C613-50631-01 Rev A Command Reference for IE340 Series 878
AlliedWare Plus™ Operating System - Version 5.5.3-0.x
IP ADDRESSING AND PROTOCOL COMMANDS
IP
FORWARD-PROTOCOL UDP
ip forward-protocol udp
Overview This command enables you to control which UDP broadcasts will be forwarded to
the helper address(es). A UDP broadcast will only be forwarded if the destination
UDP port number in the packet matches one of the port numbers specified using
this command.
Refer to the IANA site (www.iana.org) for a list of assigned UDP port numbers for
protocols to forward using ip forward-protocol udp.
Use the no variant of this command to remove a port number from the list of
destination port numbers that are used as the criterion for deciding if a given UDP
broadcast should be forwarded to the IP helper address(es).
Syntax
ip forward-protocol udp <port>
no ip forward-protocol udp <port>
Default The ip forward-protocol udp command is not enabled by default.
Mode Global Configuration
Usage notes Combined with the ip helper-address command in interface mode, the ip
forward-protocol udp command in Global Configuration mode allows control of
which protocols (destination port numbers) are forwarded. The ip
forward-protocol udp command configures protocols for forwarding, and the ip
helper-address command configures the destination address(es).
NOTE:
The types of UDP broadcast packets that the device will forward are ONLY those
specified by the ip forward-protocol command(s). There are no other UDP packet
types that the IP helper process forwards by default.
NOTE:
The ip forward-protocol udp command does not support BOOTP / DHCP Relay. The
ip dhcp-relay command must be used instead. For this reason, you may not configure
UDP ports 67 and 68 with the ip forward-protocol udp command.
See the IP Feature Overview and Configuration Guide for more information about
DNS Relay.
Examples To configure forwarding of packets on a UDP port, use the following commands:
awplus# configure terminal
awplus(config)# ip forward-protocol udp <port>
Parameter Description
<port> UDP Port Number.
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