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[FW1] Dual NAT with FW-1 on NT



Hi All,

I am having problems with setting up dual NAT on FW-1(4.1) on NT.  My
network configuration is :

1. 10.0.0.0 Network(External)
2. 192.168.0.0 Network(Internal)
3. FW-1 one interface with IP= 10.0.0.1
4. FW-1 second interface with IP=192.168.1.1
5. Host on 10.0.0.0 network with IP=10.0.0.2 with the default GW=10.0.0.1
6. Host on 192.168.0.0 network with IP=192.168.10.23 with the default
GW=192.168.1.1

The GUI runs on the clients on 10.0.0.0 network on port 2899 and needs to
connect to the server on port 2900. I have tested single NAT and it works
fine. But dual NAT does not.

My local.arp file on the FW has an entry

10.0.0.1 <MAC of 10.0.0.1 interface>

I have added the following persistent route on the FW:

10.0.0.0  255.255.255.255   192.168.1.1  192.168.1.1 1

which implies al clients on 10.0.0.0 network gets routed to the 192.168.1.1
interface of the firewall

I am not very clear how to define the NAT rule. Can someone please tell me
how to define the rule and if there is something else which needs to be
done. Do I need to configure anti spoofing?

Thanks a lot!

-Sumit




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