Rajesh-

Thank you... Its working just as expected now... Much appriciated...


-- 
Ryan Dorman, CCNP
Network Engineering Specialist
Millersville University
717.871.5883



On 5/23/06 3:04 PM, "Rajesh Nair (rajnair)" <[log in to unmask]> wrote:

> Ryan,
> 
> You are correct.  It is not possible to make the Airespace controller
> just forward the DHCP packets as it should (i.e. L2 broadcast).
> Instead, it relays the request (this is actually a violation of the DHCP
> RFC).  Hence, the CAS rejects the request (actually just drops it).
> 
> However, there is a workaround for this - create a IP reservation for
> the Airespace controllers MAC address in the appropriate IP range (i.e.
> your wireless VLAN(s)) on the CAS.  This will cause it to be treated as
> a trusted source and the requests will be handled.
> 
> -Rajesh.
> 
> -----Original Message-----
> From: Perfigo SecureSmart and CleanMachines Discussion List
> [mailto:[log in to unmask]] On Behalf Of Ryan Dorman
> Sent: Tuesday, May 23, 2006 11:57 AM
> To: [log in to unmask]
> Subject: Airespace + CCA
> 
> Hi everyone...
> 
> OK.. I'm new to Airespace so the way I'm thinking about doing this might
> be silly.. But here's the setup I can't get working:
> 
> Currently our wireless access is stand-alone IOS AP's with a broadcast
> SSID that goes to a VLAN that terminates in CCA.  CCA is providing DHCP
> and authentication for all wireless. It hands out /30 RFC1928 space to
> clients.
> 
> We have purchased a 4404 AP controller and some of the little LWAPP 1000
> series AP's and will eventually convert our 1130's and 1200's to LWAPP
> once I get this all working.
> 
> I want the wireless to function 99% of the way that it does now but just
> throw the controller in the middle for managemt of the Aps.  I'd prefer
> the DHCP and authentication continue to be handled by CCA.  I've trunked
> the wireless VLAn (601 in this case) and the Management VLAN to a port
> on the 4404.  I have LWAPP AP's successfully talking to it Via layer 2
> and 3 and I'm in the web GUI and all that fun stuff.
> 
> I created a dynamic interface on the 4404 that is in VLAN 601 and
> assigned it to physical port 1.  It wont let me create that interface
> without specifying an IP on it.  It seems that if I specify an IP on
> that it then uses that as a relay address and sends the DHCp request
> from a client onto CCA which then says "well I don't know about that
> network o I'm not giving you an IP."  I really wanted the 4404 to just
> pass the request along at a Layer 2 level and have CCA give back the IP
> and it would from there be just like any other CCA user.
> 
> Perhaps my above explanation makes sense.. Perhaps not.. But if there
> are any suggestion someone has I'd appreciate it. I read the
> "integrating Wireless Controllers and CCA" doc on the Cisco site but it
> doesn't seem to take into account using CCA for DHCP.
> 
> --
> Ryan Dorman, CCNP
> Network Engineering Specialist
> Millersville University
> 717.871.5883