1 lan 2 vlan from one nic configuration

interesting my isp is pppoe connection i have now pppoe configured on red ,will need 1 more modem i guess to make it work

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Actually not, you would only need to plug a cable from the red interface into your switch and the cable to connect the ISP as well, the two ports on the switch should be tagged into a red VLAN e.g. 05.
The port where the red interface of the IPfire is connected, then also Tagged VLAN for the green01 network.
In the IPfire you now put red05 and green01 on one card each with the VLAN like on the switch 01 + 05.
On this switch the remaining ports are set to Untagged VLAN green01, then this should work.
Only the port to the ISP should be set to PID05, all others should be 01.
I did not try but why should that not work with 3 or 4 VLANS. Ok quite a bottleneck, but feasible actually already.

may try and report back