It is necessary for Xshell to recognize the server user name/password prompt in order to automate the login process for the TELNET or RLOGIN protocol. In general, the default value is used.
TELNET
Enter the user name and password prompt to automate TELNET login process. Note that blanks are recognized as valid characters.
RLOGIN
Enter the password prompt for RLOGIN protocol. A password may not be needed depending on the RLOGIN server settings. Note that blanks are recognized as valid characters.