H3C Technologies H3C S7500E Series Switches - Manual (Page 119)

12-3
UDP Helper Configuration Examples
UDP Helper Configuration Example
Network requirements
As shown in Figure 12-1 , the IP address of VLAN-interface 1 of Switch A is 10.110.1.1/16, and the
interface connects to the subnet 10.110.0.0/16.
Configure UDP Helper to forward broadcast packets with UDP destination port number 55 and
destination IP address 255.255.255.255 or 10.110.255.255 to the destination server 10.2.1.1/16.
Figure 12-1 Network diagram for UDP Helper configuration
Configuration procedure
The following configuration assumes that a route from Switch A to the network segment 10.2.0.0/16 is
available.
# Enable UDP Helper.
<SwitchA> system-view
[SwitchA] udp-helper enable
# Enable the forwarding broadcast packets with the UDP destination port 55.
[SwitchA] udp-helper port 55
# Specify the destination server 10.2.1.1 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