ZyXEL ZyWALL 5 User Guide - Page 164

Chapter 8 Bridge Screens Table 31 NETWORK > Bridge (continued) LABEL DESCRIPTION First/Second/Third DNS Server DNS (Domain Name System) is for mapping a domain name to its corresponding IP address and vice versa. The DNS server is extremely important because without it, you must know the IP address of a machine before you can access it. The ZyWALL uses a system DNS server (in the order you specify here) to resolve domain names for content filtering, the time server, etc. If you have the IP address(es) of the DNS server(s), enter the DNS server's IP address(es) in the field(s) to the right. Rapid Spanning Tree Protocol Setup Enable Rapid Spanning Select the check box to activate RSTP on the ZyWALL. Tree Protocol Bridge Priority Enter a number between 0 and 61440 as bridge priority of the ZyWALL. Bridge priority is used in determining the root switch, root port and designated port. The switch with the highest priority (lowest numeric value) becomes the root. If multiple devices have the lowest priority, the device with the lowest MAC address becomes the root. The lower the numeric value you assign, the higher the priority for this bridge. Bridge Priority determines the root bridge, which in turn determines Hello Time, Max Age and Forward Delay. Bridge Hello Time Enter an interval (between 1 and 10) in seconds that the root bridge waits before sending a hello packet. Bridge Max Age Enter an interval (between 6 and 40) in seconds that a bridge waits to get a Hello BPDU from the root bridge. Forward Delay Enter the length of time (between 4 and 30) in seconds that a bridge remains in the listening and learning port states. The default is 15 seconds. Bridge Port This is the bridge port type. RSTP Active Select the check box to enable RSTP on the corresponding port. RSTP Priority Enter a number between 0 and 240 as RSTP priority for the corresponding 0(Highest)~240(Lowest) port. 0 is the highest. RSTP Path Cost Enter a number between 1 and 65535 as RSTP path cost for the 1(Lowest)~65535(Highe corresponding port. 65535 is the highest. st) Apply Click Apply to save your changes back to the ZyWALL. Reset Click Reset to begin configuring this screen afresh. 8.3 The Bridge Port Roles Screen Use the Port Roles screen to set ports as part of the LAN, DMZ and/or WLAN interface. Ports 1~4 on the ZyWALL 5 and ZyWALL 35 ports can be part of the LAN, DMZ or WLAN interface. The ZyWALL 70 has a separate (dedicated) LAN port, so ports 1~4 can be set as part of the DMZ and/or WLAN interface. To change your ZyWALL's port role settings, click NETWORK > BRIDGE > Port Roles. The screen appears as shown. 164 ZyWALL 5/35/70 Series User's Guide