CLI Guide

Command Modes INTERFACE (cong-if)
Supported Modes Full–Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information
If you congure the ip helper-address command and ip udp-helper udp-port command, the
behavior is that the UDP broadcast trac with port numbers 67/68 is unicast relayed to the DHCP server per the
ip helper-address conguration. This occurs regardless if the ip udp-helper udp-port command
contains port numbers 67/68 or not.
If you only congure the ip udp-helper udp-port command, all the UDP broadcast trac is ooded,
including ports 67/68 trac if those ports are part of the udp-port-list.
Related Commands
ip helper-address — congures 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 congured UDP helpers on all interfaces.
show ip udp-helper
Display the congured UDP helpers on all interfaces.
Syntax
show ip udp-helper
Defaults none
Command Modes EXEC
Supported Modes Full–Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
Example
Dell#show ip udp-helper
--------------------------------------------------
Port UDP port list
--------------------------------------------------
Te 1/1 656, 658
Te 1/2 All
Related Commands
debug ip udp-helper — enables debug and displays the debug information on a console.
ip udp-broadcast-address — congures a UDP IP address for broadcast.
ip udp-helper udp-port — enables the UDP broadcast feature on an interface either for all UDP ports or a
specied list of UDP ports.
Interfaces 577