Administrator Guide

To delete the IPv6 helper address, use the [no] ipv6 helper-address [vrf vrf-name] ipv6-
address command.
Parameters
vrf vrf-name (Optional) Enter the keyword vrf and then the name of the VRF through which the host
address can be reached.
ipv6-address Enter the keywordipv6–address through which the server address can be reached.
Default Disabled.
Command Modes INTERFACE
Command History
This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC
Networking OS Command Line Reference Guide.
Version Description
9.14(1.0) Enhanced to support non-default VRF configuration for DHCPv6 helper address.
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.10(0.0) Introduced on the S3148.
9.10(0.0) Introduced on the S6100.
9.8(2.0) Introduced on the S3100 series.
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S4810, S4820T, S6000, S6000–ON, Z9000, and Z9500.
Usage Information
Use this command on the interfaces where the DHCP clients are connected to forward the packets from clients
to DHCP server and vice-versa.
Example
DellEMC(conf-if-te-1/1)# ipv6 helper-address
X:X:X:X::X IPv6 helper address
VRF VRF name.
ip dhcp relay secondary-subnet
Enable DHCP relay secondary- subnet on all the interfaces.
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.
Version Description
9.7(0.0) Introduced on the S4810, S4820T, S6000 and Z-Series.
Example
Dell(conf)# ip dhcp relay secondary-subnet
Dynamic Host Configuration Protocol (DHCP) 561