I have a small business switch, SF300 series from Cisco, and I would like to set it up with 2 VLANs that should have no interaction. I will treat them as if they were 2 physically separate switches. There will be a few PCs and servers on each VLAN and each will connect to its own router/firewall. By default the layer3 switch wants to route all IP traffic between the 2 VLANs, what is the most straightforward way to stop all interVLAN traffic? Thanks.