D-Link DGS-1520 User Manual - Page 243

DGS-1520 Series Gigabit Ethernet Smart Managed Switch Web UI Reference Guide To view the following window, click L3 Features > UDP Helper > IP Helper Address, as shown below: Figure 6-19 IP Helper Address Window The fields that can be configured are described below: Parameter Interface VLAN Helper Address Description Enter the VLAN interface ID used here. The range is from 1 to 4094. Enter the target IPv4 address for the forwarding of the UDP broadcast packet here. Click the Apply button to accept the changes made. Click the Delete button to delete the specified entry. Enter a page number and click the Go button to navigate to a specific page when multiple pages exist. IPv4 Static/Default Route This window is used to display and configure the IPv4 static and default route settings. The Switch supports static routing for IPv4 formatted addressing. Users can create up to 512 static route entries for IPv4. For IPv4 static routes, once a static route has been set, the Switch will send an ARP request packet to the next hop router that has been set by the user. Once an ARP response has been retrieved by the Switch from that next hop, the route becomes enabled. However, if the ARP entry already exists, an ARP request will not be sent. The Switch also supports a floating static route, which means that the user may create an alternative static route with a different next hop. This secondary next hop device route is considered as a backup static route when the primary static route is down. If the primary route is lost, the backup route will become active and begin forwarding traffic. Entries into the Switch's forwarding table can be made using an IP address, subnet mask, and gateway. To view the following window, click L3 Features > IPv4 Static/Default Route, as shown below: Figure 6-20 IPv4 Static/Default Route Window 233