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I'd setup Community PVLAN's per company and configure promiscuous ports for your uplinks and printers. That way they are all secured per company and cannot access the others.If you need a hand in setting this up, please let me know and I can give so...
It depends on what type of routing you want to do. If you wanted to do basic routing (RIP, static) then IP Base would do. If you want to do advanced routing (OSPF, EIGRP, etc) then you would need IP Services or Advanced IP Services.Please rate if t...