XManager not able to connect to Solari [1]

I have xmanager 1.3.9, I need a small help. We have solaris 8 servers hosted on the internet & is currently behind the firewalls.
I have opened the following ports on the firewall


External To Internal (From Internet towards Server)

TCP 6000-6010, TCP 16001

Internal to External (From Server to Internet)

UDP 177, TCP 512, TCP 513, TCP 514, TCP 23, TCP 22.
I wanted to access my Solaris Server sitting in my office Pc which is loaded with XManager software.

When I try to connected xmanager over the public IP I get an error "XDMCP Failed & pls make sure host is ready". While referring knowledge base I have found that I need to enable to CDE Login should be enabled, even I did this by giving the following command at the root
/usr/dtconfig -e
/usr/dtconfig -reset

Even then I couldnot able to connect to solaris server.
Though Xmanager works fine if I connect from the same lan but I want to access these solaris server sitting in my office.
Pls advice is there any other port which I need to open apart from the above one or is there any addition setting needs to be done on Salaris Server.
Pls help
Thanks & Regards

Xmanager is a PC X server. This means your remote server must make a connection back to your PC. According to your email, you have configured it the other way around. Please configure your firewall as following:

From PC to the remote server: UDP 177, TCP 512, 513, 514, 23, 22 for Xstart, TCP 7100 for font server
From the remote server to PC: TCP 6000~6010

If your problem persists, please send us the Xmanager log file. It is located in C:\Program Files\Xmanager1.3.9\Xmanager.log.

Also, if you have purchased Xmanager 1.3.9 between January, 2003 and July 19, 2004, you are eligible for a free upgrade. Please go to our download page and download our latest Xmanager, and then install it using your Xmanager 1.3.9 product key.

Download page: /download/main.html

Please let us know if we can be of further assistance

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Technical Support