Ok...
noob question: What is the difference in setting cpu port to tagged, untagged and off?
I've read and read and read... and I just don't understand 
Any pratical examples? 
Topic: Cpu port: tagged, untagged, off?
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Well it is simple, the cpu port is a physical port on the switch that is internally connected to the cpu of the router.
off=no traffic to the router cpy
untagged=untagged traffic to the cpu of the router, that is seen by the cpu as just lan traffic
taggged= tagged/trunked traffic to the cpu of the router
Yeah... this is what is writen everywhere...
Can I create a vlan, tagging port 1 and 2 (or with 2 untagged ports), and setting cpu port to off? So that devices on these ports comunicate with each other, but not with the router?
sure
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