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play_arrow AAA for Subscriber Management
play_arrow DHCP and DHCPv6 for Subscriber Management
- play_arrow DHCP for Subscriber Management
play_arrow IPv6 for Subscriber Management
- play_arrow IPv6 for Subscriber Management
play_arrow DHCPv6 for Subscriber Management
play_arrow Packet Triggered Subscriber Services
- play_arrow Packet Triggered Subscriber Services
  - IP Demultiplexing Interfaces on Packet-Triggered Subscriber Services
play_arrow Address-Assignment Pools for Subscriber Management
- play_arrow Address-Assignment Pools for Subscriber Management
  - Address-Assignment Pools for Subscriber Management
play_arrow DNS Addresses for Subscriber Management
- play_arrow DNS Addresses for Subscriber Management
  - DNS Name Server Addresses for Subscriber Management
play_arrow M:N Subscriber Redundancy
- play_arrow M:N Subscriber Redundancy
play_arrow Access Node Control Protocol and the ANCP Agent for Subscriber Services
- play_arrow Access Node Control Protocol and the ANCP Agent for Subscriber Services
play_arrow Diameter Base Protocol and its Applications
- play_arrow Diameter Base Protocol and its Applications
play_arrow Configuration Statements and Operational Commands

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English

Dual Stack for PPPoE Access Networks Using DHCP

date_range 06-Dec-23

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Configuring a DHCPv6 Local Server for DHCPv6 over PPPoE

To layer DHCPv6 above the PPPoE IPv6 family (inet6), create a DHCPv6 local server and associate DHCPv6 with the PPPoE interfaces by adding the PPPoE interfaces to the DHCPv6 local server configuration. Specify static and dynamic PPPoE interfaces as follows:

Dynamic—Use the pp0.0 (PPPoE) logical interface as a wildcard to indicate that a DHCPv6 binding can be made on top of a PPPoE interface.
Static—Use unit numbers to explicitly specify static interfaces; for example, pp0.2000.

To configure a DHCPv6 local server:

Access the DHCPv6 local server configuration.

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[edit]
user@host# edit system services dhcp-local-server dhcpv6
[edit system services dhcp-local-server dhcpv6]

Create a group for dynamic PPPoE interfaces and assign a name.
The group feature groups a set of interfaces and then applies a common DHCP configuration to the named interface group.
```
[edit system services dhcp-local-server dhcpv6]
user@host# edit group group-pppoe 
```

For dynamic PPPoE logical interfaces, add an interface.

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[edit system services dhcp-local-server dhcpv6 group group-pppoe]
user@host# set interface pp0.0 

For static PPPoE, add a range of interfaces.

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[edit system services dhcp-local-server dhcpv6 group group-pppoe]
user@host# set interface pp0.2000 upto pp0.2999

Configuring a PPPoE Dynamic Profile for Use with DHCP Addressing in a Dual-Stack Network

Configure a dynamic profile for IPv4 and IPv6 subscribers that access the network. The dynamic profile defines the attributes of the dynamic PPPoE logical subscriber interface.

To configure a PPPoE dynamic profile for both IPv4 and IPv6 subscribers:

Create and name the dynamic profile.
```
[edit]
user@host# edit dynamic profiles PPPOE-dyn-ipv4v6
```
If you are using routing instances, add a routing instance to the profile, and add an interface to the routing instance.
- Specify the $junos-routing-instance variable for the routing instance. The routing instance variable is dynamically replaced with the routing instance the accessing subscriber uses when connecting to the BNG.
- Specify the $junos-interface-name variable for the interface. The interface variable is dynamically replaced with the interface that the accessing subscriber uses when connecting to the BNG.
```
[edit dynamic profiles PPPOE-dyn-ipv4v6]
user@host# set routing-instances $junos-routing-instance interface $junos-interface-name
```
Add a PPPoE logical interface (pp0) to the profile, and specify $junos-interface-unit as the predefined variable to represent the logical unit number for the interface. The variable is dynamically replaced with the actual unit number supplied by the network when the subscriber logs in.
```
[edit dynamic profiles PPPOE-dyn-ipv4v6]
user@host# edit interfaces pp0 unit $junos-interface-unit
```
Configure the IPv4 family for the pp0 interface as follows:
- If you are not using routing instances, assign an unnumbered address. The unnumbered address enables the local address to be derived from the specified interface and allows IP processing on the interface without an explicit IP address assigned to the interface.
  
  For example:
  [edit dynamic-profiles PPPOE-dyn-ipv4v6 interfaces pp0 unit "$junos-interface-unit"] user@host# set family inet unnumbered-address lo0.0
- If you are using routing instances, assign the predefined variable $junos-loopback-interface.
  
  For example:
  [edit dynamic-profiles PPPOE-dyn-ipv4v6 interfaces pp0 unit "$junos-interface-unit"] user@host# set family inet unnumbered-address $junos-loopback-interface
Configure the IPv6 family for the pp0 interface as follows:
- If you are not using routing instances, assign an unnumbered address that specifies the loopback interface. The unnumbered address enables the local address to be derived from the loopback interface and allows IP processing on the interface without an explicit IP address assigned to the interface.
  
  For example:
  [edit dynamic-profiles PPPOE-dyn-ipv4v6 interfaces pp0 unit "$junos-interface-unit"] user@host# set family inet6 unnumbered-address lo0.0
- If you are using routing instances, assign the predefined variable $junos-loopback-interface.
  
  For example:
  [edit dynamic-profiles PPPOE-dyn-ipv4v6 interfaces pp0 unit "$junos-interface-unit"] user@host# set family inet6 unnumbered-address $junos-loopback-interface
Specify $junos-underlying-interface as the predefined variable to represent the name of the underlying Ethernet interface on which the router creates the dynamic PPPoE logical interface. The variable is dynamically replaced with the actual name of the underlying interface.
```
[edit dynamic-profiles PPPOE-dyn-ipv4v6 interfaces pp0 unit "$junos-interface-unit"]
user@host# set pppoe-options underlying-interface $junos-underlying-interface
```

Define the router to act as a PPPoE server when a PPPoE logical interface is dynamically created.

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[edit dynamic-profiles PPPOE-dyn-ipv4v6 interfaces pp0 unit "$junos-interface-unit"]
user@host# set pppoe-options server

(Optional) Configure the PPP authentication protocol for the pp0 interface. Specify either chap or pap (or both).

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[edit dynamic-profiles PPPOE-dyn-ipv4v6 interfaces pp0 unit "$junos-interface-unit"]
user@host# set ppp-options chap 
user@host# set ppp-options pap

(Optional) Enable keepalives and set an interval for keepalives. We recommend an interval of 30 seconds. For example:
```
[edit dynamic-profiles PPPOE-dyn-ipv4v6 interfaces pp0 unit "$junos-interface-unit"]
user@host# set keepalives interval 30 
```

arrow_backward PREVIOUS Best Practices for Configuring IPv4 and IPv6 Dual Stack in a PPPoE Access Network

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Broadband Subscriber Sessions User Guide

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Dual Stack for PPPoE Access Networks Using DHCP

Configuring a DHCPv6 Local Server for DHCPv6 over PPPoE

Configuring a PPPoE Dynamic Profile for Use with DHCP Addressing in a Dual-Stack Network

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Broadband Subscriber Sessions User Guide

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Dual Stack for PPPoE Access Networks Using DHCP

Configuring a DHCPv6 Local Server for DHCPv6 over PPPoE

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Configuring a PPPoE Dynamic Profile for Use with DHCP Addressing in a Dual-Stack Network

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