connect behind from firewall

[szerdahelyi.mihaly@ln.matav.hu]

Hi,
we would like to connect Win2k to Linux with cygwin; it works without
problems when both machines are behind a company firewall but it does not
work on this line: Win2k->comp.firewall->net->private router->private Linux
server(same as in the first example). Unfortunately (but it is maybe good)
we have not enough information about the firewall because of the policy. We
can configure the end-machines and the private router. We could not find
any ideas in FAQ's. Have you any idea what could we continue with?
I send it in different mode because of the slightly confidential
information.
Thanks
Michael Szerdahelyi