I'm using amd64 Current, (8.99.34), which I use as a desktop machine as well as an NFS file server. When I scan the ports, I see the ones I expect, sun rpc, (111), and nfsd, (2049), but I also see 1021 - 1023 as listening ports.
When I look these up on IANA, they are mentioned as experimental. I don't know what launches these listening ports, but I suspect nfs. Can someone reassure me with their wisdom that these are necessary, or not.