# Configuring IPv6 Hardware Multicast Packet Replication

To configure hardware multicast packet replication:

1. Configure port 8 on a high-density Ethernet module to accept redirected egress multicast traffic.
   1. Specify the Gigabit Ethernet interface on port 8.
   2. Create a VLAN major interface.
   3. Create a VLAN subinterface.
   4. Assign a VLAN ID.
   5. Configure an unnumbered IPv6 interface.
   6. Enable MLD on the interface with only multicast-data-forwarding capability.
      host1(config)#interface gigabitEthernet 2/8 host1(config-if)#encapsulation vlan host1(config-if)#interface gigabitEthernet 2/8.1 host1(config-if)#vlan id 1 host1(config-if)#ipv6 unnumbered loopback 0 host1(config-if)#ipv6 mld version passive
2. Configure an IPv6 interface to redirect egress multicast traffic to port 8.
   1. Create a VLAN subinterface.
   2. Assign a VLAN ID.
   3. Assign an IPv6 address.
   4. Configure the interface to redirect egress multicast traffic to port 8.
      host1(config)#interface gigabitEthernet 2/0.101 host1(config-if)#vlan id 1 host1(config-if)#ipv6 address 1::1/64 host1(config-if)#ipv6 multicast ioa-packet-replication gigabitEthernet 2/8.1

#### Related Documentation

- Before You Begin
- IPv6 Hardware Multicast Packet Replication Overview
- IPv6 Hardware Multicast Packet Replication Considerations
- Monitoring IPv6 Hardware Multicast Packet Replication
- encapsulation vlan
- interface gigabitEthernet
- ipv6 address
- ipv6 mld version
- ipv6 multicast ioa-packet-replication
- ipv6 unnumbered
- vlan id