ZyXEL Communications 2WG - Manual (Page 19)

ZyWALL 2WG Support Notes
All contents copyright (c) 2006 ZyXEL Communications Corporation.
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Deploying a transparent mode firewall doesn’t require any changes of settings on the original network
topology. It works as bridge/switch; therefore, all the hosts can communicate with each other as without
firewall in between. At the same time, the transparent firewall can check the packets passing through it
and block attacks and limit unauthorized access through access control right.
In the following section, we will explain how to configure ZyWALL as bridge firewall. Therefore, all
hosts and servers can keep using the same IP as that of current network.