Users Guide

01:44:54: Pkt rcvd on Gi 4/0 is handed over for DHCP processing.
Dell#debug ip udp-helper
UDP helper debugging is on
01:20:22: Pkt rcvd on Te 3/0 with IP DA (0xffffffff) will be sent on Gi
5/1 Gi 5/2
Vlan 3
01:44:54: Pkt rcvd on Te 4/0 is handed over for DHCP processing.
Related Commands ip udp-helper udp-port — enables the UDP broadcast feature on an interface.show ip udp-helper —
displays the congured 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 specied list of UDP ports.
S4820T
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 (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 none
Command Modes INTERFACE (cong-if)
Command History
This guide is platform-specic. 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 Description
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.2(1.0) Introduced on the Z9500.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
Pre-version 8.3.7.0 Introduced on the E-Series ExaScale.
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.
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Interfaces