3com 5500-ei pwr Installation Instruction

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Configuring TACACS Accounting Servers 
Follow these steps to configure TACACS accounting servers: 
To do… 
Use the command… 
Remarks 
Enter system view 
system-view 
— 
Create a HWTACACS scheme 
and enter its view 
hwtacacs scheme 
hwtacacs-scheme-name 
Required 
By default, no HWTACACS 
scheme exists. 
Set the IP address and port 
number of the primary 
TACACS accounting server 
primary accounting 
ip-address [ port ] 
Required 
By default, the IP address of 
the primary accounting server 
is 0.0.0.0, and the port number 
is 0. 
Set the IP address and port 
number of the secondary 
TACACS accounting server 
secondary accounting 
ip-address [ port ] 
Required 
By default, the IP address of 
the secondary accounting 
server is 0.0.0.0, and the port 
number is 0. 
Enable the stop-accounting 
message retransmission 
function and set the maximum 
number of transmission 
attempts of a buffered 
stop-accounting message 
retry stop-accounting 
retry-times 
Optional 
By default, the stop-accounting 
messages retransmission 
function is enabled and the 
system can transmit a buffered 
stop-accounting request for 
100 times. 
 
 
You are not allowed to configure the same IP address for both primary and secondary accounting 
servers. If you do this, the system will prompt that the configuration fails. 
You can remove a server only when it is not used by any active TCP connection for sending 
accounting messages. 
 
Configuring Shared Keys for HWTACACS Messages 
When using a TACACS server as an AAA server, you can set a key to improve the communication 
security between the switch and the TACACS server. 
The TACACS client and server adopt MD5 algorithm to encrypt HWTACACS messages before they are 
exchanged between the two parties. The two parties verify the validity of the HWTACACS messages 
received from each other by using the shared keys that have been set on them, and can accept and 
respond to the messages only when both parties have the same shared key. 
Follow these steps to configure shared keys for HWTACACS messages: 
To do… 
Use the command… 
Remarks 
Enter system view 
system-view 
—