The client command is used to define which clients are permitted to connect to the configured XMCP port. Unauthenticated clients, if permitted, provide limited functionality to subscribe and query some services, but are unable to access restricted services and are prevented from publishing services of their own. Authenticated clients use a specific username and password as authentication credentials and have full access to the service-routing network.
A maximum of five unauthenticated connections from a single source IP address are allowed.
Once a username and password are defined, the password associated with this username can only be changed by using the no client username command.
When configuring authenticated clients, you typically do not enter an encryption type. You enter an encryption type only if you copy and paste this command from another Cisco router configuration command.
You can enable password encryption with the password encryption aes command. After you enter this command, all existing clear-text client passwords are converted to use type 6 encryption. Once a password is encrypted, it will remain encrypted even after you configure the no password encryption aes command.