ZyXEL Communications 10 Manuel d'utilisateur télécharger pdf (Page 20)

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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ZyXEL Communications 10 Manuel d'utilisateur Page 20