Nat Mode; Deploy Zywall Ssl 10 At The Gateway - ZyXEL Communications ZYWALL SSL 10 Support Notes

ZyWALL SSL 10 Support Notes

1.2 NAT Mode

1.2.1 Deploy ZYWALL SSL 10 at the gateway

If your company's environment hasn't had ZyWALL or other firewall to provide security
checking mechanism yet, it's suggested that you put ZYWALL SSL 10 at the network
gateway and also perform the NAT feature to translate the private IP address to public.
See following figure to show you the topology for example.
The network topology is used to illustrate this application. We used one ZyWALL as
main office's gateway which is connected to the branch office's ZyWALL. The ZyWALL
SSL 10 is put at behind the main office's gateway. Remote users could either access the
main office's LAN resource or access the remote office's LAN resource via IPSec VPN
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