Chapter 5 Dhcpv6 Relay Agent - Juniper EX3400 Features Manual

CHAPTER 5
DHCPv6 Relay Agent
DHCPv6 Relay Agent Overview
Copyright © 2017, Juniper Networks, Inc.
DHCPv6 Relay Agent Overview on page 85
Inserting DHCPv6 Interface-ID Option (Option 18) In DHCPv6 Packets on page 86
Verifying and Managing DHCPv6 Relay Configuration on page 87
The DHCPv6 relay agent enhances the DHCP relay agent by providing support in an IPv6
network. The DHCPv6 relay agent passes messages between the DHCPv6 client and the
DHCPv6 server, similar to the way DHCP relay agent supports an IPv4 network.
When a DHCPv6 client logs in, the DHCPv6 relay agent uses the AAA service framework
to interact with the RADIUS server to provide authentication and accounting. The RADIUS
server, which is configured independently of DHCP, authenticates the client and supplies
the IPv6 prefix and client configuration parameters, such as session timeout and the
maximum number of clients allowed per interface.
NOTE: The PTX Series Packet Transport Routers do not support
authentication for DHCPv6 relay agents.
The DHCPv6 relay agent is compatible with the DHCP local server and the DHCP relay
agent, and can be enabled on the same interface as either the DHCP local server or DHCP
relay agent.
To configure the DHCPv6 relay agent on the router (or switch), you include the
statement at the
[edit forwarding-options dhcp-relay]
You can also include the
dhcpv6
[edit logical-systems logical-system-name forwarding-options dhcp-relay]
[edit logical-systems logical-system-name routing-instances routing-instance-name
forwarding-options dhcp-relay]
[edit routing-instances routing-instance-name forwarding-options dhcp-relay]
hierarchy level.
statement at the following hierarchy levels:
dhcpv6
85