From: Fred Ingham (fingham@xxxxxxx)
Date: Sun Jul 14 2002 - 16:58:11 GMT-3
David: If you are using R5 and R6 only as sources of the 224.2.2.2 ping you
do not need to enable multicast routing on these routers. Also the nbma
mode isn't needed anywhere you have it
For auto-rp you need ip pim sparse-dense mode on the R4 s0.1 and s0.2, R3
s0.1 and s1, and R2 s0. Clear the mroute tables or reboot after the mode
change.
Auto-rp uses 224.0.1.39 and 224.0.1.40 for announce and discovery
respectively.
If you send the R2 mroute table after the mode change I can show you which
entries are the ones to look at to know auto-rp is working correctly.
Cheers, Fred.
----- Original Message -----
From: "David Ham" <ccieau@hotmail.com>
To: <ccielab@groupstudy.com>
Sent: Sunday, July 14, 2002 3:25 AM
Subject: Multicast Help!!
> Hi all,
>
> I have multicast question which drive me crazy.
>
> The scenario is as follows,
>
>
>
> R4-s0.1--(FR)----s0.1--R3-s1------s0-R2
> |
> s0.2
> |\
> | \
> (FR)
> | \
> s0 s0
> R5 R6
>
>
> R4 s0.1 is frame subinterface point-to-point
> R4 s0.2 is frame multpoint
>
> IP connectivity is fine.
>
> At R2
> IP igmp join 224.2.2.2 at serial 0
>
> I applied
> R2 s0, ---- ip pim spare-mode
> R3 s1 =ip pim spare-mode, s0.1 = ip pim spare-mode + ip pim nbma-mode
> R4 s0.1,s0.2 = ip pim spare-mode + ip pim nbma-mode
> R5 s0 = ip pim spare-mode + ip pim nbma-mode
> R6 s0 = ip pim spare-mode + ip pim nbma-mode
>
> I add ip pim send-auto-announce s0.1 scope 15 at R3
> and
>
> add ip pim send-auto-discovery s 0.2 scope 15 at R4
>
> but I am unable to make ping 224.2.2.2 from R6, R5
>
>
> I manage to work out with static RP but I couln't work out with AUTO-RP
>
> Anyone have any idea ??
>
>
>
>
> Regards,
> David Ham
>
>
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