I have been working the issue where a handful of web sites are either being
incredibly slow to get to or not at all available e.g. ebgames.com,
connexion.oclc.org, yellowpages.superpages.com.

 

All of our ip addresses NAT to 65.220.79.5 on the way out of the firewall.
I have discovered that If I create a static NAT mapping from my machine on
our network to 65.220.79.81 outbound then the problem goes away.  
 

Also I have noticed that I am not totally denied.  I can ping these sites
and even connect via a telnet session on port 80.  It appears to be just
incredibly slow to these sites when I am using 65.220.79.5 as my NATTed
address.

 

I called CP and they could not come up with anything.  Basically these
sites, or some device between us on these sites, does not like the source IP
of 65.220.79.5.  The only thing I can think of is that we have been Black
listed and some reverse-proxy service or something does not like .5 and is
choking us off.  

 

Does anybody have any other insight?

 

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