Example for Configuring IPv6 User-Side Multicast for PPPoE Access Users

This section provides an example for configuring IPv6 user-side multicast for PPPoE access users.

Networking Requirements

On the network shown in Figure 1, users (PC1) are PPPoE access users, and they want to join multicast programs. Configure IPv6 user-side multicast to implement user-based on-demand multicast data forwarding.

Figure 1 Configuring IPv6 user-side multicast for PPPoE access users

Interface 1 and interface 2 in this example stand for GE 0/1/0 and GE 0/1/1.1, respectively.

Configuration Roadmap

The configuration roadmap is as follows:

Configure Authentication, Authorization and Accounting (AAA) schemes.
Configure a local IPv6 prefix pool.
Configure a local IPv6 address pool and bind the local IPv6 prefix pool to the local address pool.
Configure an AAA domain and bind it to the IPv6 address pool.
Configure the PPPoE access mode:
1. Configure a virtual template (VT) interface.
2. Bind a VT to an interface.
3. Bind a sub-interface to a VLAN.
4. Configure a BAS interface and specify a user access type for the interface.
Configure a multicast replication mode. Multicast replication by multicast VLAN is used as an example.
Configure basic multicast functions:
1. Enable IPv6 multicast routing.
2. Enable IPv6 PIM-SM on all BRAS interfaces.
3. Enable MLD on the BRAS interface connected to users.

Data Preparation

Local prefix pool, address prefix, and prefix length parameters
Local address pool parameters
Authentication and accounting schemes
User domain
VT number
BAS interface parameters

Procedure

Configure AAA schemes.

# Configure an authentication scheme.

<HUAWEI> system-view
[HUAWEI] sysname BRAS
[*HUAWEI] commit
[~BRAS] aaa
[*BRAS-aaa] authentication-scheme none
[*BRAS-aaa-authen-none] authentication-mode none
[*BRAS-aaa-authen-none] quit
[*BRAS-aaa] commit

# Configure an accounting scheme.

[~BRAS-aaa] accounting-scheme none
[*BRAS-aaa-accounting-none] accounting-mode none
[*BRAS-aaa-accounting-none] quit
[*BRAS-aaa] quit
[*BRAS] commit

Configure a local IPv6 prefix pool.

[~BRAS] ipv6 prefix ipv6 local
[*BRAS-ipv6-prefix-ipv6] prefix 2001::db8:1::/64
[*BRAS-ipv6-prefix-ipv6] quit
[*BRAS] commit

Configure a local IPv6 address pool and bind the local IPv6 prefix pool to the local address pool.

[~BRAS] ipv6 pool ipv6 bas local
[*BRAS-ipv6-pool-ipv6] prefix ipv6
[*BRAS-ipv6-pool-ipv6] quit
[*BRAS] commit

Configure a domain and bind the local address pool to the domain.

[~BRAS] aaa
[*BRAS-aaa] domain wdomain
[*BRAS-aaa-domain-wdomain] authentication-scheme none
[*BRAS-aaa-domain-wdomain] accounting-scheme none
[*BRAS-aaa-domain-wdomain] ipv6-pool ipv6
[*BRAS-aaa-domain-wdomain] quit
[*BRAS-aaa] quit
[*BRAS] commit

Configure a VT interface.

[~BRAS] interface virtual-template 100
[*BRAS-Virtual-Template100] ppp authentication-mode chap
[*BRAS-Virtual-Template100] quit
[*BRAS] commit

Bind a sub-interface to a VLAN and specify a VT interface for the sub-interface.

[~BRAS] interface gigabitethernet 0/1/1.1
[*BRAS-GigabitEthernet0/1/1.1] user-vlan 133
[*BRAS-GigabitEthernet0/1/1.1-vlan-133-133] quit
[*BRAS-GigabitEthernet0/1/1.1] pppoe-server bind virtual-template 100
[*BRAS-GigabitEthernet0/1/1.1] commit

Configure a BAS interface and specify a user access type for the interface.

[~BRAS-GigabitEthernet0/1/1.1] bas
[*BRAS-GigabitEthernet0/1/1.1-bas] access-type layer2-subscriber default-domain authentication wdomain
[*BRAS-GigabitEthernet0/1/1.1-bas] quit
[*BRAS-GigabitEthernet0/1/1.1] quit
[*BRAS] commit

# Run the display access-user domain wdomain command to check information about users that have gone online. The command output shows that the user with the user ID 65 has gone online in PPPoE mode.

[~BRAS] display  access-user domain wdomain
  ------------------------------------------------------------------------------
  UserID  Username                Interface      IP address       MAC
          Vlan          IPv6 address             Access type
  ------------------------------------------------------------------------------
  65      spirent33@wdomain       GE0/1/1.1      -                00-e0-fc-12-34-56
          133/-         2001::db8:1::10:CC00:200:27E9   PPPoE
  ------------------------------------------------------------------------------
  Normal users                       : 1
  RUI Local users                    : 0
  RUI Remote users                   : 0
  Total users                        : 1

Enable multicast replication by multicast VLAN on a BAS interface.

