The Indy should mount the NAS share ideally, not the other way around. IRIX-based NFS requires that rpcbind is running, and that NFSv3 is specifically allowed. IRIX 5.3 though is very buggy, so it may not work with that version. I've used 6.2-6.5.30 successfully for both Solaris and FreeBSD-based NAS shares though.
For server config details, you can check this page:
https://wiki.irixnet.org/nfs
On IRIX, NFS mounts are done in the /etc/fstab file. Details are in techpubs manuals, one is here:
http://retrogeeks.org/sgi_bookshelves/SG...149-PARENT
If you need any specific help, please dump the network configuration (IPs, LANs, and information about your NAS) and we can help you troubleshoot it further.
I'm the system admin of this site. Private security technician, licensed locksmith, hack of a c developer and vintage computer enthusiast.
https://contrib.irixnet.org/raion/ -- contributions and pieces that I'm working on currently.
https://codeberg.org/SolusRaion -- Code repos I control
Technical problems should be sent my way.
