1-49key string is not configured here, the shared key configured in the key command in RADIUSscheme view will be used.z The IP addresses of the primary and secondary authentication/authorization servers cannot be thesame. Otherwise, the configuration fails.Related commands: key, radius scheme, state.Examples# Set the IP address and UDP port number of the primary authentication/authorization server forRADIUS scheme radius1 to 10.110.1.1 and 1812 respectively. system-viewSystem View: return to User View with Ctrl+Z.[Sysname] radius scheme radius1New Radius scheme[Sysname-radius-radius1] primary authentication 10.110.1.1 1812# Specify the IPv6 address of the primary authentication/authorization server for RADIUS schemeradius1 as 1:1::2:3 and the UDP port of the server as 1812. system-view[Sysname] radius scheme radius1[Sysname-radius-radius1] primary authentication ipv6 1:1::2:3 1812radius clientSyntaxradius client enableundo radius clientViewSystem viewParametersNoneDescriptionUse the radius client enable command to enable RADIUS authentication and accounting ports.Use the undo radius client command to disable RADIUS authentication and accounting ports.By default, RADIUS authentication and accounting ports are enabled.If you want to use the switch as a RADIUS client, you need to ensure that the ports for RADIUSauthentication and accounting are open. Otherwise, you can disable the ports to improve security of theswitch.Related commands: radius scheme.