I do read from some tech note. The iprint using http:xxxx:631 can also

accept nds user auth if the security is set up medium (default).

Where can I set the nds user auth, I launch the iprint client and also

check the printer properties from the printer in the control panel,
of them can set the user info. when I start to print to the ipp
it print successfully without any user auth with medium setting of
security. seems like anyone can print to my printer from internet,

I didn't reserve the 443 port for security printing when I install the

nw6. Anyway I can add it back now?