IP printing on a remote printer

Hi all,

I'm trying to configure a printer on a "remote lan" which is connected to
our system via T1 connection.  We're using the 192.168... internal ip range,
the remote location is using the 10... ip range.
The remote users (10..) are connecting fine via CA Express, so the CFGTCP
stuff is OK.
I've got a remote printer set up, it'll go to SND mode, but never prints on
the other end.

Problem is in the routers, I believe.  Supportline says:
On both routers...ensure that ports 515 and 256 thru 1024 are OPEN, these
HAVE to be OPEN.

My remote folks say "I can't, and I won't, open the ports you listed....you
are asking me to open a hole the size of Europe in our router/firewall".
This is an affilate company, so we don't "own" them and can only be so
forceful.

Do I really need this many ports open or can I slim the required open ports
down to something they can accept.

Any advice is really appreciated.

TIA

AS/Resources, Inc.
William A.(Tony) Corbett
IBM Certified Specialist - AS/400 Developer
http://www.asresources.com
corbett@asresources.com
770-587-4812 (office)
678-935-5006 (mobile)
fax:  404-663-4737