Cisco Cisco Clean Access 3.5

By reserving an IP address, you can keep a permanent association between a particular IP address and 
device. A reserved device is identified by MAC address. Therefore, before starting, you need to know 
the MAC address of the device for which you want to reserve an IP address. The configuration for a 
reserved IP does not include a maximum or default lease time. The address is always available for the 
device, and in effect has an unlimited lease time. 

 lists several rules that apply to reserved IP 

addresses. 

Go to Device Management > CCA Servers > Manage [CAS_IP] > Network > DHCP > Reserved 
IPs > New. 

In the MAC Address field, type the MAC address for the device for which you want to reserve an 
IP address, in hexadecimal MAC address format (e.g., 00:16:21:11:4D:67).

In the IP Address to allocate field, type the IP address that you want to reserve.

Within the address range of an IP pool.

A network or broadcast address.

Currently set as a default gateway for an 
existing IP address range. 

Within the address range of the Clean Access 
Server’s managed network (as configured in 
Device Management > CCA Servers > Manage 
[CAS_IP] > Network > IP), or managed subnets 
(as configured in Device Management > CCA 
Servers > Manage [CAS_IP] > Advanced > 
Managed Subnet). 

Reserved IPs tab

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