Dell Force10 Z9000 FTOS Command Line Reference Guide for the Z9000 System FTOS - Page 767
ip udp-helper udp-port
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Usage Information Related Commands When a UDP broadcast packet is flooded out of an interface, and the outgoing interface is configured using this command, the outgoing packet's IP destination address is replaced with the configured broadcast address. debug ip udp-helper - enables debug and displays the debug information on a console. show ip udp-helper - displays the configured UDP helper(s) on all interfaces. 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 Parameters ip udp-helper udp-port [udp-port-list] To disable the UDP broadcast on a port, use the no ip udp-helper udp-port [udpport-list] command. udp-port-list (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. Defaults Command Modes Command History Usage Information Related Commands none INTERFACE (config-if) Version 8.3.7.0 Pre-version 8.3.7.0 Introduced on the S4810. Introduced on the E-Series ExaScale. If you configure the ip helper-address command and ip udp-helper udp-port 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. ip helper-address - configures the destination broadcast or host address for the DHCP server. debug ip udp-helper - enables debug and displays the debug information on a console. show ip udp-helper - displays the configured UDP helper(s) on all interfaces. 767
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