07-30-2007 09:51 AM - edited 07-03-2021 02:25 PM
I have recently installed Aironet 1131 AG wireless routers.
I want the router to give out DHCP leases. I have the FA0 on the 110. I have the dot11 on a 120 network. I set up the router to give out leases on the 120 but it keeps giving them on the 110. What am I doing wrong? Thanks.
07-30-2007 12:07 PM
Do you have the correct ip-helper address in place? Can you post your router config.
HTH,
hieu
07-31-2007 08:42 AM
Even though all of the VLANs are on one device, they are logically separate.
The AP / system will only provide DHCP services on the native VLAN.
To get the addresses to other VLANs, you must also have some kind of Layer 3 device (router / L3 Switch), and an "IP Helper" address set up on the inbound (client side) interface for that VLAN.
So, if you had a router connected and set up for 802.1q trunking, and two logical interfaces fa0/0.110 and fa0/0.120 (110 being the native or management VLAN), you need to go to the fa0/0.120 interface and add "IP HELPER
"HTH
Good Luck
Scott
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