Setting The Shared Key For Radius Packet Encryption; Setting The Maximum Number Of Radius Request Attempts - 3Com 3C13636 Configuration Manual

3Com Router 3000 Ethernet Family
Configuration Guide
Perform the following configuration in RADIUS view.
Table 2-18 Set the maximum number of real-time accounting request attempts
Set the maximum number of real-time
accounting request attempts.
Restore the default maximum number of
real-time accounting request attempts.
Set the connection timeout time on the RADIUS server to T, the real-time accounting
interval on NAS to t. Then, the retry-times of NAS is the rounded value of T divided by t.
So you should set T to a number that can be divided exactly by t.
By default, the maximum number of real-time accounting request attempts is 5.

2.3.4 Setting the Shared Key for RADIUS Packet Encryption

The RADIUS client (the router) and RADIUS server use the MD5 algorithm to encrypt
the exchanged packets between them. The two ends verify the packets using a shared
key. Only when the same key is used can they properly receive the packets and make
responses.
Perform the following configurations in RADIUS view.
Table 2-19 Set the shared key for RADIUS packet encryption
Set
authentication/authorization packet encryption.
Restore the default shared key for RADIUS
authentication/authorization packet encryption.
Set the shared key for RADIUS accounting packet
encryption.
Restore the default shared key for RADIUS
accounting packet encryption.
By default, the shared key huawei is used for RADIUS authentication/authorization and
accounting packet encryption.

2.3.5 Setting the Maximum Number of RADIUS Request Attempts

Since RADIUS uses UDP packets to carry data, the communication process is not
reliable. If the RADIUS server does not respond to the NAS before the response timer
times out, the NAS should retransmit the RADIUS request. After the number of
transmission attempts exceeds the specified retry-times, the NAS considers the
Operation
Operation
the shared key
3Com Corporation
Chapter 2 AAA and RADIUS/HWTACACS Protocol
retry realtime-accounting retry-times
undo retry realtime-accounting
for RADIUS
2-22
Configuration
Command
Command
key authentication string
undo key authentication
key accounting string
undo key accounting