From: Roberto Fernandez (rofernandez@us.telefonica.com)
Date: Thu Oct 20 2005 - 12:50:57 GMT-3
Friends,
Is it verified the need of double definition? (Both at RP and mapping
agent) As far as I know. Definitions on the mapping agent are only
necessary when conflicts exist at the RP level.
If some of the gurus of the list could confirm the truth... it would be
great!!
Best Regards,
Roberto
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Lee Donald
Sent: Thursday, October 20, 2005 5:01 AM
To: The Great Ryan; Cisco certification
Subject: RE: Use of "ip pim rp-announce-filter"
Ryan,
You need a group list on the RP announce, and also a filter on the
mapping
agent for this situation.
I don't know why Cisco have implemented this like this, but for the RP
to be
just for 2 groups and nothing else, 2 filters must be used. One on the
RP
and the other on the mapping agent.
Regards
Lee.
-----Original Message-----
From: The Great Ryan [mailto:pv.ryan@gmail.com]
Sent: 19 October 2005 17:21
To: Cisco certification
Subject: Use of "ip pim rp-announce-filter"
Hi, Group,
---(e0)R1(s1)------(s1)R2(e0)---
I setup a lab for RP Filtering by using Auto-RP
R1 acts as RP announcement
R2 acts as mapping agent
In R1, I already limit the use of RP by access-list 11 (i.e. 224.0.0.0
7.255.255.255)
Is it necessary to also set a RP-filter on the mapping agent to limit
the use of RP?
I have no idea where I should put "ip pim rp-announce-filter" in
multicast network. Thanks !
Ryan
=======================================
R2#show ip pim rp mapping
PIM Group-to-RP Mappings
This system is an RP-mapping agent (Loopback0)
Group(s) 224.0.0.0/5
RP 172.16.1.1 (?), v2v1
Info source: 172.16.1.1 (?), elected via Auto-RP
Uptime: 00:20:11, expires: 00:02:48
================R1 Config========================
interface Loopback 0
ip address 172.16.1.1 255.255.255.0
interface serial 1
ip pim sparse-dense-mode
!
ip pim send-rp-announce Loopback0 scope 15 group-list 11
access-list 11 permit 224.0.0.0 7.255.255.255
================R2 Config========================
R2
interface s1
ip pim sparse-dense-mode
!
ip pim send-rp-discovery Loopback0 scope 15
ip pim rp-announce-filter rp-list 1 group-list 11
access-list 1 permit 172.16.1.1
access-list 11 permit 224.0.0.0 7.255.255.255
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