Reference Guide

Version
8.3.19.0
Introduced on the S4820T.
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.7.0 Introduced on the S4810.
Pre-version
8.3.7.0
Introduced on the E-Series ExaScale.
Usage
Information
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.
Related
Commands
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 helpers on all interfaces.
show ip udp-helper
Display the configured UDP helpers on all interfaces.
S4820T
Syntax
show ip udp-helper
Defaults none
Command
Modes
EXEC
Command
History
This guide is platform-specific. For command information about other platforms,
refer to the relevant Dell Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version
8.3.19.0
Introduced on the S4820T.
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.7.0 Introduced on the S4810.
Interfaces
821