Using class to match iPhones, Wiis etc

Peter Laws plaws at
Fri May 8 13:48:14 UTC 2009

Randall C Grimshaw wrote:
> I will make a guess that it might be possible to set a QOS (cos) (dscp) priority on the dhcp traffic. Have you asked Cisco?
> Classifying the clients in DHCP isn't going to solve a load issue at the firewall.

Not directly, but if we can give the hosts that sit in one place (i.e. 
laptops) longer leases, it cuts down traffic that has to pass through.

Thanks for the hint on QOS.

This seems to be a limitation in how many DHCPREQUESTs can be outstanding 
at any given instant.

Peter Laws / N5UWY
National Weather Center / Network Operations Center
University of Oklahoma Information Technology
plaws at
Feedback? Contact my director, Craig Cochell, craigc at Thank you!

More information about the dhcp-users mailing list