Re: SUN RPC portmapper

["Steven M. Bellovin" <smb () research att com>]

In message <doug-980922081600.A2311682 () netman eng auburn edu>, Doug Hughes writ
es:
> > Does anyone know a range of TCP  ports the the SUN RPC portmapper uses which
> > given a request through UDP port 111?
> > jsadofsky () metropo mccneb edu
>
> There really isn't as far as I know. Some services are relatively fixed
> (e.g. NFS - 2049, network lock manager 4045), but the rest are mostly
> randomly assigned at ports above 32768. When your server registers with
> rpcbind/portmap, portmap assigns it a port. Then, when a client requests
> an RPC service, it contacts portmap/rpcbind to resolve the RPC number
> to a port and protocol (udp,tcp,tli, whatever)

It's been a few years since I looked at the code, but as I recall applications
bind to their own ports and simply notify the portmapper what they're using.