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 keywork 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
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.14(1.0) Enhanced to support non-default VRF configuration for DHCPv6 helper address.
9.9(0.0) Introduced on the C9010.
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
Dell(conf-if-te-0/0)#ipv6 helper-address
X:X:X:X::X IPv6 helper address
VRF VRF name.
lease
Specify a lease time for the addresses in a pool.
C9000 Series
Syntax
lease {days [hours] [minutes] | infinite}
Parameters
days Enter the number of days of the lease. The range is from 0 to 31.
hours Enter the number of hours of the lease. The range is from 0 to 23.
minutes Enter the number of minutes of the lease. The range is from 0 to 59.
infinite Specify that the lease never expires.
Defaults 24 hours
Command Modes DHCP <POOL>
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) Inroduced on the C9010.
9.2(1.0) Introduced on the Z9500.
8.3.19.0 Introduced on the S4820T.
630 Dynamic Host Configuration Protocol (DHCP)