|(eth0: 84.23.13.43)
+--------------+
| |
| NAT router |
| |
+--------------+
|(eth1: 192.168.0.1)
|
----------------
( )
+--+ ( )
|__|------( 192.168.0.0/24 )
/____\ ( )
Host-A (________________)
(192.168.0.2)
Assuming we have above network situation and a destination PAT/NAT rule configured on the NAT router for eth0 which forwards all incoming packages with destination port TCP/80 to Host-A (192.168.0.2) I have following question:
What happens when a Host-B (192.168.0.10) in the local networks sends a HTTP request to 84.23.13.43? Some routers seem to manage this situation correctly others not. Is there a technical expression describing this situation? How can I find out which router can manage such internal request on an external ip and which not?