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Cisco ME 3400 EthernetAccess Switch SoftwareConfiguration Guide
78-17058-01
Chapter34 Configuring IP Multicast Routi ng Configuring IP Multicast Routing
To remove the PIM border, use the no ip pim bsr-border interface configuration command.
Figure34-2 Constraining PIMv2 BSR Messages
Defining the IP Multicast Boundary
You define a multicast boundary to prevent Auto-RP messages from entering the PIM domain. You
create an access list to deny packets destined for 224.0.1.39 and 224.0.1.40, which carry Auto-RP
information.
Beginning in privileged EXEC mode, follow these steps to define a multicast boundary. This procedure
is optional.
Step6 show running-config Verify your entries.
Step7 copy running-config startup-config (Optional) Save your entries in the configuration file.
Command Purpose
101243
PIMv2 sparse-mode
network
BSR
BSR
messages
Neighboring
PIMv2 domain Neighboring
PIMv2 domain
Configure the
ip pim bsr-border
command on
this interface.
Configure the
ip pim bsr-border
command on
this interface.
BSR
messages
Layer 3
switch Layer 3
switch
Command Purpose
Step1 configure terminal Enter global configuration mode.
Step2 access-list access-list-number deny
source [source-wildcard]Create a standard access list, repeating the command as many times as
necessary.
•For access-list-number, the range is 1 to 99.
•The deny keyword denies access if the conditions are matched.
•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.
Recall that the access list is always terminated by an implicit deny
statement for everything.
Step3 interface interface-id Specify the interface to be configured, and enter interface configuration
mode.
Step4 no shutdown Enable the port, if necessary. By default, UNIs are disabled, and NNIs
are enabled.