Ip Udp-Helper Udp-Port; Show Ip Udp-Helper - Dell Force10 S4810P Reference Manual

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

show ip udp-helper
Display the configured UDP helper(s) on all interfaces.
E-Series, S4810
Syntax show ip udp-helper
Defaults none
Command Modes EXEC
Command History
Version 8.3.7.0
(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.
Introduced on the S4810.
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