[Icecast] Setting UP a Simple Relay

[Steve Matzura]

The documentation at 
https://icecast.org/docs/icecast-latest/relaying.html is very clear. I 
want to set up a one-time relay which will pull a program from a stream 
and relay it to the input port of a stream I already have running. What 
are the minimum requirements I'll need to set up the output side of this 
relay, above and beyond the obvious things like IP address and access 
credentials? Would it be reasonable to just clip out a copy of the top 
part of my existing icecast.xml, change a couple key things, like 
logfile name and temporary directory name, etc., and have a reasonable 
expectation of it working?