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User Guide for Cisco Security Manager 4.4
OL-28826-01
Chapter 53 Configuring Multicast Policies on Firewall Devices
Configuring PIM
Related Topics
• PIM Page - Rendezvous Points Tab, page 53-15
• PIM Page - Route Tree Tab, page 53-17
• PIM Page - Request Filter Tab, page 53-18
Add/Edit PIM Protocol Dialog Box
Use the Add/Edit PIM Protocol dialog box to configure PIM properties for an interface on a security
appliance running PIX 7.x or later.
About the Designated Router
The DR is responsible for sending PIM register, join, and prune messaged to the Rendezvous Point (RP).
When there is more than one multicast routing device on a network segment, there is an election process
to select the Designated Router based on DR priority. If multiple devices have the same DR priority, then
the device with the highest IP address becomes the DR. By default, security appliances have a DR
priority of 1.
Navigation Path
You can access the Add/Edit PIM Protocol dialog box from the PIM Page - Protocol Tab, page 53-11.
Field Reference
PIM Page - Neighbor Filter Tab
A PIM neighbor filter is an access control list (ACL) that defines the neighbor devices that can
participate in PIM. If a neighbor filter is not configured for an interface, then there are no restrictions.
If a PIM neighbor filter is configured, only those neighbors permitted by the filter list can participate in
PIM with the security appliance.
Table 53-11 Add/Edit PIM Protocol Dialog Box
Element Description
Interface Enter or Select the interface on which you are configuring PIM.
Enable PIM When checked, PIM is enabled on the selected interface. You can
deselect this option to disable PIM on the interface without deleting this
PIM Protocol entry from the table.
DR Priority The designated router (DR) priority for this interface. The router with
the highest DR priority on subnet becomes the designated router. Valid
values range from 0 to 4294967294. The default DR priority is 1.
Setting this value to zero makes the security appliance interface
ineligible to become the default router.
Hello Interval (seconds) The frequency, in seconds, at which the interface sends PIM hello
messages. Valid values range from 1 to 3600 seconds; the default value
is 30 seconds.
Join-Prune Interval (seconds) The frequency, in seconds, at which the interface sends PIM join and
prune advertisements. Valid values range from 10 to 600 seconds; the
default value is 60 seconds.