On 8/23/20 10:52 AM, Neal Becker wrote:
> If I stop firewall (systemctl stop iptables) I can communicate with the printer.  If I restart the firewall I get "unable to locate printer".
> My printer is
> dnssd://Brother%20HL-L2395DW%20series._ipp._tcp.local/?uuid=e3248000-80ce-11db-8000-3c2af4436b47
>
> Any ideas?

if you want _discovery_ to work, open the discovery ports in your firewall for your LAN

        https://www.cups.org/doc/firewalls.html

since you appear to be using ipp/tcp, that'd be

        631 (IPP/IPPS)

for cups browsing.

do NOT open access to _external_ networks.

generally useful read here:

        https://en.opensuse.org/SDB:CUPS_and_SANE_Firewall_settings

if you just want to _access_ your printer at a known/fixed IP, set it up manually

        https://www.cups.org/doc/network.html
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