According to the docs in-band is required for Wireless? We have four WiSM with about 600 AP's, CCA works fine but we have been having intermittent traffic issues that appear to be related to the WiSM, TAC case still open. Going along just fine then the traffic will drop to zero. We are NOT using the CAS for the DHCP with wireless. We have a CNR DHCP server inside the private VLAN with the AP's. The clients and the CAS are on the public network...

We are servicing around five thousand client machines in the Residence Halls, wired, using the CAS as the DHCP server. The only issue I see is functionality isn't as great as with the CNR DHCP server. Can't work with individual leases, at least not from the CCA GUI. An example would be a lease is given out without an expiration date. The only thing I can do is block it until the client releases it, then unblock it. CNR DHCP server can deactivate and force available which causes the client to take some action to continue to use the lease. Other than that CAS as DHCP server works quite well.

Hope that helps...  :-)

-----Original Message-----
From: Cisco Clean Access Users and Administrators [mailto:[log in to unmask]] On Behalf Of Nancy Watson
Sent: Tuesday, October 07, 2008 16:57
To: [log in to unmask]
Subject: Any issues using the CAS as the dhcp server

We are deploying the Cisco NAC, inband, real-ip gateway to replace our
Bluesocket solution for authentication.  The plan is to use the HA-CAS
as the dhcp servers and configuring upwards in the 100's of vlans on the
box for our LWAPP access points.

Does anyone know of any issues using the NAC servers as the dhcp server
versus an external dhcp server?  Is there issues with handling large
numbers of vlans?

We have  2 WiSM centrally located and will be moving to OOB and posture
assessment in the future.

Thanks,
Nancy

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Nancy Watson                    CNS Network Services
Sr. Network Engineer            352-273-1057
https://net-services.ufl.edu    352-392-5579 x167
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