Preventing Auto-Rp Messages From Being Forwarded On Software: Example; Inheritance In Msdp On Software: Example - Cisco CRS Series Configuration Manual

Preventing Auto-RP Messages from Being Forwarded on Software: Example

Preventing Auto-RP Messages from Being Forwarded on Software: Example
This example shows that Auto-RP messages are prevented from being sent out of the Packet over SONET/SDH
(POS) interface 0/3/0/0. It also shows that access list 111 is used by the Auto-RP candidate and access list
222 is used by the boundary command to contain traffic on POS interface 0/3/0/0.
ipv4 access-list 111
10 permit 224.1.0.0 0.0.255.255 any
20 permit 224.2.0.0 0.0.255.255 any
!
!Access list 111 is used by the Auto-RP candidate.
!
ipv4 access-list 222
10 deny any host 224.0.1.39
20 deny any host 224.0.1.40
!
!Access list 222 is used by the boundary command to contain traffic (on POS0/3/0/0) that
is sent to groups 224.0.1.39 and 224.0.1.40.
!
router pim
auto-rp mapping-agent loopback 2 scope 32 interval 30
auto-rp candidate-rp loopback 2 scope 15 group-list 111 interval 30
multicast-routing
interface pos 0/3/0/0
boundary 222
!

Inheritance in MSDP on Software: Example

The following MSDP commands can be inherited by all MSDP peers when configured under router MSDP
configuration mode. In addition, commands can be configured under the peer configuration mode for specific
peers to override the inheritance feature.
• connect-source
• sa-filter
• ttl-threshold
If a command is configured in both the router msdp and peer configuration modes, the peer configuration
takes precedence.
In the following example, MSDP on Router A filters Source-Active (SA) announcements on all peer groups
in the address range 226/8 (except IP address 172.16.0.2); and filters SAs sourced by the originator RP
172.16.0.3 to 172.16.0.2.
MSDP peers (172.16.0.1, 172.16.0.2, and 172.17.0.1) use the loopback 0 address of Router A to set up peering.
However, peer 192.168.12.2 uses the IPv4 address configured on the Packet-over-SONET/SDH (POS) interface
to peer with Router A.
Router A
!
ipv4 access-list 111
10 deny ip host 172.16.0.3 any
20 permit any any
!
Cisco IOS XR Multicast Configuration Guide for the Cisco CRS Router, Release 5.2.x
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Implementing Multicast Routing on Cisco IOS XR Software