troubleshooting Question

DHCP Broadcasts across WAN

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dswope79Flag for United States of America asked on
RoutersDHCPNetwork Architecture
4 Comments1 Solution1445 ViewsLast Modified:
I am bringing up a new WLAN environment and all site LWAP's will receive their DHCP address from the main site that houses the WLAN controllers. I have setup a /24 for the controllers and the LWAP's.

I need some verification and or advice on how I can ensure when a new AP is plugged in that it's DHCP broadcast is sent over the WAN link to the DHCP server here. Seeing as how Routers break up broadcast domains that is a problem, but we have ip helper-address for this.

As it is now, I can ping across the WAN link to the /24 and DHCP server. Now if I create a new vlan interface on the core switch at the other location and set the ip helper-address on it, ping dies and I can no longer reach the /24

I somehow need this because once I start plugging in AP's and trunking ports to the native /24 vlan in question they will need to know how to reach their intended DHCP server.

I am somehow missing something
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