topic AP 1242AG passing DHCP requests in Wireless

AP 1242AG passing DHCP requests

jhbrubaker — Sun, 04 Jul 2021 01:52:44 GMT

I have 2 1242AG APs setup with one SSID and no vlans configured. The APs are connected to a switch along with my DHCP server. Clients are able to connect to the SSID but are unable to get an IP from the server. Clients can plug into the switch and get an IP. If I configure a static IP on the wireless card, the client works fine.

Is there something I'm missing on the AP to allow DHCP requests to pass through? IPhelper?

Here is the AP info:

AIR-AP1242AG-A-K9
12.4(21a)JA1

Thanks.

John

Re: AP 1242AG passing DHCP requests

Leo Laohoo — Fri, 11 Jun 2010 22:02:14 GMT

I have 2 1242AG APs setup with one SSID and no vlans configured.

Yes you "have". By default it's VLAN 1.

The APs are connected to a switch along with my DHCP server.

Right-o. Is the link from the AP to switch configured as a dot1q Trunk?

Re: AP 1242AG passing DHCP requests

jhbrubaker — Fri, 11 Jun 2010 22:56:40 GMT

It is connected to a Cisco Small Business Pro ESW-540 switch. All ports are configured for Trunk mode and dot1q from what I can see.

Re: AP 1242AG passing DHCP requests

Leo Laohoo — Sat, 12 Jun 2010 00:15:03 GMT

Can you post your config of both?

Re: AP 1242AG passing DHCP requests

Elliott Shawd — Wed, 16 Jun 2010 16:33:43 GMT

Are you able to reach the internet when you statically configure an ip?

Re: AP 1242AG passing DHCP requests

jhbrubaker — Wed, 16 Jun 2010 18:35:34 GMT

Yes. With a static IP, WiFi users are perfectly fine.

I went through the port wizard on the switch state that APs are connected. Waiting for staff at that location to test again.

Re: AP 1242AG passing DHCP requests

Alan Cipriano — Sun, 07 Apr 2013 08:37:34 GMT

Hello,

Please, any fix to issue?

Thx

Alan

Re: AP 1242AG passing DHCP requests

smayanja123 — Mon, 08 Apr 2013 20:58:53 GMT

If you did not configure any vlans then configure the ports to be access ports not Trunks.
#sw access
#sw access vlan 1
#no shut

That will do it

Sam

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