1-3Displaying and Maintaining UDP HelperTo do… Use the command… RemarksDisplay the UDP broadcast relayforwarding information of a specifiedVLAN interface on the devicedisplay udp-helper server[ interface vlan-interface vlan-id ] Available in any viewClear statistics about packetsforwarded by UDP Helper reset udp-helper packet Available in user viewUDP Helper Configuration ExampleCross-Network Computer Search Through UDP HelperNetwork requirementsAs shown in Figure 1-1, PC A resides on network segment 192.168.1.0/24 and PC B on192.168.10.0/24; they are connected through Switch A and are routable to each other. It is required toconfigure UDP Helper on Switch A, so that PC A can find PC B through computer search. (Broadcastswith UDP port 137 are used for searching.)Figure 1-1 Network diagram for UDP Helper configurationConfiguration procedure# Enable UDP Helper on Switch A. system-view[SwitchA] udp-helper enable# Configure Switch A to forward broadcasts containing the destination UDP port number 137. (Bydefault, the device enabled with UDP Helper forwards the broadcasts containing the destination UDPport number 137.)[SwitchA] udp-helper port 137# Specify the destination server IP address on Vlan-interface 1.[SwitchA] interface vlan-interface 1[SwitchA-Vlan-interface1] udp-helper server 192.168.10.2
