I am trying to change our configuration with these steps. However, I might be missing additional things that need to be done and I have little knowledge of VLANs, configuring managed switches, and especially having 2 subnets. We are currently running out of IPs on our 192.168.1.x network for data and I wanted to setup a VLAN for VoIP phones that will be added. I also need to get more IPs for data though.
Also, what we are doing here is connecting to a new building in our backyard that we purchased. The building is connected via fiber and Dell switches are on each floor. We also have an Iwatsu phone system in each building which gives us an IP campus scenario. The new building will be VoIP and digital phone mixed and the old building is just digital.
Ok, here are my thoughts...
1) Adding a new second subnet (a 192.168.2.x) network (we are currently using 192.168.1.x for data)
2) VLAN the Dell switches to work with our current subnet and a new subnet (switches are connect via fiber modules and are Dell PowerConnect 24-port managed switches and 1 Dell PoE switch for IP phones)
3) Have our new IP phones run on the new 192.168.2.x subnet and connect them into the Dell PoE switch
4) Understand what the heck we are doing and what needs to be done to our Watchguard Firebox x500 gateway/firewall, if additional NIC cards are needed, and changes that need to be made on our Windows 2003 DHCP server. (we are in an all Windows 2003 Server environment).
Any help is appreciated