DHCPv6 Server Overview
A Dynamic Host Configuration Protocol version 6 (DHCPv6) server can automatically allocate IP addresses to IP version 6 (IPv6) clients and deliver configuration settings to client hosts on a subnet or to requesting devices that need an IPv6 prefix. A DHCPv6 server lets network administrators centrally manage a pool of IP addresses among hosts and automate the assignment of IP addresses in a network.
 | Note: SRX Series devices do not support DHCP client authentication. In a DHCPv6 deployment, security policies control access through the device for any DHCP client that has received an address and other attributes from the DHCPv6 server. |
Some features include:
- Configuration for a specific interface or a group of interfaces
- Stateless address autoconfiguration (SLAAC)
- Prefix delegation, including access-internal route installation
- DHCPv6 server groups
The DHCPv6 server configuration usually consists of DHCPv6 options for clients, an IPv6 prefix, an address pool that contains IPv6 address ranges and options, and a security policy to allow DHCPv6 traffic. In a typical setup the provider Juniper Networks device is configured as an IPv6 prefix delegation server that assigns addresses to the customer edge device. The customer’s edge router then provides addresses to internal devices.
To configure DHCPv6 local server on a device, you include the DHCPv6 statement at the [edit system services dhcp-local-server] hierarchy level. You then create an address assignment pool for DHCPv6 that is configured in the [edit access address-assignment pool] hierarchy level using the family inet6 statement.
You can also include the dhcpv6 statement at the [edit routing-instances routing-instance-name system services dhcp-local-server] hierarchy.
| Note: Existing DHCPv4 configurations in the [edit system services dhcp] hierarchy are not affected when you upgrade to Junos OS Release 10.4 from an earlier version or enable DHCPv6 server. |
Modified: 2014-04-29
Related Documentation
- LN, SRX Series
- Example: Configuring DHCPv6 Server Options
- Example: Configuring an Address-Assignment Pool
- Configuring a Named Address Range for Dynamic Address Assignment
- Creating a Security Policy for DHCPv6
- Additional Information
- Administration Guide for Security Devices
