PurposeCommand or Action
Enters the global configuration mode.configure terminal
Example:
Device# configure terminal
Step 2
Creates a standard access list, repeating the command as many times as
necessary.
access-list access-list-number deny source
[source-wildcard]
Step 3
Example:
Device(config)#
access-list 12 deny 224.0.1.39
•
For access-list-number, the range is 1 to 99.
•
The deny keyword denies access if the conditions are matched.
access-list 12 deny 224.0.1.40
•
For source, enter multicast addresses 224.0.1.39 and 224.0.1.40, which
carry Auto-RP information.
•
(Optional) For source-wildcard, enter the wildcard bits in dotted decimal
notation to be applied to the source. Place ones in the bit positions that
you want to ignore.
The access list is always terminated by an implicit deny statement for
everything.
Specifies the interface to be configured, and enters interface configuration
mode.
interface interface-id
Example:
Device(config)# interface
Step 4
The specified interface must be one of the following:
• A routed port—A physical port that has been configured as a Layer 3
port by entering the no switchport interface configuration command.
gigabitethernet 1/0/1
You will also need to enable IP PIM sparse-dense-mode on the interface,
and join the interface as a statically connected member to an IGMP
static group. For a configuration example, see Example: Interface
Configuration as a Routed Port, on page 95
• An SVI—A VLAN interface created by using the interface vlan vlan-id
global configuration command. You will also need to enable IP PIM
sparse-dense-mode on the VLAN, join the VLAN as a statically
connected member to an IGMP static group, and then enable IGMP
snooping on the VLAN, the IGMP static group, and physical interface.
For a configuration example, see Example: Interface Configuration as
an SVI, on page 96
These interfaces must have IP addresses assigned to them.
Configures the boundary, specifying the access list you created in Step 2.ip multicast boundary
access-list-number
Step 5
Example:
Device(config-if)# ip multicast
boundary 12
IP Multicast Routing Configuration Guide, Cisco IOS XE Release 3.6E (Catalyst 3850 Switches)
OL-32598-01 297
Configuring Basic IP Multicast Routing
Configuring Optional IP Multicast Routing Features
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