From: Daniel Free (danrose111@earthlink.net)
Date: Tue May 06 2003 - 03:12:41 GMT-3
Hi Zhou,
You stated that your scenario is a Hub and Spoke with R2 as the hub and
R1,R3 as spokes. I see two potential problems in your configs:
On R1:
frame map ip 10.5.123.2 102 broad
frame map ip 10.5.123.3 103 broad
ip ospf net point-to-multipoint
!!
First issue:
Your second map statement should point to dlci 102
Second issue:
Since you are using ospf network type point-to-multipoint you do not even
need the second map statement. OSPF will install a host route for R3 in R1
routing table.
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
On R3
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
!!
Same issues as on R1 except point dlci to 301
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
I suggest you remove the second map statement from R1 and R3, watch as OSPF
installs the /32 for each spoke and I believe your multicast issue will be
resolved. Please let us know how you make out.
Best of luck.
Danny
----- Original Message -----
From: "zhou jun" <zjxjgo@vip.sina.com>
To: <ccielab@groupstudy.com>
Sent: Saturday, May 10, 2003 10:24 PM
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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