From: Connary, Julie Ann (jconnary@xxxxxxxxx)
Date: Mon Jan 22 2001 - 11:12:18 GMT-3
Here is a great little tutorial on tools for debuging multicasting and a
quick start guide - I would
suggest you start there as it is very usefull and explains all of the
questions posed below:
http://www.cisco.com/warp/public/105/48.html
http://www.cisco.com/warp/public/105/mcastguide0.html
Found on cco by doing a search for : multicast quick
Julie Ann
At 08:58 AM 1/21/2001 -1000, Stanford Wong - SPAWAR wrote:
>Doesn't both routers have to have a RP (since you are in PIM-SPARSE)? On
>your router r1, it doesn't have a the RP. Also, R2 should have the ip igmp
>join-group 224.2.2.2 statement too.
>
>You may want to see what groups each router has joined, but using the "show
>ip igmp groups" to see which groups your routers have joined.
>
>Also you can verify where each router thinks the RP is by using the " sho ip
>pim rp mapping".
>
>As another check, make sure they have made neighbors by using the "sho ip
>pim neighbor".
>
>stanford
>
>-----Original Message-----
>From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
>Steve Clubb
>Sent: Saturday, January 20, 2001 10:15 PM
>To: 'ccielab@groupstudy.com'
>Subject: ip multicasting and ping
>
>
>For all you multi-cast wizards out there, I have 2 routers configured as
>such:
>
>r2 cannot ping multicast 224.2.2.2-4 on r1's e0.
>
>Any reasons why?
>
>Thanks,
>
>Steve
>
>
>r1#
>ip multicast-routing
>ip dvmrp route-limit 20000
>!
>interface Ethernet0
> ip address 137.20.10.1 255.255.255.0
> ip pim sparse-mode
> ip igmp join-group 224.2.2.2
> !
>interface Serial0.2 point-to-point
> ip address 137.20.12.1 255.255.255.0
> ip pim nbma-mode
> ip pim sparse-mode
>
>r2#
>ip multicast-routing
>ip dvmrp route-limit 20000
>!
>interface Serial0
> ip address 137.20.12.2 255.255.255.0
> ip pim nbma-mode
> ip pim sparse-mode
> !
>interface TokenRing0
> ip address 137.20.22.1 255.255.255.240
> ip multicast use-functional
> ip pim sparse-mode
>!
>ip pim rp-address 137.20.12.1
>
>
>r2#ping 224.2.2.2
>
>Type escape sequence to abort.
>Sending 1, 100-byte ICMP Echos to 224.2.2.2, timeout is 2 seconds:
>..
>r2#
>
>
>
>
>
>
>
>
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