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To limit the size of the IP address pool, use the following command:
Command> set pool Number
Note – If you decrease the number of addresses in the pool, you must reboot the
PortMaster for the change to take effect.
Setting the Reported IP Address
Some sites require a number of different PortMaster devices to appear as a single IP
address to other networks. You can set a reported address different from the Ether0 or
Ether1 address. For PPP connections, this address is reported to the outside and placed
in the PPP startup message during PPP negotiation. For SLIP connections, this address is
reported and placed in the SLIP startup message during SLIP startup.
To set a reported IP address, use the following command:
Command> set reported_ip Ipaddress
Configuring Named IP Pools
With the IP pool feature, you can set up multiple dynamically assigned address pools on
the PortMaster. Each IP pool contains four elements.
•
Name—a character string that uniquely identifies an IP pool. By identifying an IP
pool by name instead of by base IP address, you can use a single name for an entire
network system but assign different base IP addresses for each network access server
in the system.
•
IP address—the base IP address of a pool. When dynamically assigning addresses to
users, the PortMaster begins with the base address and increments up to the size of
the pool.
•
Netmask—the size of the address pool.
•
Gateway—the IP address of the pool gateway.
Note – Configuration information for IP pool is stored in the file /manager/ippools. If
you use the erase command to delete this file, you remove the entire IP pool.
The named IP pools feature introduces a new RADIUS attribute (193) that takes a string
corresponding to a name in the IP pool table. You must configure a user profile for
named IP pools through RADIUS. The PortMaster does not support IP pools in the local
user table.
This section describes how to set up named IP pools and includes the following topics:
•
"How PortMaster Address Assignment Works" on page 2-10
•
"Displaying Named IP Pool Information" on page 2-10
•
"Creating Named IP Pools" on page 2-10
•
"Creating a Default IP Pool" on page 2-11
•
"Resetting the IP Pool" on page 2-11
Configuring Global Settings
Setting the Reported IP Address
2-9
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Troubleshooting
