PaperCut DNS setup with FortiGate

[hun]

Dear community,

Does anybody here uses PaperCut?

We have a FG-80F, recently segmented our network and use our FG as DHCP/DNS server for our wireless clients.

We want to implement the DNS settings requiered for PaperCut wireless printing since clients and server are in different vlans and subnets (https://www.papercut.com/kb/Main/MobilityPrintDNSRecordExamples/)

dnscmd /RecordAdd domain.com b._dns-sd._udp PTR pc-printer-discovery.domain.com
dnscmd /RecordAdd domain.com lb._dns-sd._udp PTR pc-printer-discovery.domain.com
dnscmd /RecordAdd domain.com pc-mobility-print-host A 10.10.90.65
dnscmd /RecordAdd domain.com pc-printer-discovery NS pc-mobility-print-host.domain.com

However the instructions are only for Windows and I have trouble implementing those to the FG interface. 

E.g. when creating a PTR record the FG still wants an IP address. 

Thank you for any helpful hints.

[pminarik]

The FortiGate local DNS database only supports creating the most usual type of PTR record - for reverse DNS resolution of IP to domain name. Domain to domain PTR records are permitted in general DNS, but the FortiGate configuration allows only IP->domain name to be configured, hostname->hostname are not permitted as PTR, only as a CNAME (not clear if the printers/clients would accept that?).