Le 26/02/2018 à 05:35, Gordon Messmer a écrit : > On 02/25/2018 10:42 AM, François Patte wrote: >> I opened firefox on one computer and miracle: the printer attached to >> the other computer is discovered and cups admin interface asks me if I >> want to add this printer. Nice: the job is easy!!*But* this does not >> work at all!! > > > If I recall correctly, discovery is a matter of multicast DNS > announcement. Since the source announces the printer, firewall rules > don't need to be adjusted to allow that. However, you do need to adjust > firewall rules to allow incoming IPP connections. Have you done that? iptables -L Chain INPUT ACCEPT tcp -- anywhere anywhere tcp dpt:ipp ACCEPT tcp -- anywhere anywhere tcp spt:ipp ACCEPT udp -- anywhere anywhere udp dpt:ipp ACCEPT udp -- anywhere anywhere udp spt:ipp Chain OUTPUT ACCEPT tcp -- anywhere anywhere tcp spt:ipp ACCEPT tcp -- anywhere anywhere tcp dpt:ipp ACCEPT udp -- anywhere anywhere udp spt:ipp ACCEPT udp -- anywhere anywhere udp dpt:ipp -- François Patte UFR de mathématiques et informatique Laboratoire CNRS MAP5, UMR 8145 Université Paris Descartes 45, rue des Saints Pères F-75270 Paris Cedex 06 Tél. +33 (0)6 7892 5822 http://www.math-info.univ-paris5.fr/~patte
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