Using WIndows 2012 DHCP to offer IPs to GS748T3 VLANs

[kirkie748]

Hi guys

I am trying to setup a VLAN for my WAP's and they should be giving a different IP subnet to the rest of my network. I have a Fortigate 30E Firewall, and a Netgear GS748TV3 switch, and DHCP is enabled in my Windows 2012 Server. My normal network is 10.7.1.0/24. Can I set up my Wireless devices to receive IP's in the range of 10.7.2.0/24? I more or less understand how to set the VLAN's up on the switch; the part I need help with is how my Windows 2012 Server will know which IP'ranges to give to who. At the moment I only have one DHCP scope setup 10.7.1.0/24

Could someone please assist in setting DHCP for the new scope based on the VLAN settings in the switch? 

Thanks

Kirk

[schumaku]

On the bigger Managed Switches there are L2/L3 DHCP Helpers or DHCP Relay available, with these configured a new DHCP scope would be sufficient.

Without a DHCP Relay, you have to bring up an interface of the Windows server to each VLAN. 

[kirkie748]

Thanks very much. What do you have to do to achieve that? Do you need more than one DHCP server for each VLAN?

[Nodism1125]

Hi Kirkie748, 

First, you need to create a DHCP scope for VLAN 4 in the Windows 2012 server. 

Example. VLAN 4 - 192.168.4.1/24 (192.168.4.2-192.168.4.250)

Second, create a VLAN 4 in the switch GUI

Third, Tagged the uplink ports,

Example. Switch port 1 - Windows Server and Access Point- Tagged the ports to pass the VLAN4 traffic. 

Four, Make sure you add the VLAN ID 4 to the Wireless profile. 

Any wireless will receive an IP address to VLAN 4 network.