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Configuring HWTACACS stop-accounting packet buffering
The device sends HWTACACS stop-accounting requests when it receives connection teardown
requests from hosts or connection teardown commands from an administrator. However, the device
might fail to receive a response for a stop-accounting request in a single transmission. Enable the
device to buffer HWTACACS stop-accounting requests that have not received responses from the
accounting server. The device will resend the requests until responses are received.
To limit the transmission times, set a maximum number of attempts that can be made for transmitting
individual HWTACACS stop-accounting requests. When the maximum attempts are made for a
request, the device discards the buffered request.
To configure HWTACACS stop-accounting packet buffering:
Step
1.
Enter system view.
2.
Enter HWTACACS scheme view.
3.
Enable buffering of HWTACACS
stop-accounting
which no responses have been
received.
4.
(Optional.) Set the maximum
number of transmission attempts
for
individual
stop-accounting requests.
Specifying the source IP address for outgoing HWTACACS
packets
About source IP address for outgoing HWTACACS packets
The source IP address of HWTACACS packets that a NAS sends must match the IP address of the
NAS configured on the HWTACACS server. An HWTACACS server identifies a NAS by IP address.
When the HWTACACS server receives a packet, it checks whether the source IP address of the
packet is the IP address of a managed NAS.
•
If it is the IP address of a managed NAS, the server processes the packet.
•
If it is not the IP address of a managed NAS, the server drops the packet.
To communicate with the HWTACACS server, the source address of outgoing HWTACACS packets
is typically the IP address of an egress interface on the NAS. However, in some situations, you must
change the source IP address. For example, when VRRP is configured for stateful failover, configure
the virtual IP of the uplink VRRP group as the source address.
Restrictions and guidelines for specifying the source IP address for outgoing HWTACACS
packets
As a best practice, specify a loopback interface address as the source IP address for outgoing
HWTACACS packets to avoid HWTACACS packet loss caused by physical port errors.
You can specify the source IP address for outgoing HWTACACS packets in HWTACACS scheme
view or in system view.
•
The IP address specified in HWTACACS scheme view applies to one HWTACACS scheme.
•
The IP address specified in system view applies to all HWTACACS schemes in which the
HWTACACS servers are in a VPN or the public network.
Command
system-view
hwtacacs scheme
hwtacacs-scheme-name
requests
to
stop-accounting-buffer enable
retry stop-accounting retries
HWTACACS
46
Remarks
N/A
N/A
By default, the buffering feature
is enabled.
The default setting is 100.
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Troubleshooting
