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Edit VLAN Structure

I need to edit my vlan structure. My vlan for the guest wifi network is maxed out. We plan on adding a few hundred more devices on internal wifi network within the next two years so I can probably keep it as is.  Below is a table of how our vlan structure is currently setup. I have a suggestion below of how I'd like to set it up, but I'm not an expert so other suggestions are welcome.

I think I could probably leave the Internal Wifi as is and make the guest wireless as this:

Start and End IP: 10.55.12.0 - 10.55.15.255

Subnet: 255.255.252.0

How do I go about setting this up?

My Cisco Experience: I've inherited a network. I have never messed with editing a VLAN before. I can telnet into each switch so if I get some basic instructions I can probably get this working.

Cisco Equipment:

  • Catalyst 2960 switches (some POE).
  • Catalyst 4506 core switch
  • 4400 Wireless Controller
  • AIR-LAP1252AG-A-K9 Access Points

VLAN

Start IP

End IP

Subnet

Gateway

Total Addresses

In Use

Available

DHCP Lease Duration

Data

10.55.0.0

10.55.3.255

255.255.252.0

10.55.0.1

Phone

10.55.4.0

10.55.4.255

255.255.255.0

10.55.0.1

Management

10.55.5.0

10.55.5.255

255.255.255.0

10.55.0.1

Security

10.55.6.0

10.55.6.255

255.255.255.0

10.55.6.1

Wireless Guest

10.55.7.0

10.55.7.255

255.255.255.0

10.55.0.1

151

151

0

6hrs

Wireless

10.55.8.0

10.55.11.255

255.255.252.0

10.55.0.1

919

131

788

24hrs

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