D-Link DGS-3130 User Manual - Page 188

DGS-3130 Series Layer 3 Stackable Managed Switch Web UI Reference Guide The fields that can be configured are described below: Parameter IP Forward Protocol UDP Port Description Enter the destination port of the UDP service to be forwarded here. The range is from 1 to 65535. 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. IP Helper Address This window is used to add or remove a target address for the forwarding of UDP broadcast packets. This feature takes effect only when the received interface has an IP address assigned. The system only forwards packets that satisfy the following restrictions:  The destination MAC address must be a broadcast address.  The destination IP address must be an all-one broadcast.  The packets are IPv4 UDP packets.  The IP TTL value must be greater than or equal to 2. 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. 178