DHCPv6 Controller Address Configuration using Option 52

Feature Overview

Clients receive the IPv6 address and option 52 parameters from the DHCPv6 server, and then connect to the SZ controller using the received SZ IP address specified in option 52. Option 52 enhances SZ controller management and connectivity in the network.

Requirements

This feature is not supported for ICX 7150-ES devices.

Considerations

• Option 52 can be configured in DHCPv6 configuration mode or DHCPv6 subnet configuration mode using the controller-address command.
  • If the controller address is configured at the global level, in DHCPv6 configuration mode, it applies to all pools configured on the switch.
  • If the controller address is configured at the subnet level in DHCPv6 subnet configuration mode, it applies only to that specific subnet. The server only advertises the controller address to clients within that subnet.
• The configured controller’s addresses are displayed in the output of the following commands:
  • show ipv6 dhcp6-server global
  • show ipv6 dhcp6-server pool
  • show ipv6 dhcp6-server subnet6
  • show running-config
• In a stacking system, the configured controller’s address is synchronized to the standby unit.
• The configured IPv6 address for a controller is restored after every reload. The IPv6 address is synced to the standby unit in a stacking system.
• A maximum of four controller addresses can be configured at either the global level or the subnet level.
• The IPv6 address for the controller cannot be configured via RESTCONF or the SNMP interface.
• The ICX switch as a DHCPv6 client is not supported..

Prerequisites

Access to the IPv6 address or IPv6 addresses of the CTRL interface on the SmartZone controller is required.