Cisco Cisco Clean Access 3.5
5-6
Cisco Clean Access Server Installation and Administration Guide
OL-7045-01
Chapter 5 Configuring DHCP
Configuring IP Ranges (IP Address Pools)
shows the addressing for an automatically-generated IP range of four /30 subnets starting at
address 10.1.100.12.
In general, the admin console enforces rules for properly configured subnets. If you attempt to use an
invalid network address for the netmask, the message appears: “Subnet/Netmask pair do not match”. In
this case, choose a new value for the address.
invalid network address for the netmask, the message appears: “Subnet/Netmask pair do not match”. In
this case, choose a new value for the address.
Create IP Pools Manually
To create an IP pool manually, you also need to define the subnet in which the pool resides. There are
three ways to arrive at the subnet address and netmask values for a manually generated pool:
three ways to arrive at the subnet address and netmask values for a manually generated pool:
•
Enter the subnet address directly, as an IP address and netmask.
•
Have the admin console generate the smallest possible subnet based on the IP range you enter.
•
Have the admin console calculate the values from the list of subnets currently managed by the Clean
Access Server.
Access Server.
To create an IP pool range:
1.
In the DHCP form, click the Subnet List tab, then the New link.
Figure 5-3
New Subnet List Subtab Link
2.
The new IP pool form appears.
Table 5-2
Auto-Generated Subnets
IP Range Entries
1st Subnet
2nd Subnet
3rd Subnet
4th Subnet
Network address
10.1.100.12
10.1.100.16
10.1.100.20
10.1.100.24
Router address
10.1.100.13
10.1.100.17
10.1.100.21
10.1.100.25
Client address range
10.1.100.14 -
10.1.100.14
10.1.100.14
10.1.100.18 -
10.1.100.18
10.1.100.18
10.1.100.22 -
10.1.100.22
10.1.100.22
10.1.100.26 -
10.1.100.26
10.1.100.26
Broadcast address
10.1.100.15
10.1.100.19
10.1.100.23
10.1.100.27
New subtab
link
link