedicated to three separate subnets. Could I just LAG the three NICs together and then just setup three VLANs for the separate subnets and make the three VLANs accessible across the LAG? Does that make sense?

[spetrillo]

If that indeed makes sense then do I really need to set an IP for the LAG?

[bartjsmit]

Yes, this is a common use case to allocate bandwidth across a trunk. E.g. one VLAN can use 1.5 Gbps, leaving 1.5 for the rest.

If that indeed makes sense then do I really need to set an IP for the LAG?

A LAG is not a layer-3 device and does not need an IP address any more than a single cable.

Bart...

[spetrillo]

OK new question...

I have the LAG setup on OPNsense and its protocol is Load Balance. It is connected to a Netgear switch that has its trunk ports set for LACP. When I change the protocol on OPNsens to LACP I lose the LAG completely. It does not seem to like LACP. Has anyone had this kind of issue and is it incompatibility between OPNsense and my switch?