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Networking Concepts. Needing more than a class C network

I need some theory or instructional help.
I've outgrown a class C network. Meaning I need more than 254 ip addresses in my LAN.
How should I in theory setup VLAN, routing, etc.

Say I have 2 floors each with 200 devices. How should I setup my network??? Here's my thinking let me know if I'm completely off or if it should be done a different way.

My thinking is 3 VLANs.
vlan 1 - for servers, firewall, etc say 10.1.1.0/24
vlan 2 - workstations on floor 1 10.1.2.0/24
vlan 3 - workstation on floor 2 10.1.3.0/24

Then my other question is how is the layer 3 switch configured???
Is the layer 3 switch the default gateway for all the devices and it then forwards to the firewall???

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that1guy15

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SOLUTION

ampranti

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pamiken

ASKER

In my L3 switch do I setup routes for the assigned vlan ip to forward to the firewall???

thanks for the advise so far.

that1guy15

You will want to set up routes for the each subnet/vlan to forward to the firewall. You can also set up a default route that forwards all traffic to the firewall if no other route pertains.

ampranti

If you have a L3 switch, it can do the intervlan routing. If not you can use a router or a firewall