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Displaying and maintaining UDP helper
Execute display command in any view and reset commands in user view.
Task Command
Display information about broadcast to
unicast conversion by UDP helper on an
interface.
display udp-helper interface
interface-type
interface-number
Clear packet statistics for UDP helper.
reset udp-helper statistics
UDP helper configuration examples
Configuring UDP helper to convert broadcast to unicast
Network requirements
As shown in Figure 77, configure UDP helper to convert broadcast to unicast on GigabitEthernet
2/0/1 of Router A. This feature enables Router A to forward broadcast packets with UDP destination
port 55 to the destination server 10.2.1.1/16.
Figure 77 Network diagram
Configuration procedure
Make sure Router A can reach the subnet 10.2.0.0/16.
# Enable UDP helper.
<RouterA> system-view
[RouterA] udp-helper enable
# Enable UDP helper to forward broadcast packets with the UDP destination port 55.
[RouterA] udp-helper port 55
# Specify the destination server 10.2.1.1 on GigabitEthernet 2/0/1.
[RouterA] interface gigabitethernet 2/0/1
[RouterA-GigabitEthernet2/0/1] ip address 10.110.1.1 16
[RouterA-GigabitEthernet2/0/1] udp-helper server 10.2.1.1
Verifying the configuration
# Display information about broadcast to unicast conversion by UDP helper on GigabitEthernet
2/0/1.
[RouterA-GigabitEthernet2/0/1] display udp-helper interface gigabitethernet 2/0/1
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