I am a moron; I can't figure it out.

How do you make a cisco so that you can rsh into it (to use Mr. Kerns
looking glass)?

ip rcmd rsh-enable
ip rcmd remote-host name1 name2

Looking at the source for the looking-glass though it doesn't use the
username option for rsh command. When useing the cisco command below
don't you have to use the rsh username?

ip rcmd remote-host www nobody

I changed the ip of the $ROUTER in lg.pl to
  "www\@ipaddress.of.router" instead of "ipaddress.of.router"
which seems to work. I kept getting Permission Denied without it.