Cannot connect to a website from debian linux box

["Shaji N V" <nvshaji@hotmail.com>]

Hi,

I am facing a problem in connecting to a website from my linux box. I use 
dialup connection through my ISP or log on to my work(via dialup). The 
strange thing is that all machines at work are able to access the website 
(sun or windows), by my linux box cannot. If I boot the machine in windows, 
then I can connect to the website either thro work or ISP. The website is 
running https, so I try the following on the sun box:

$ ping dcu.fi1.net
..
ICMP Communication Administratively Prohibited from gateway 
vifi-gw.customer.ALTER.NET (157.130.98.254)
for icmp from bethsun02 (172.25.200.51) to dcu.fi1.NET (206.150.183.205)
..

If I do the same thing, from my linux box, it just does not respond.
Now if I run "telnet dcu.fi1.net 443" on sun box, it connects. If I run the 
same thing on linux box, it does not.

I am running Linux 2.4.3 (Linux home 2.4.3-686 #1 Mon Apr 16 10:25:24 EST 
2001 i686 unknown) - Debian testing/unstable.

Any help is greatly appreciated.

Thanks,
Shaji
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