ZyXEL ZyWALL 5 User Guide - Page 155
The LAN Static DHCP Screen
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Chapter 7 LAN Screens Table 27 NETWORK > LAN (continued) LABEL DESCRIPTION Windows Networking (NetBIOS over TCP/IP) NetBIOS (Network Basic Input/Output System) are TCP or UDP packets that enable a computer to connect to and communicate with a LAN. For some dial-up services such as PPPoE or PPTP, NetBIOS packets cause unwanted calls. However it may sometimes be necessary to allow NetBIOS packets to pass through to the WAN in order to find a computer on the WAN. Allow between LAN and WAN1 Select this check box to forward NetBIOS packets from the LAN to WAN 1and from WAN 1 to the LAN. If your firewall is enabled with the default policy set to block WAN 1 to LAN traffic, you also need to enable the default WAN 1 to LAN firewall rule that forwards NetBIOS traffic. Clear this check box to block all NetBIOS packets going from the LAN to WAN 1 and from WAN 1 to the LAN. Allow between LAN and WAN2 Select this check box to forward NetBIOS packets from the LAN to WAN 2 and from WAN 2 to the LAN. If your firewall is enabled with the default policy set to block WAN 2 to LAN traffic, you also need to enable the default WAN 2 to LAN firewall rule that forwards NetBIOS traffic. Clear this check box to block all NetBIOS packets going from the LAN to WAN 2 and from WAN 2 to the LAN. Allow between LAN and DMZ Select this check box to forward NetBIOS packets from the LAN to the DMZ and from the DMZ to the LAN. If your firewall is enabled with the default policy set to block DMZ to LAN traffic, you also need to enable the default DMZ to LAN firewall rule that forwards NetBIOS traffic. Clear this check box to block all NetBIOS packets going from the LAN to the DMZ and from the DMZ to the LAN. Allow between LAN and WLAN Select this check box to forward NetBIOS packets from the LAN to the WLAN and from the WLAN to the LAN. Clear this check box to block all NetBIOS packets going from the LAN to the WLAN and from the WLAN to the LAN. Apply Click Apply to save your changes back to the ZyWALL. Reset Click Reset to begin configuring this screen afresh. 7.3 The LAN Static DHCP Screen This table allows you to assign IP addresses on the LAN to specific individual computers based on their MAC addresses. To change your ZyWALL's static DHCP settings, click NETWORK > LAN > Static DHCP. The screen appears as shown. ZyWALL 5/35/70 Series User's Guide 155