Users Guide

ip dhcp relay secondary-subnet
Enable DHCP relay secondary-subnet on all the interfaces in a switch.
C9000 Series
Syntax
[no] ip dhcp relay seconday-subnet
To disable the dhcp relay secondary-subnet, use theno ip dhcp relay secondary-subnet
command.
Defaults Disabled.
Command Modes CONFIGURATION
Command
History
This guide is platform-specific. For command information about other platforms, see 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
9.9(0.0) Introduced on the C9010.
9.7(0.0) Introduced on the S4810, S4820T, S6000 and Z-Series.
Example
Dell(conf)#ip dhcp relay secondary-subnet
ip helper-address
Specify the address of a DHCP server so that DHCP broadcast messages are forwarded when the DHCP server is not on the
same subnet as the client.
C9000 Series
Syntax
ip helper-address ip-address
To remove a DHCP server address, use the no ip helper-address command.
Parameters
ip-address Enter an IP address in dotted decimal format (A.B.C.D).
Defaults Not configured.
Command Modes INTERFACE
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 Description
9.9(0.0) Introduced on the C9010.
9.2(1.0) Introduced on the Z9500.
9.0.0.0 Added support for IPv6.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
Dynamic Host Configuration Protocol (DHCP) 613