Cisco – Vlan trunking and routing

ciscotrunkvlan

I need help with something.

I have this topology and i want to know how to go about configuring it:

I have 4 vlans and 10 hosts and 6 switches
I have created 4 vlans
 vlan 2- Admin
 Vlan 3 - Academic
 Vlan 4 - Research
 Vlan 5 - Server
  1. I want all the traffic originating from academic and research should not reach admin vlan
  2. All the vlans can reach server vlans
  3. generate traffic from hosts

I have created trunk in all the switches and allowed all the vlans to pass through, but what I don't understand is how to go about the rest.

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Best Answer

By default different Vlans won't communicate to each other . To accomplish your requirement . Different Vlans need to communicate to each other . To make them communicate router is required to route tràffic between different Vlans .

Configure inter -Vlan routing in router

Create sub-interfaces in router with all required Vlans and connect one distribution switch with router configuration trunk link in switch allowing all vlan to pass between router and distribution switch , Further connect access switches to distribution switch access specific Vlan by configuring access-port .

After enable inter-Vlan routing in router all vlan in setup will talk to each other . Further upon your requirement Access-list (ACL) need to be configured on router accordinglly to control tràffic among VLANs .