ZyXEL ZyWALL 5 User Guide - Page 161
Bridge Screens
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CHAPTER 8 Bridge Screens 8.1 Overview The ZyWALL can act as a bridge between a switch and a wired LAN or between two routers. This chapter describes how to configure bridge settings. This chapter is only applicable when the ZyWALL is in bridge mode. In bridge mode, the ZyWALL functions as a transparent firewall (also known as a bridge firewall). The ZyWALL bridges traffic traveling between the ZyWALL's interfaces and still filters and inspects packets. You do not need to change the configuration of your existing network. In the first figure below the ZyWALL is in bridge mode and is bridging traffic on the WAN. The router device has a public WAN IP address and the ZyWALL is transparent. In the second figure the ZyWALL is in router mode and has a public WAN IP address and routes traffic between the LAN and WAN. Figure 89 Bridge Mode LAN 192.168.1.1 WAN A.B.C.D 192.168.0.1 Figure 90 Router Mode LAN 192.168.1.33 192.168.1.1 WAN A.B.C.D 8.1.1 What You Can Do in the Bridge Screens • Use the Bridge screen (Section 8.2 on page 163) to configure bridge and RSTP (Rapid Spanning Tree Protocol) settings. • Use the Port Roles screen (Section 8.3 on page 164) to set ports as part of the LAN, DMZ and/or WLAN interface. ZyWALL 5/35/70 Series User's Guide 161
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