Configuring A Multicast Data Filter; Configuring A Hello Message Filter - HP 4800G Series Configuration Manual

PIM neighbor timeout time (global value/interface value)
Prune delay (global value/interface level value)
Prune override interval (global value/interface level value)
Hello interval (global value/interface level value)
Maximum delay between hello message (interface level value)
Assert timeout time (global value/interface value)
Join/prune interval (global value/interface level value)
Join/prune timeout (global value/interface value)
Multicast source lifetime
Maximum size of join/prune messages
Maximum number of (S, G) entries in a join/prune message

Configuring a Multicast Data Filter

No matter in a PIM-DM domain or a PIM-SM domain, routers can check passing-by multicast data
based on the configured filtering rules and determine whether to continue forwarding the multicast data.
In other words, PIM routers can act as multicast data filters. These filters can help implement traffic
control on one hand, and control the information available to receivers downstream to enhance data
security on the other hand.
Follow these steps to configure a multicast data filter:
To do...
Enter system view
Enter PIM view
Configure a multicast group
filter
Generally, a smaller distance from the filter to the multicast source results in a more remarkable
filtering effect.
This filter works not only on independent multicast data but also on multicast data encapsulated in
register messages.

Configuring a Hello Message Filter

Along with the wide applications of PIM, the security requirement for the protocol is becoming more and
more demanding. The establishment of correct PIM neighboring relationships is the prerequisite for
secure application of PIM. You can configure a legal source address range for hello messages on
interfaces of routers to ensure the correct PIM neighboring relationships, and thus to guard against PIM
message attacks.
Follow these steps to configure a hello message filter:
Use the command...
system-view
pim
source-policy acl-number
1-31
Remarks
—
—
Required
No multicast data filter by
default