Ip Udp-Helper Udp-Port - Dell Force10 Z9000 Reference Manual

Usage When a UDP broadcast packet is flooded out of an interface, and the outgoing interface is
Information configured using this command, the outgoing packet's IP destination address is replaced with
the configured broadcast address.
Related
debug ip udp-helper
Commands
show ip udp-helper

ip udp-helper udp-port

Enable the UDP broadcast feature on an interface either for all UDP ports or a specified list of UDP ports.
E-Series, S4810
Syntax ip udp-helper udp-port [udp-port-list]
To disable the UDP broadcast on a port, use the no ip udp-helper udp-port [udp-
port-list] command.
Parameters
udp-port-list
Defaults none
Command Modes INTERFACE (config-if)
Command History
Version 8.3.7.0
Pre-version
8.3.7.0
Usage
If you configure the ip helper-address command and ip udp-helper udp-port
Information
command, the behavior is that the UDP broadcast traffic with port numbers 67/68 is unicast
relayed to the DHCP server per the ip helper-address configuration. This occurs
regardless if the ip udp-helper udp-port command contains port numbers 67/68 or
not.
If you only configure the ip udp-helper udp-port command, all the UDP broadcast
traffic is flooded, including ports 67/68 traffic if those ports are part of the udp-port-list.
Related
ip helper-address
Commands
debug ip udp-helper
show ip udp-helper
– enables debug and displays the debug information on a console.
– displays the configured UDP helper(s) on all interfaces.
(OPTIONAL) Enter up to 16 comma-separated UDP port numbers.
NOTE: If you do not use this option, all UDP ports are considered
by default.
Introduced on the S4810.
Introduced on the E-Series ExaScale.
– configures the destination broadcast or host address for the DHCP server.
– enables debug and displays the debug information on a console.
– displays the configured UDP helper(s) on all interfaces.
767