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Two external IP Adresses to NAT

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Two external IP Adresses to NAT - 10.Oct.2010 8:43:27 AM   
HennS

 

Posts: 1
Joined: 10.Oct.2010
Status: offline
Hello,

we have two external ip adresses. Now we will use the other one for an migration project to exchange 2010.

Example:

IP External 1.2.3.4 NAT through an Checkpoint Firewall to our ISA Server in den DMZ (192.168.1.*), and from the ISA to our internal LAN Exhange Server (192.168.250.50).

The challenge is now, how we can you the other external ip adress, when we nat it on the checkpoint device, so that the isa server know, that this is an request from the other external ip adress.
Is this possible? Because when we NAT form checkpoint to isa, we only see the adress form the checkpoint device and not the original ip. Also all the ports schould we the same.

Bets regards
Post #: 1

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