Dell PowerConnect 5548 User Guide - Page 246

The UDP relays are displayed. 2 To add a UDP relay, click Add, and enter the fields: - Source IP Address - Select the source IP address to where the switch is to relay UDP Broadcast packets, based on a configured UDP destination port. The interface must be one of the IPv4 interfaces configured on the switch. Select All for all addresses. - UDP Port (1 - 65535) - Check Default Services to select all of the following default ports: • IEN-116 Name Service (port 42) • DNS (port 53) • NetBIOS Name Server (port 137) • NetBIOS Datagram Server (port 138) • TACACS Server (port 49) • Time Service (port 37) If Default Services are not selected, check the text box and enter a UDP port. - Destination IP Address - Enter the IP address that receives the UDP packet relays. If this field is 0.0.0.0, UDP packets are discarded. If this field is 255.255.255.255, UDP packets are flooded to all IP interfaces. Configuring UDP Relay Using the CLI Commands The following table summarizes the CLI commands for setting fields displayed in the UDP Relay pages. Table 9-37. UDP Relay CLI Commands CLI Command ip helper-address {ipinterface|all} address [udpport-list] no ip helper-address {ipinterface|all} address Description Enables the forwarding of User Datagram Protocol (UDP) broadcast packets received on an interface to a specific (helper) address. Use the no form of this command to disable the forwarding of broadcast packets to a specific (helper) address. 246 Dell PowerConnect 55xx Systems User Guide