Configuring UDP helper to convert broadcast to unicast
Network requirements
As shown in Figure 54, configure UDP helper to convert broadcast to unicast on VLAN-interface 1 of Switch A. This feature enables Switch A to forward broadcast packets with UDP destination port number 55 to the destination server 10.2.1.1/16.
Figure 54: Network diagram
Configuration procedure
Make sure Switch A can reach the subnet 10.2.0.0/16.
# Enable UDP helper.
[SwitchA] System-view [SwitchA] udp-helper enable
# Enable the UDP port 55 for UDP helper.
[SwitchA] udp-helper port 55
# Specify the destination server 10.2.1.1 for UDP helper to convert broadcast to unicast on VLAN-interface 1.
[SwitchA] interface vlan-interface 1 [SwitchA-Vlan-interface1] ip address 10.110.1.1 16 [SwitchA-Vlan-interface1] udp-helper server 10.2.1.1
Verifying the configuration
# Display information about broadcast to unicast conversion by UDP helper on VLAN-interface 1.
[SwitchA-Vlan-interface1] display udp-helper interface Vlan-interface 1 Interface Server VPN instance Server address Packets sent Vlan-interface1 N/A 10.2.1.1 5