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Issue IPs to wireless devices from my Server rather than the SOHO

How to setup a wifi network with SOHO router plugged into switch and get IPs issued from DC hosting DHCP server so wireless devices can communicate with wired devices?

I have a Server running Server 2012 R2 that provides DHCP services to the devices wired directly to our switch. If I have the WIFI SOHO plugged into the switch to get an IP on the same VLAN as the wired devices how can I direct my wireless devices to point to the DHCP server to receive the IPs rather than the wifi router providing this service?

Cisco 2811 Router
Cisco 3560 Switch
Windows Server 2012 r2 DC with DHCP server
VLAN 10
WIFI Router Plugged into switch on VLAN 10

SOLUTION

CompProbSolv

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Brandon Mac

ASKER

The device can possibly be configured as an access point but it is a wifi SOHO with DHCP built in and it issues IPs. It has 1 WAN and 4 LAN ports. I have it currently plugged into WAN port and plugged into VLAN 10 it receives an IP and then by default the configs setup another network and the WIFI router issues IPs for those devices connecting. Example below

WIFI plugged into switch on WAN port VLAN 10 gets IP of 10.1.1.101 /24 and then its network that it hosts is
192.168.1.1 /24 and it will issue ips to devices on its own network.

So if I can't change it into an access point what are the steps required ? If i can make it an access point are there different steps ?

Thanks for your assistance

John

I have it currently plugged into WAN port and plugged into VLAN 10

Plug a LAN port form this device to your network and turn DHCP OFF. Then devices will get DHCP from your network.

Brandon Mac

ASKER

So John your saying don't use the WAN port ?

ASKER CERTIFIED SOLUTION

John

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Brandon Mac

ASKER

So what If i were to put the SOHO on VLAN 12 instead and ensure that the router knew the routes to both VLAN could the WIFI and Wired still communicate but be separated by being on a different subnet ?

John

Yes that should work as well.

Brandon Mac

ASKER

I'm trying to bring the communication of the 2 separate networks together but was wondering for security if I should isolate to separate vlans but it will still allow them to see one another and communicate right

John

If the devices need security like that, yes. Otherwise keep on the main network.

I do the latter because we have wireless devices properly on the main network.

CompProbSolv

John is on the right track. Set the LAN address with something compatible with the subnet of the LAN on the main router. Turn off DHCP on the Access Point/Router. Connect it to the main LAN with a cable from a LAN port. Nothing should be connected to the WAN port.

noci

but it is a wifi SOHO

SOHO meaning Small Office Home Office .... this makes no sense at all...
if you meant "but it is a wifi SOHO router" it does... SOHO is a prefix for all kinds of equipment (printers, fax, scanner, router, ..._)
(or a rough neighbourhood in London ....)
First Q: do you have a SINGLE LAN network - if so not a lot of trouble... just disable DHCP on the router and enable on your server.

If you have a Multi (V)LAN network there may be a problem. The router will need to be able to supprto DHCP -relay or DHCP-helper.

Any Wifi router can be used as AP on a LAN (most configs) have the Wifi connected to the LAN. So just connecting the LAN port to the network and disable DHCP on the router should work. (and enable DHCP n your server).

Brandon Mac

ASKER

Thanks John you put me on the right track got it all figured out.

Brandon Mac

ASKER

Great help from the both of you thanks

John

You are very welcome and I was pleased to assist you.