Below is a digram of my network. Right now all networks can talk to each other. For example, if I am on a server in the 10.4.0.0 network, from there I can RDP into a server in the 10.5.0.0 network. I need to create a access-list so these networks can't talk to each other. I am using VTP, thats why all switches share a common VLAN. Can someone provide me with an access-list example to accomplish this. thanks.