4-5
IPv6 Multicast VLAN Configuration Examples
Network requirements
z As shown in Figure 4-3, Router A connects to an IPv6 multicast source (Source) through Ethernet
1/0/1, and to Switch A through Ethernet 1/0/2.
z MLDv1 is required on Router A. MLDv1 Snooping is required on Switch A. Router A acts as the
MLD querier.
z Switch A’s Ethernet 1/0/1 belongs to VLAN 10, Ethernet 1/0/2 through Ethernet 1/0/4 belong to
VLAN 2 through VLAN 4 respectively, and Host A through Host C are attached to Ethernet 1/0/2
through Ethernet 1/0/4 of Switch A.
z The IPv6 multicast source sends IPv6 multicast data to IPv6 multicast group FF1E::101. Host A,
Host B, and Host C are receivers of the IPv6 multicast group.
z Configure the port-based IPv6 multicast VLAN feature so that Router A just sends IPv6 multicast
data to Switch A through the IPv6 multicast VLAN and Switch A forward the IPv6 multicast data to
the receivers that belong to different user VLANs.
Figure 4-3 Network diagram for port-based IPv6 multicast VLAN configuration
Source
Receiver
Host A
VLAN 2
Eth1/0/2
Eth1/0/3
Eth1/0/4
Switch A
MLD querier
Router A
Eth1/0/1
1::2/64
Eth1/0/2
2001::1/64
1::1/64
Receiver
Host B
VLAN 3
Receiver
Host C
VLAN 4
Eth1/0/1
Configuration procedure
1) Enable IPv6 forwarding and configure IPv6 addresses
Enable IPv6 forwarding on each device and configure the IPv6 address and address prefix for each
interface as per
Figure 4-3. The detailed configuration steps are omitted here.
2) Configure Router A
# Enable IPv6 multicast routing, enable IPv6 PIM-DM on each interface, and enable MLD on the
host-side interface Ethernet 1/0/2.
<RouterA> system-view
[RouterA] multicast ipv6 routing-enable
[RouterA] interface ethernet 1/0/1
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