Your CUPS client is not picking up the CUPS server on your foobar box.
Your CUPS server should be configured to allow clients to see the server and connect to it - add the line
Code:
BrowseAllow 192.168.0.*
to /etc/cups/cupsd.conf on the
server.
To make sure that the client sees the server, you could also opt for setting the
ServerName
to the hostname of your CUPS server, in your
client's /etc/cups/client.conf file.
Eric