[~BRAS] interface gigabitethernet 0/1/1.1
[*BRAS-GigabitEthernet0/1/1.1] multicast user-aggregation vlan 81
[*BRAS-GigabitEthernet0/1/1.1] commit
[~BRAS-GigabitEthernet0/1/1.1] quit

Configure basic multicast functions.

[~BRAS] multicast ipv6 routing-enable
[*BRAS] interface gigabitethernet 0/1/0
[*BRAS-GigabitEthernet0/1/0] undo shutdown
[*BRAS-GigabitEthernet0/1/0] ipv6 enable
[*BRAS-GigabitEthernet0/1/0] ipv6 address 2001:db8:1::1/64
[*BRAS-GigabitEthernet0/1/0] pim ipv6 sm
[*BRAS-GigabitEthernet0/1/0] quit
[*BRAS] commit
[~BRAS] interface gigabitethernet 0/1/1.1
[~BRAS-GigabitEthernet0/1/1.1] ipv6 enable
[*BRAS-GigabitEthernet0/1/1.1] ipv6 address auto link-local
[*BRAS-GigabitEthernet0/1/1.1] pim ipv6 sm
[*BRAS-GigabitEthernet0/1/1.1] mld enable
[*BRAS-GigabitEthernet0/1/1.1] quit
[*BRAS] commit

Verify the configuration.

# Run the display multicast group-ip command to display information about users of a specified multicast group. The command output shows that the user with ID 65 joins the multicast program whose group address is FF18::1.

[~BRAS] display multicast group-ip FF18::1 out-interface GigabitEthernet 0/1/1.1
  User ID    User IP                     User type    Interface

  65         2001::db8:1::10:CC00:200:27E9      Local        GigabitEthernet0/1/1.1

  Local user number :1
  Remote user number:0
  Total user number :1

# Run the display multicast user-id command to display information about the multicast programs that a specified user joins on a BAS interface.

[~BRAS] display multicast user-id 65
  User information:
  User ID             :65
  User IPv6 address   :2001::db8:1::10:CC00:200:27E9
  Gateway IPv6 address:FE80::200:14FF:FE00:571
  BRAS interface      :GigabitEthernet0/1/1.1
  User MAC-address    :00-e0-fc-12-34-56
  MAX program list    :4

  User order program:
  Group IP           Source IP
  FF18::1            ::

  Total:1

# Run the display pim ipv6 routing-table command to check IPv6 PIM routing entries. For example:

[~BRAS] display pim ipv6 routing-table
 VPN-Instance: public net
 Total 1 (*, G) entry; 1 (S, G) entry

 (*, FF18::1)
     RP: NULL
     Protocol: pim-sm, Flag: WC NIIF
     UpTime: 00:01:31
     Upstream interface: NULL, Refresh time: 00:01:31
         Upstream neighbor: NULL
         RPF prime neighbor: NULL
     Downstream interface(s) information:
     Total number of downstreams: 1
        1: GigabitEthernet0/1/1(bas)
             Protocol: mld, UpTime: 00:01:31, Expires: -

 (2001:db8:1::2, FF18::1)
     RP: NULL
     Protocol: pim-sm, Flag: SPT LOC ACT
     UpTime: 01:39:59
     Upstream interface: GigabitEthernet0/1/0, Refresh time: 01:39:59
         Upstream neighbor: NULL
         RPF prime neighbor: NULL
     Downstream interface(s) information:
     Total number of downstreams: 1
        1: GigabitEthernet0/1/1(bas)
             Protocol: pim-sm, UpTime: 00:01:31, Expires: -

Configuration Files

#
sysname BRAS
#
multicast ipv6 routing-enable      
#
aaa
 #
 authentication-scheme none
  authentication-mode none
 #
 accounting-scheme none
  accounting-mode none
 #
 domain wdomain
  authentication-scheme none
  accounting-scheme none
  ipv6-pool ipv6
#
interface Virtual-Template100
 ppp authentication-mode chap
#
interface GigabitEthernet0/1/0
 undo shutdown
 ipv6 enable
 ipv6 address 2001:db8:1::1/64
 pim ipv6 sm     
#
interface GigabitEthernet0/1/1.1
 ipv6 enable
 ipv6 address auto link-local
 user-vlan 133
 pppoe-server bind Virtual-Template 100
 pim ipv6 sm
 mld enable
 multicast user-aggregation vlan 81
 bas
 #
  access-type layer2-subscriber default-domain authentication wdomain
 #                                      
#
ipv6 prefix ipv6 local
 prefix 2001::db8:1::/64
#
ipv6 pool ipv6 bas local
 prefix ipv6                     
#
return