D-Link DGS-1520 User Manual - Page 242

DGS-1520 Series Gigabit Ethernet Smart Managed Switch Web UI Reference Guide UDP Helper IP Forward Protocol This window is used to display and configure the IP forward protocol settings. This feature is used to enable the forwarding of a specific UDP service type of packets. To view the following window, click L3 Features > UDP Helper > IP Forward Protocol, as shown below: Figure 6-18 IP Forward Protocol Window 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. 232