HP A5120 EI Series Command Reference Manual page 143

Use the undo udp-helper server command to remove the destination server.
No destination server is configured by default.
You can configure up to 20 destination servers on an interface.
Without the ip-address argument, the undo udp-helper server command removes all the destination
servers on an interface.
Related commands: display udp-helper server.
Examples
# Specify the IP address of the destination server as 192.1.1.2 on the interface VLAN-interface 100.
<Sysname> system-view
[Sysname] interface vlan-interface 100
[Sysname-Vlan-interface100] udp-helper server 192.1.1.2
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