HPE FlexFabric 5950 Series Command Reference Manual page 209

Usage guidelines
Specify destination servers on an interface that receives UDP broadcast packets. If the packets'
destination UDP port numbers match the UDP helper ports, UDP helper forwards the broadcasts to
the specified servers.
You can specify a maximum of 20 unicast and multicast addresses for UDP helper to convert
broadcast packets on an interface.
If you do not specify the ip-address argument, the undo udp-helper server command removes all
destination servers on the interface.
A destination server with the global keyword and the same destination server with the vpn-instance
vpn-instance-name option do not overwrite each other. If you specify only the IP address, UDP
helper forwards converted unicast packets in the VPN to which the receiving interface belongs. If the
interface is not bound to any VPN instance, UDP helper forwards the unicast packets on the public
network.
Examples
# Specify the destination server 192.1.1.2 for UDP helper to convert broadcast to unicast on
VLAN-interface 100.
<Sysname> system-view
[Sysname] interface vlan-interface 100
[Sysname-Vlan-interface100] udp-helper server 192.1.1.2
# Specify the destination server 192.1.1.2 on the public network for UDP helper to convert broadcast
to unicast on VLAN-interface 100.
<Sysname> system-view
[Sysname] interface vlan-interface 100
[Sysname-Vlan-interface100] udp-helper server 192.1.1.2 global
Related commands
display udp-helper interface
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