Quotes in the secret are not allowed. 
<server_port>   : Server UDP port. Use 0 to use the default RADIUS port (1812) 
 
Example:   
  Set RADIUS authentication server configuration. 
-8P-2S:/>security aaa radius 1 enable 192.168.0.20 12345678 1812 
 
 
Security AAA ACCT_RADIUS 
Description: 
Set or show RADIUS accounting server setup. 
 
Syntax: 
Security AAA ACCT_RADIUS [<server_index>] [enable|disable] [<ip_addr_string>] [<secret>] 
[<server_port>] 
 
Parameters: 
The server index (1-5) 
(default: Show RADIUS accounting server configuration) 
enable       : Enable RADIUS accounting server 
disable  : Disable RADIUS accounting server 
(default: Show RADIUS server mode) 
<ip_addr_string>: IP host address (a.b.c.d) or a host name string 
<secret>     : Secret shared with external accounting server. 
   To set an empty secret, use two quotes (""). 
   To use spaces in secret, enquote the secret. 
   Quotes in the secret are not allowed. 
<server_port>   : Server UDP port. Use 0 to use the default RADIUS port (1813) 
 
Example:   
  Set RADIUS accounting server configuration. 
-8P-2S:/>security acct_radius 1 enable 192.168.0.20 12345678 1813 
 
 
Security AAA TACACS+ 
Description: 
Set or show TACACS+ authentication server setup.