weird network issue

Hello,

I am experiencing a strange network issue and have not been able to 
resolve it. So, I am hoping someone may have some insight here to help 
spark a solution:

I am having an issue where I am unable to reach my servers both with 
normal web browsers (http) but also with an SSH shell and mail. However, 
the weird thing is that I can't reach them from my home office but I can 
from my downtown office. As well, there are several servers in my 
cabinet but only two are affected. I can, however, ssh into another 
server in the same cabinet and THEN ssh to these other two servers that 
I cannot reach from home if I shelled directly to them. My DNS is all 
fine and I can browse to sites not on my domain.

These are both RedHat boxes, one RH9 the other is RedHat ES3. Both run 
web servers and mail servers along with DNS. I wanted to think that it 
was my ISP for my home but why then could I get to other sites as well 
as all other machines but these two. Both run firewall scripts and the 
logs do not show anything unusual. The only clue might be that I have 
been updating my MailScanner/SpamAssassin/ClamAV apps as well as any out 
dated apps on the boxes. But I can get to them from anywhere but my home 
office.

Not sure where to go from here or what else to tell you all but anything 
you can think of might help.

Thanks

Dave
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