Description of problem: Currently, if you enable printer sharing under "Server settings", cupsd starts broadcasting IPP messages over port 631 on all available subnets. As there's no UI based mean to control/disable/etc these messages, the user is forced to manually edit the Browse line in the /etc/cupsd/cupsd.conf file. Version-Release number of selected component (if applicable): system-config-printer-0.7.40-1.fc6.x86_64 - Gilboa
Related to bug: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=220886
system-config-printer uses the CUPS admin API. Reported upstream; hopefully the API can be extended for this sort of thing.
Not something that will be fixed upstream until 1.3, where there will be a distinction between 'share locally' and 'share over the Internet'.
Any chance we'll see 1.3 in F7? It is supposed (...) to be released in 03/07. - Gilboa
Perhaps as an update. Not at release time.