CUPS client problem

[Nicolas de Sereville <deserevi@ipno.in2p3.fr>]

Hello,

I have a new laptop (Dell D620, with etch freshly installed) from my new 
job and I am trying to print using CUPS. The situation is the following, 
at work there are two different networks: xxx.xxx.10.xxx (let's call it 
'internal') and xxx.xxx.20.xxx (let's call it 'external'). The cups 
print server is a machine on the internal network and my laptop is 
connected on the external network. I am not seeing any printers whereas 
when my laptop was on the internal network CUPS could detect 
automatically all the available printers. Do you have any idea of what I 
am missing?

I tried to add the name of the CUPS server in /etc/cups/client.conf but 
then when I go to "Desktop/Administration/Printings" I obtain the 
message: "The CUPS server could not be contacted"

Any help would be welcomed,
Cheers,
Nicolas