HP 5920 Series - Page 40

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You can specify a source IP address for outgoing RADIUS packets in RADIUS scheme view for a specific
RADIUS scheme, or in system view for all RADIUS schemes whose servers are in a VPN or the public
network.
Before sending a RADIUS packet, the NAS selects a source IP address in the following order:
1. The source IP address specified for the RADIUS scheme.
2. The source IP address specified in system view for the VPN or public network, depending on where
the RADIUS server resides.
3. The IP address of the outbound interface specified by the route.
To specify a source IP address for all RADIUS schemes in a VPN or the public network:
Ste
p
Command Remarks
1. Enter system view.
system-view
N/A
2. Specify a source IP address
for outgoing RADIUS packets.
radius nas-ip { ipv4-address | ipv6
ipv6-address } [ vpn-instance
vpn-instance-name ]
By default, the IP address of the
RADIUS packet outbound interface
is used as the source IP address.
To specify a source IP address for a specific RADIUS scheme:
Ste
p
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 { ipv4-address | ipv6
ipv6-address }
By default, the source IP address
specified by the radius nas-ip
command in system view is used. If
the source IP address is not
specified, the IP address of the
outbound interface is used.
Setting RADIUS timers
The device uses the following types of timers to control communication with a RADIUS server:
• Server response timeout timer (response-timeout)—Defines the RADIUS request retransmission
interval. The timer starts immediately after a RADIUS request is sent. If the device does not receive
a 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.
When you set RADIUS timers, follow these guidelines:
• 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 much time, the client connection in the access module such as the
Telnet module might time out while the device is trying to find an available server.