Configuring Network Settings4. Indefault gateway.the IP Address field, type the IP address to use as the OfficeMode network'sNote: The OfficeMode network must not overlap other networks.the OfficeMode internal network range.6.Se page 107.7. If8. Cl9. ClCo5. In the Subnet Mask text box, typeIf desired, enable or disable Hide NAT.e Enabling/Disabling Hide NAT ondesired, configure DHCP options.See Configuring DHCP Server Options on page 101.ick Apply.A warning message appears.ick OK.A success message appears.nfiguring VLANsYo virtualLAN networks (VLANs). A VLAN is a logical network behind the NetDefendfir ere on the samephysical network: trafficfir AN and other networks passes throughthe fi LAN toany other internal network (including otde ce network congestion.For e ntVLA less of their physical location. The members of a division will beable to communicate with each other and share resources, and only members whoneed visions will be allowed to do so. Furthermore,ur NetDefend firewall allows you partition your network into severalewall. Computers in the same VLAN behave as if they wflows freely between them, without passing through aewall. In contrast, traffic between a VLrewall and is subject to the security policy. By default, traffic from a Vher VLANs) is blocked. In this way,fining VLANs can increase security and reduxample, you can assign each division within your organization to a differeN, regardto communicate with other diChapter 5: Managing Your Network 111
