udp-helper server

Use udp-helper server to specify a destination server for UDP helper to convert broadcast to unicast.

Use undo udp-helper server to remove a destination server.

Syntax

udp-helper server ip-address [ global | vpn-instance vpn-instance-name ]

undo udp-helper server [ ip-address [ global | vpn-instance vpn-instance-name ] ]

Default

No destination server is specified for UDP helper.

Views

Interface view

Predefined user roles

network-admin

Parameters

ip-address: Specifies the IP address of a destination server, in dotted decimal notation.

global: Forwards converted unicast packets to the server on the public network.

vpn-instance vpn-instance-name: Specifies an MPLS L3VPN instance to which the server belongs. The VPN instance name is a case-sensitive string of 1 to 31 characters.

Usage guidelines

Specify destination servers on an interface that receives UDP broadcast packets.

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.

If you specify only the IP address, UDP helper forwards converted unicast packets in the VPN bound to the interface that receives broadcast packets. If the interface is not bound to any VPNs, UDP helper forwards the unicast packets on the public network.

Examples

# Specify the destination server 192.1.1.2 for UDP helper 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 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