I have a project coming up where we will be setting up our network to utilize VLANs, and would like to get some advice and or recommendations on how to set this up correctly. First I will describe our network and then I will try to describe what we want to accomplish. Hopefully, someone has done it before and can shed some light on what I need to do.
Currently we have a basic network consisting of two physical segments, 10.10.4.0 /22 and 10.10.8.0/22. Between both segments we have about 55 Cisco switches (3550 and 2950) one of these switches is being used as a default Gateway for both segments. We also have two other Routers, but they are managed by our parent company. We also have two ISP connections, one for segment 1 and the other for segment 2 we setup the default gateway with PBR to send wan traffic to the WAN 1 Router and internet traffic to one of the firewalls depending on what segment the traffic is coming from. Every port on either segment is using the Default VLAN1, this is what we want to Change.
What we want to do is subnet both segments and starts using VLANs. Eventually we would like to have one segment broken up by VLAN?s instead of what we currently have which is 2 segments split by a router. For starters, in each segment we would like to have a separate vlan for servers, conference rooms, wireless, DMZ, and departments, so a total of about 8 vlans in each segment. We would also like to subnet without affecting our parent companies routers routing table.
I have attached a diagram of our network. From looking at the diagram, would it be a good Idea to create the VLANs on the switch that we are using as the gateway? I would appreciate any advice and recommendations, hope I described everything well, if not let me know.