From: Nguyen Hoang Long (ng-hlong@hn.vnn.vn)
Date: Tue May 06 2003 - 01:57:38 GMT-3
- Since you use pim-sparse-dense mode on all three routers. So normally R1,
R3 should be able to ping each other's group address.
use filtering as:
r2:
interface serial 0
ip multicast boundary 1
access-list 1 deny 225.1.1.1 0.0.0.0
access-list 1 deny 225.3.3.3 0.0.0.0
access-list 1 permit any
- 'ip pim nbma' is useless on spoke routers.
----- Original Message -----
From: "zhou jun" <zjxjgo@vip.sina.com>
To: <ccielab@groupstudy.com>
Sent: Sunday, May 11, 2003 9:24 AM
Subject: atuo-rp question
> group:
> I do a lab for auto-rp and sparse-dense over frame multipoint question.
> according TCP/IP volume 2 ,r1,r2,r3 in same subnet,r2 is hub,r1 and r3 is
spoke ,the question is r1 and r3 cann't each other ping it's group
address,r1 and r3 can ping r2's group address.thank you for any advice!
>
> r1:
> ip multicast-routing
>
> int lo0
> ip add 10.5.1.1 255.255.255.0
>
> int e0
> ip add ...
> ip pim sparse-dense
> ip igmp join-group 225.1.1.1
>
> int s0
> encacp frame
> frame map ip 10.5.123.2 102 broad
> frame map ip 10.5.123.3 103 broad
> ip add 10.5.123.1
> ip ospf net point-to-multipoint
> ip pim spares-dense-mode
> ip pim nbma
>
> ip pim send-rp-announce lo0 scope 5
>
> router ospf 1
> net 0.0.0.0 255.255.255.255 area 0
>
> r2:
> ip multicast-routing
>
> int lo0
> ip add 10.5.2.2 255.255.255.0
> ip pim sparse-mode
>
> int e0
> ip add ...
> ip pim sparse-dense
> ip igmp join-group 225.2.2.2
>
> int s0
> encacp frame
> frame map ip 10.5.123.1 201 broad
> frame map ip 10.5.123.3 203 broad
> ip add 10.5.123.2
> ip ospf net point-to-multipoint
> ip pim spares-dense-mode
> ip pim nbma
>
> ip pim send-rp-discovery lo0 scope 5
>
> router ospf 1
> net 0.0.0.0 255.255.255.255 area 0
>
> r3:
> ip multicast-routing
>
> int lo0
> ip add 10.5.3.3 255.255.255.0
>
> int e0
> ip add ...
> ip pim sparse-dense
> ip igmp join-group 225.3.3.3
>
> int s0
> encacp frame
> frame map ip 10.5.123.1 301 broad
> frame map ip 10.5.123.2 302 broad
> ip add 10.5.123.3
> ip ospf net point-to-multipoint
> ip pim spares-dense-mode
> ip pim nbma
>
> ip pim send-rp-announce lo0 scope 5
>
> router ospf 1
> net 0.0.0.0 255.255.255.255 area 0
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