FYI every single firewall vendor has a different name for the feature
you mention.

Cisco calls it NAT hairpin.

https://supportforums.cisco.com/thread/1003238

On 12/31/2010 5:22 PM, Brian Desmond wrote:
> *Bob if I had to guess the issue is that they are looping through the
> router. As a repro, do this:*
> 
> * *
> 
> *NAT your computer on IP 1. NAT something (like IIS) on IP2. Try to
> connect to http://IP2 from computer 2. *
> 
> * *
> 
> *IIRC there is a way around this but I honestly can’t remember the
> solution. It’s been years since I did this. You may need to either a)
> try a static route or b) do some searching on loopback. *
-- 

Phil Brutsche
p...@optimumdata.com

~ Finally, powerful endpoint security that ISN'T a resource hog! ~
~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/>  ~

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