Chapter 30
| Multicast Routing Commands
PIM Multicast Routing
– 1061 –
Command Mode
Global Configuration
Command Usage
When the source address of a register message is filtered by intermediate network
devices, or is not a uniquely routed address to which the RP can send packets, the
replies sent from the RP to the source address will fail to reach the DR, resulting in
PIM6-SM protocol failures. This command can be used to overcome this type of
problem by manually configuring the source address of register messages to an
interface that leads back to the RP.
Example
This example sets the register source address to the interface address for VLAN 1.
Console(config)#ipv6 pim register-source interface vlan 1
Console(config)#
ipv6 pim rp-address This command sets a static address for the Rendezvous Point (RP) for a particular
multicast group. Use the no form to remove an RP address or an RP address for a
specific group.
Syntax
[no] ipv6 pim rp-address rp-address [group-prefix group-prefix]
rp-address - Static IPv6 address of the router that will be an RP for the
specified multicast group(s).
group-prefix - An IPv6 network prefix for a multicast group. If a group prefix
is not specified, the RP is used for all multicast groups.
Default Setting
None
Command Mode
Global Configuration
Command Usage
â—† The router specified by this command will act as an RP for all multicast groups
in the local PIM6-SM domain if no groups are specified. A static RP can either be
configured for the whole multicast group range FF00::/8, or for specific group
ranges.
â—† Using this command to configure multiple static RPs with the same RP address
is not allowed. If an IP address is specified that was previously used for an RP,
then the older entry is replaced. (
â—† Multiple RPs can be defined for different groups or group ranges. If a group is
matched by more than one entry, the router will use the RP associated with the
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