HPE FlexNetwork MSR Series Comware 5 Security Configuration Guide

34
Step Command Remarks
2. Specify a source IP address
for outgoing RADIUS
packets.
radius nas-ip
{ ip-address |
ipv6
ipv6-address }
[
vpn-instance
vpn-instance-name ]
By default, the IP address of the
outbound interface is used as the
source IP address.
To specify a source IP address for a specific RADIUS scheme:
Step Command Remarks
1. Enter system view.
system-view
N/A
2. Enter RADIUS scheme view.
radius scheme
radius-scheme-name
N/A
3. Specify a source IP address
for outgoing RADIUS
packets.
nas-ip
{ ip-address |
ipv6
ipv6-address }
By default, the IP address of the
outbound interface is used as the
source IP address.
Setting RADIUS timers
The device uses the following types of timers to control the communication with a RADIUS server:
• Server response timeout timer (response-timeout)—Defines the RADIUS request
retransmission interval. After sending a RADIUS request (authentication/authorization or
accounting request), the device starts the server response timeout timer. If the device receives
no response from the RADIUS server before the timer expires, it resends the request.
• Server quiet timer (quiet)—Defines the duration to keep an unreachable server in blocked
state. If one server is not reachable, the device changes the server's status to blocked, starts
this timer for the server, and tries to communicate with another server in active state. After the
server quiet timer expires, the device changes the status of the server back to active.
• Real-time accounting timer (realtime-accounting)—Defines the interval at which the device
sends real-time accounting packets to the RADIUS accounting server for online users. To
implement real-time accounting, the device must periodically send real-time accounting
packets to the accounting server for online users.
Follow these guidelines when you set RADIUS timers:
• For the same type of users, the maximum number of transmission attempts multiplied by the
RADIUS server response timeout period must be less than the client connection timeout time
and cannot exceed 75 seconds. Otherwise, stop-accounting messages cannot be buffered, and
the primary/secondary server switchover cannot take place. For example, the product of the
two parameters must be less than 10 seconds for voice users and less than 30 seconds for
Telnet users, because the client connection timeout period for voice users is 10 seconds and
that for Telnet users is 30 seconds.
• When you configure the maximum number of RADIUS packet transmission attempts and the
RADIUS server response timeout timer, consider the number of secondary servers. If the
retransmission process takes too long, the client connection in the access module might time
out while the device is trying to find an available server. For more information about the
maximum number of RADIUS packet transmission attempts, see "Setting the maximum number
o
f RADIUS request transmission attempts."
• When a number of secondary servers are configured, the client connections of access modules
that have a short client connection timeout period might still be timed out during initial
authentication or accounting, even if the packet transmission attempt limit and server response
timeout period are configured with small values. In this case, the next authentication or
accounting attempt can succeed because the device has set the status of the unreachable
servers to blocked so time for finding a reachable server is shortened.

HPE FlexNetwork MSR Series Specifications

General

Brand	HPE
Model	FlexNetwork MSR Series
Category	Network Router
Language	English