User manual XC-32 XC-320 XC-4200
SYSTEM RADIUS AUTHENTIC <server node name | IP address>
In the same way, you can activate the accounting Radius client like this :
SYSTEM RADIUS ACCOUNTING <server node name | IP address>
TCP ports attributed to the Radius server are by default 1645, (authentication), and 1646,
(accounting). These two port numbers have been modified in the last two RFC about
RADIUS. These new values are 1812 and 1813. If your Radius server takes these new
numbers into account, modify them with the following commands :
SYSTEM RADIUS AUTHPORT <TCP port No. of authentic. server>
SYSTEM RADIUS ACCTPORT <TCP port No. of accounting server>
When Xcell emits a request to the Radius server, it waits no more than 3 seconds for the
server's answer. You can modify this duration with the commands :
SYSTEM RADIUS AUTHTIMEOUT <authentic. server request timeout>
SYSTEM RADIUS ACCTTIMEOUT <accounting server request timeout>
If Xcell has no answer at the end of the Time-Out, it repeats its request three times. You
can modify this number with the following command :
SYSTEM RADIUS AUTHRETRIES <authentic. server request retries>
SYSTEM RADIUS ACCTRETRIES <accounting server request retries>
The Radius protocol cyphers the passwords so that they do not appear clearly in the
requests IP frames. You must therefore necessarily specify the coding key (secret). It
must be the same as the one of the Radius server.
SYSTEM RADIUS SECRET "key"
XI.3 - DHCP
XI.3.1 - Definition
DHCP is a client-server protocol that aimed at a dynamical attribution of the IP addresses
to the machines of a network.
At the starting point, each network machine sends a request to the DHCP server and is
given an IP address. Xcell integrates a DHCP client that enables it to get an IP address
from a DHCP server.
A problem occurs at the networks interconnection: the DHCP requests are frames that do
not go through the routers. Consequently, for two connected networks to use the same
DHCP server, the router must play the part of a DHCP relay; that is to say that it must pick
the DHCP requests up and transmit them back to the DHCP server.
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