Displaying and maintaining udp helper, Udp helper configuration example, Network requirements – H3C Technologies H3C S12500-X Series Switches User Manual
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Displaying and maintaining UDP helper
Execute display command in any view and reset command in user view.
Task Command
Display information about packets forwarded
by UDP helper.
display udp-helper interface interface-type interface-number
Clear UDP helper statistics.
reset udp-helper statistics
UDP helper configuration example
Network requirements
As shown in
, 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 43 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 UDP helper to forward 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
# Enable the interface to receive directed broadcasts destined for the directly connected network.
[SwitchA-Vlan-interface1] ip forward-broadcast